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Engine Coolant Thermostat

Name: Engine Coolant Thermostat
Brand: ACDelco
Availability: OutOfStock

PART#: 12T55D

ACDelco

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$4.75

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Fitments

Year	Make	Model	Submodel	Engine	Fuel Type	Note
2009	Chevrolet	Equinox	LS	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2009	Chevrolet	Equinox	LT	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2009	Chevrolet	Equinox	LTZ	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2009	Pontiac	Torrent	Base	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2008	Chevrolet	Equinox	LS	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2008	Chevrolet	Equinox	LTZ	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2008	Chevrolet	Equinox	LT	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2008	Pontiac	Torrent	Base	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2007	Buick	Rendezvous	CXL	3.5V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2007	Buick	Rendezvous	CX	3.5V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2007	Chevrolet	Equinox	LS	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2007	Chevrolet	Equinox	LT	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2007	Chevrolet	Silverado 2500 HD Classic	LT	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2007	Chevrolet	Silverado 2500 HD Classic	LS	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2007	Chevrolet	Silverado 2500 HD Classic	WT	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2007	Chevrolet	Silverado 3500 Classic	LS	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2007	Chevrolet	Silverado 3500 Classic	LT	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2007	Chevrolet	Silverado 3500 Classic	WT	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2007	GMC	Sierra 2500 HD Classic	WT	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2007	GMC	Sierra 2500 HD Classic	SLE	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2007	GMC	Sierra 2500 HD Classic	SLT	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2007	GMC	Sierra 2500 HD Classic	SL	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2007	GMC	Sierra 3500 Classic	SLT	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2007	GMC	Sierra 3500 Classic	WT	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2007	GMC	Sierra 3500 Classic	SL	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2007	GMC	Sierra 3500 Classic	SLE	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2007	Pontiac	Torrent	Base	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2006	Buick	Rendezvous	CX	3.5V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2006	Buick	Rendezvous	CXL	3.5V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2006	Buick	Terraza	CX	3.5V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2006	Buick	Terraza	CXL	3.5V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2006	Chevrolet	Equinox	LT	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2006	Chevrolet	Equinox	LS	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2006	Chevrolet	Malibu	Maxx LS	3.5V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2006	Chevrolet	Malibu	Maxx LT	3.5V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2006	Chevrolet	Malibu	LTZ	3.5V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2006	Chevrolet	Malibu	LS	3.5V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2006	Chevrolet	Malibu	LT	3.5V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2006	Chevrolet	Malibu	Maxx LTZ	3.5V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2006	Chevrolet	Uplander	LT	3.5V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2006	Chevrolet	Uplander	Base	3.5V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2006	Chevrolet	Uplander	LS	3.5V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2006	Chevrolet	Suburban 2500	LS	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2006	Chevrolet	Suburban 2500	LT	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2006	Chevrolet	Silverado 2500 HD	LS	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2006	Chevrolet	Silverado 2500 HD	LT	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2006	Chevrolet	Silverado 2500 HD	WT	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2006	Chevrolet	Silverado 3500	LS	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2006	Chevrolet	Silverado 3500	WT	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2006	Chevrolet	Silverado 3500	LT	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2006	Chevrolet	Avalanche 2500	LS	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2006	Chevrolet	Avalanche 2500	LT	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2006	GMC	Yukon XL 2500	SLE	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2006	GMC	Yukon XL 2500	SLT	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2006	GMC	Sierra 2500 HD	SL	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2006	GMC	Sierra 2500 HD	WT	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2006	GMC	Sierra 2500 HD	SLE	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2006	GMC	Sierra 2500 HD	SLT	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2006	GMC	Sierra 3500	SLE	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2006	GMC	Sierra 3500	WT	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2006	GMC	Sierra 3500	SL	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2006	GMC	Sierra 3500	SLT	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2006	Pontiac	Torrent	Base	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2006	Pontiac	Montana	SV6	3.5V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2006	Saturn	Relay	2	3.5V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2006	Saturn	Relay	3	3.5V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2005	Buick	Century	Limited	3.1V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2005	Buick	Century	Special Edition	3.1V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2005	Buick	Century	Custom	3.1V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2005	Buick	Rendezvous	CX Plus	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2005	Buick	Rendezvous	CXL	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2005	Buick	Rendezvous	CX	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2005	Buick	Terraza	CX	3.5V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2005	Buick	Terraza	CXL	3.5V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2005	Chevrolet	Equinox	LS	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2005	Chevrolet	Equinox	LT	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2005	Chevrolet	Avalanche 2500	LS	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2005	Chevrolet	Avalanche 2500	LT	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2005	Chevrolet	Impala	Base	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2005	Chevrolet	Malibu	LS	3.5V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2005	