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Spark Plug

PART#: R45S
ACDelco
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Spark Plug
Spark Plug
Spark Plug
Spark Plug

$1.85

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In stock

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Interchanges
BrandPart #
Genuine GM Parts19362366
Fitments
YearMakeModelSubmodelEngineFuel TypePositionNote
1976ChryslerCordobaBase6.6V8GASGap .035 | Engine VIN: M; | Engine VIN: N;
1976ChryslerNew YorkerBrougham7.2V8GASGap .035
1976ChryslerNew YorkerBrougham6.6V8GASGap .035
1976ChryslerNewportBase7.2V8GASGap .035
1976ChryslerNewportCustom7.2V8GASGap .035
1976ChryslerNewportCustom6.6V8GASGap .035
1976ChryslerNewportBase6.6V8GASGap .035
1976ChryslerTown & CountryBase7.2V8GASGap .035
1976ChryslerTown & CountryBase6.6V8GASGap .035
1976PlymouthFurySalon6.6V8GASGap .035
1976PlymouthFurySport6.6V8GASGap .035
1976PlymouthFuryBase6.6V8GASGap .035
1976PlymouthGran FuryCustom7.2V8GASGap .035 | Engine VIN: T;
1976PlymouthGran FurySport6.6V8GASGap .035
1976PlymouthGran FuryBrougham6.6V8GASGap .035
1976PlymouthGran FuryBrougham7.2V8GASGap .035 | Engine VIN: T;
1976PlymouthGran FuryBase7.2V8GASGap .035 | Engine VIN: T;
1976PlymouthGran FuryCustom6.6V8GASGap .035
1976PlymouthGran FurySuburban6.6V8GASGap .035
1976PlymouthGran FuryBase6.6V8GASGap .035
1976PlymouthGran FurySport Suburban6.6V8GASGap .035
1976PlymouthGran FuryCustom Suburban6.6V8GASGap .035
1976PlymouthGran FurySport7.2V8GASGap .035 | Engine VIN: T;
1975ChryslerCordobaBase6.6V8GASGap .035 | Engine VIN: M; | Engine VIN: N;
1975ChryslerNew YorkerBrougham7.2V8GASGap .035
1975ChryslerNew YorkerBrougham6.6V8GASGap .035
1975ChryslerNewportCustom6.6V8GASGap .035
1975ChryslerNewportBase7.2V8GASGap .035 | Engine VIN: T;
1975ChryslerNewportBase6.6V8GASGap .035
1975ChryslerNewportCustom7.2V8GASGap .035 | Engine VIN: T;
1975ChryslerTown & CountryBase6.6V8GASGap .035
1975ChryslerTown & CountryBase7.2V8GASGap .035
1975PlymouthFuryCustom6.6V8GASGap .035
1975PlymouthFuryBase6.6V8GASGap .035
1975PlymouthFurySport6.6V8GASGap .035
1975PlymouthGran FurySuburban6.6V8GASGap .035
1975PlymouthGran FurySport Suburban6.6V8GASGap .035
1975PlymouthGran FuryCustom Suburban6.6V8GASGap .035
1975PlymouthGran FuryBase6.6V8GASGap .035
1975PlymouthGran FuryCustom6.6V8GASGap .035
1975PlymouthGran FuryCustom6.6V8GASGap .035
1975PlymouthGran FuryBrougham6.6V8GASGap .035
1975PlymouthGran FurySport6.6V8GASGap .035
1974GMCTransmodeBase7.5V8GASGap .040
1974Oldsmobile98Base7.5V8GASGap .040; Without high energy ignition
1974Oldsmobile98Base7.5V8GASGap .040; Without high energy ignition
1974Oldsmobile98Regency7.5V8GASGap .040; Without high energy ignition
1974Oldsmobile98Regency7.5V8GASGap .040; Without high energy ignition
1974OldsmobileCustom CruiserBase7.5V8GASGap .040; Without high energy ignition
1974OldsmobileCustom CruiserBase7.5V8GASGap .040; Without high energy ignition
1974OldsmobileCutlassS5.7V8GASGap .040
1974OldsmobileCutlassBase7.5V8GASGap .040
1974OldsmobileCutlassBase5.7V8GASGap .040
1974OldsmobileCutlassS7.5V8GASGap .040
1974OldsmobileCutlass SupremeBase5.7V8GASGap .040