Chevrolet	Malibu	LT	3.5V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2005	Chevrolet	Malibu	Maxx LT	3.5V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2005	Chevrolet	Malibu	Maxx LS	3.5V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2005	Chevrolet	Monte Carlo	LS	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2005	Chevrolet	Silverado 2500 HD	LS	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2005	Chevrolet	Silverado 2500 HD	Base	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2005	Chevrolet	Silverado 2500 HD	WT	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2005	Chevrolet	Silverado 2500 HD	LT	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2005	Chevrolet	Silverado 3500	Base	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2005	Chevrolet	Silverado 3500	LT	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2005	Chevrolet	Silverado 3500	LS	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2005	Chevrolet	Suburban 2500	LT	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2005	Chevrolet	Suburban 2500	LS	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2005	Chevrolet	Venture	LT	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2005	Chevrolet	Venture	LS	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2005	Chevrolet	Venture	Plus	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2005	Chevrolet	Uplander	LS	3.5V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2005	Chevrolet	Uplander	LT	3.5V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2005	Chevrolet	Uplander	Base	3.5V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2005	GMC	Sierra 2500 HD	SLT	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2005	GMC	Sierra 2500 HD	SLE	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2005	GMC	Sierra 2500 HD	Base	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2005	GMC	Sierra 2500 HD	WT	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2005	GMC	Sierra 3500	SLE	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2005	GMC	Sierra 3500	SLT	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2005	GMC	Sierra 3500	Base	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2005	GMC	Sierra 3500	WT	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2005	GMC	Yukon XL 2500	SLT	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2005	GMC	Yukon XL 2500	SLE	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2005	Pontiac	Aztek	Rally	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2005	Pontiac	Aztek	Base	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2005	Pontiac	G6	Base	3.5V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2005	Pontiac	G6	GT	3.5V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2005	Pontiac	Grand Am	GT1	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2005	Pontiac	Grand Am	SE	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2005	Pontiac	Grand Am	GT	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2005	Pontiac	Montana	Base	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2005	Pontiac	Montana	SV6	3.5V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2005	Saturn	Relay	3	3.5V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2005	Saturn	Relay	2	3.5V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2004	Buick	Century	Custom	3.1V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2004	Buick	Century	Limited	3.1V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2004	Buick	Rendezvous	CX	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2004	Buick	Rendezvous	CXL	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2004	Chevrolet	Avalanche 2500	Base	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2004	Chevrolet	Impala	Base	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2004	Chevrolet	Malibu	LT	3.5V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2004	Chevrolet	Malibu	Maxx LT	3.5V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2004	Chevrolet	Malibu	LS	3.5V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2004	Chevrolet	Malibu	Maxx	3.5V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2004	Chevrolet	Malibu	Maxx LS	3.5V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2004	Chevrolet	Monte Carlo	LS	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2004	Chevrolet	Silverado 2500 HD	LT	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2004	Chevrolet	Silverado 2500 HD	LS	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2004	Chevrolet	Silverado 2500 HD	WT	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2004	Chevrolet	Silverado 2500 HD	Base	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2004	Chevrolet	Silverado 3500	LT	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2004	Chevrolet	Silverado 3500	Base	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2004	Chevrolet	Silverado 3500	LS	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2004	Chevrolet	Silverado 3500	WT	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2004	Chevrolet	Suburban 2500	LS	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2004	Chevrolet	Suburban 2500	LT	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2004	Chevrolet	Venture	LT	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2004	Chevrolet	Venture	Plus	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2004	Chevrolet	Venture	LS	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2004	GMC	Sierra 2500 HD	SLE	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2004	GMC	Sierra 2500 HD	SLT	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2004	GMC	Sierra 2500 HD	Base	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2004	GMC	Sierra 2500 HD	WT	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2004	GMC	Sierra 3500	WT	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2004	GMC	Sierra 3500	Base	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2004	GMC	Sierra 3500	SLT	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2004	GMC	Sierra 3500	SLE	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2004	GMC	Yukon XL 2500	SLT	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2004	GMC	Yukon XL 2500	SLE	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2004	Oldsmobile	Alero	GLS	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2004	Oldsmobile	Alero	GL	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2004	Oldsmobile	Silhouette	GL	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2004	Oldsmobile	Silhouette	Premiere	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2004	Oldsmobile	Silhouette	GLS	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2004	Pontiac	Aztek	Base	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2004	Pontiac	Aztek	Rally	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2004	Pontiac	Grand Am	SE2	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2004	Pontiac	Grand Am	GT	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2004	Pontiac	Grand Am	SE	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2004	Pontiac	Grand Am	SE1	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2004	Pontiac	Grand Am	GT1	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2004	Pontiac	Montana	Base	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2003	Buick	Century	Custom	3.1V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2003	Buick	Rendezvous	CX Plus	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2003	Buick	Rendezvous	CXL	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2003	Buick	Rendezvous	CXL Plus	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2003	Buick	Rendezvous	CX	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2003	Chevrolet	Avalanche 2500	Base	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2003	Chevrolet	Impala	Base	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2003	Chevrolet	Malibu	Base	3.1V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2003	Chevrolet	Malibu	LS	3.1V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2003	Chevrolet	Monte Carlo	LS Sport	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2003	Chevrolet	Monte Carlo	LS	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2003	Chevrolet	Monte Carlo	LS Competition	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2003	Chevrolet	Silverado 2500 HD	LS	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2003	Chevrolet	Silverado 2500 HD	LT	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2003	Chevrolet	Silverado 2500 HD	Base	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2003	Chevrolet	Silverado 3500	LT	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2003	Chevrolet	Silverado 3500	Base	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2003	Chevrolet	Silverado 3500	LS	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2003	Chevrolet	Suburban 2500	LS	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2003	Chevrolet	Suburban 2500	LT	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2003	Chevrolet	Venture	Value	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2003	Chevrolet	Venture	LT	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2003	Chevrolet	Venture	Warner Bros.	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2003	Chevrolet	Venture	LS	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2003	Chevrolet	Venture	Plus	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2003	GMC	Sierra 2500 HD	SLT	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2003	GMC	Sierra 2500 HD	WT	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2003	GMC	Sierra 2500 HD	Base	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2003	GMC	Sierra 2500 HD	SLE	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2003	GMC	Sierra 3500	Base	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2003	GMC	Sierra 3500	SLT	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2003	GMC	Sierra 3500	SLE	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2003	GMC	Yukon XL 2500	SLT	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2003	GMC	Yukon XL 2500	SLE	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2003	Oldsmobile	Alero	GLS	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2003	Oldsmobile	Alero	GL	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2003	Oldsmobile	Silhouette	GL	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2003	Oldsmobile	Silhouette	GLS	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2003	Oldsmobile	Silhouette	Premiere	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2003	Pontiac	Aztek	Base	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2003	Pontiac	Grand Am	SE1	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2003	Pontiac	Grand Am	SE2	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2003	Pontiac	Grand Am	GT1	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2003	Pontiac	Grand Am	GT	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2003	Pontiac	Grand Am	SE	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2003	Pontiac	Grand Prix	SE	3.1V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2003	Pontiac	Montana	Base	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2002	Buick	Century	Limited	3.1V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2002	Buick	Century	Custom	3.1V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2002	Buick	Rendezvous	CX Plus	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2002	Buick	Rendezvous	CXL	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2002	Buick	Rendezvous	CX	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2002	Buick	Rendezvous	CXL Plus	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2002	Chevrolet	Avalanche 2500	Base	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2002	Chevrolet	Express 3500	Base	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2002	Chevrolet	Express 3500	LS	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2002	Chevrolet	Impala	Base	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2002	Chevrolet	Malibu	Base	3.1V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2002	Chevrolet	Malibu	LS	3.1V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2002	Chevrolet	Monte Carlo	LS	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2002	Chevrolet	Silverado 2500 HD	Base	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2002	Chevrolet	Silverado 2500 HD	LT	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2002	Chevrolet	Silverado 2500 HD	LS	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2002	Chevrolet	Silverado 3500	Base	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2002	Chevrolet	Silverado 3500	LT	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2002	Chevrolet	Silverado 3500	LS	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2002	Chevrolet	Suburban 2500	LS	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2002	Chevrolet	Suburban 2500	LT	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2002	Chevrolet	Venture	Warner Bros.	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2002	Chevrolet	Venture	LS	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2002	Chevrolet	Venture	Base	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2002	Chevrolet	Venture	LT	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2002	Chevrolet	Venture	Plus	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2002	Chevrolet	Venture	Value	3.4V6	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2002	GMC	Savana 3500	SLT	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2002	GMC	Savana 3500	Base	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2002	GMC	Sierra 2500 HD	SL	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2002	GMC	Sierra 2500 HD	Base	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2002	GMC	Sierra 2500 HD	SLE	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2002	GMC	Sierra 2500 HD	SLT	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2002	GMC	Sierra 3500	SL	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F
2002	GMC	Sierra 3500	SLT	8.1V8	GAS	Alternate Temp; Included Components: Includes seal; Standard; Temperature: Temperature 180F

Product info

The ACDelco Engine Coolant Thermostat is a top-quality replacement part designed for Buick, Cadillac, Chevrolet, and GMC vehicles. Part number 12T55D is a reliable and efficient option for regulating the engine temperature and ensuring optimal performance.

This thermostat is manufactured with precision and accuracy, ensuring a perfect fit for your vehicle. It is made from high-quality materials that are built to last, providing long-lasting durability and reliability.

One of the key benefits of this product is that it helps maintain the engine’s operating temperature, ensuring that it doesn’t overheat or underperform. Additionally, this thermostat helps reduce fuel consumption and emissions, making it an eco-friendly choice.

The ACDelco Engine Coolant Thermostat comes with a range of features that make it a must-have replacement part. It is designed to maintain consistent and reliable engine performance, even in extreme temperatures. Its robust construction ensures that it can withstand harsh conditions, making it the ideal choice for off-road enthusiasts.

Overall, the ACDelco Engine Coolant Thermostat is an essential part of any vehicle’s cooling system. If you’re in need of a reliable and efficient replacement part, then look no further than the ACDelco Engine Coolant Thermostat part number 12T55D. It is a smart investment that will help keep your engine running smoothly and efficiently for miles to come.

About ACDelco

When it comes to top-notch auto parts, one brand that stands tall is ACDelco. Popular for its commitment to quality and innovation, ACDelco has been a trusted name in the automotive industry. At Newparts.com, we're proud to offer a wide selection of ACDelco auto parts, including ACDelco spark plugs, ACDelco alternators, and ACDelco air filters, and other ACDelco parts, all at discounted prices.

ACDelco spark plugs are engineered to deliver exceptional performance and reliability, ensuring optimal engine operation and fuel efficiency. Whether you're cruising down the highway or navigating city streets, you can trust ACDelco spark plugs to keep your engine firing on all cylinders.

When it comes to power generation, ACDelco alternators are second to none. Designed to withstand the challenges of daily driving, ACDelco alternators deliver consistent power output to keep your vehicle's electrical systems running smoothly. With ACDelco alternators from Newparts.com, you can count on reliable performance mile after mile.

In addition to spark plugs and alternators, we also offer a range of ACDelco air filters to help keep your engine breathing clean, fresh air. ACDelco air filters are designed to trap dirt, dust, and other contaminants, preventing them from entering your engine and causing damage. With a high-quality ACDelco air filter from Newparts.com, you can enjoy improved engine performance and extended engine life.

At Newparts.com, we understand that getting the right parts quickly is essential. That's why we offer fast shipping on all ACDelco auto parts, so you can get back on the road with confidence. Plus, with our discounted prices, you can save big on the parts you need to keep your vehicle running smoothly. In case you want to purchase parts by phone, feel free to call us at 855-505-2886 and our customer service team will help you out.

Whether you're in need of spark plugs, alternators, air filters, or any other ACDelco auto parts, Newparts.com has you covered. Shop our selection today and experience the quality and reliability of ACDelco for yourself.

Specifications

Yes
Seal Type	Gasket

Warranty

We offer a 2-year warranty on all parts that we sell. If the part fails within 2 years of purchase, please contact us for instructions to replace it. The warranty does not cover normal wear and tear or improper installation. On many parts, we also offer Extend product protection, which is a way to add up to 3 additional years for 5 total years of worry free coverage. Select your preferred term length and you're covered!

Delivery & Returns

Delivery Info

Newparts.com is your go to store for all parts and accessories at the best price and delivered quickly. Every order we ship receives a tracking number so that you can watch it all the way until it reaches your door. We only ship using the major shipping carriers like FedEx, UPS and USPS to ensure quick and safe delivery of your new car parts order.

Returns Info

Newparts.com offers a thirty (30) day return for refund for all items purchased through Newparts.com. To qualify for return and refund, all items must be new and in their original manufacturers box. To initiate a return, please contact our customer service. This information is only a summary. Complete shipping and return policy information can be found in our web site policies.

Engine Coolant Thermostat

Delivery Info

Returns Info

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