1974OldsmobileCutlass SupremeBase7.5V8GASGap .040
1974OldsmobileCutlass SupremeCruiser7.5V8GASGap .040
1974OldsmobileCutlass SupremeCruiser5.7V8GASGap .040
1974OldsmobileDelta 88Royale5.7V8GASGap .040
1974OldsmobileDelta 88Royale7.5V8GASGap .040; Without high energy ignition
1974OldsmobileDelta 88Royale7.5V8GASGap .040; Without high energy ignition
1974OldsmobileDelta 88Base5.7V8GASGap .040
1974OldsmobileDelta 88Base7.5V8GASGap .040; Without high energy ignition
1974OldsmobileDelta 88Base7.5V8GASGap .040; Without high energy ignition
1974OldsmobileOmegaBase5.7V8GASGap .040
1974OldsmobileToronadoBrougham7.5V8GASGap .040; Without high energy ignition
1974OldsmobileToronadoBase7.5V8GASGap .040; Without high energy ignition
1974OldsmobileVista CruiserBase5.7V8GASGap .040
1974OldsmobileVista CruiserBase7.5V8GASGap .040
1973GMCTransmodeBase7.5V8GASGap .040
1973Oldsmobile98Base7.5V8GASGap .040; Without high energy ignition
1973Oldsmobile98Regency7.5V8GASGap .040; Without high energy ignition
1973Oldsmobile98Regency7.5V8GASGap .040; Without high energy ignition
1973Oldsmobile98Base7.5V8GASGap .040; Without high energy ignition
1973OldsmobileCustom CruiserBase7.5V8GASGap .040; Without high energy ignition
1973OldsmobileCustom CruiserBase7.5V8GASGap .040; Without high energy ignition
1973OldsmobileCutlassS5.7V8GASGap .040
1973OldsmobileCutlassBase5.7V8GASGap .040
1973OldsmobileCutlassS7.5V8GASGap .040
1973OldsmobileCutlassBase7.5V8GASGap .040
1973OldsmobileCutlass SupremeBase7.5V8GASGap .040
1973OldsmobileCutlass SupremeBase5.7V8GASGap .040
1973OldsmobileDelta 88Royale7.5V8GASGap .040; Without high energy ignition
1973OldsmobileDelta 88Base7.5V8GASGap .040; Without high energy ignition
1973OldsmobileDelta 88Royale7.5V8GASGap .040; Without high energy ignition
1973OldsmobileDelta 88Base7.5V8GASGap .040; Without high energy ignition
1973OldsmobileDelta 88Royale5.7V8GASGap .040
1973OldsmobileDelta 88Base5.7V8GASGap .040
1973OldsmobileOmegaBase5.7V8GASGap .040
1973OldsmobileToronadoBrougham7.5V8GASGap .040; Without high energy ignition
1973OldsmobileToronadoBase7.5V8GASGap .040; Without high energy ignition
1973OldsmobileVista CruiserBase5.7V8GASGap .040
1973OldsmobileVista CruiserBase7.5V8GASGap .040
1972Oldsmobile98Base7.5V8GASGap .040
1972Oldsmobile98Base7.5V8GASGap .040
1972OldsmobileCustom CruiserBase7.5V8GASGap .040
1972OldsmobileCustom CruiserBase7.5V8GASGap .040
1972OldsmobileCutlassS7.5V8GASGap .040
1972OldsmobileCutlassBase7.5V8GASGap .040
1972OldsmobileCutlassCruiser7.5V8GASGap .040
1972OldsmobileCutlassS5.7V8GASGap .040 | Engine VIN: H; | Engine VIN: K; | Engine VIN: R;
1972OldsmobileCutlassBase5.7V8GASGap .040 | Engine VIN: H; | Engine VIN: K; | Engine VIN: R;
1972OldsmobileCutlassCruiser5.7V8GASGap .040 | Engine VIN: H; | Engine VIN: K; | Engine VIN: R;
1972OldsmobileCutlassCruiser5.7V8GASGap .040
1972OldsmobileCutlass SupremeBase7.5V8GASGap .040
1972OldsmobileCutlass SupremeBase5.7V8GASGap .040 | Engine VIN: H; | Engine VIN: K; | Engine VIN: R;
1972OldsmobileDelta 88Royale7.5V8GASGap .040
1972OldsmobileDelta 88Royale7.5V8GASGap .040
1972OldsmobileDelta 88Base7.5V8GASGap .040
1972OldsmobileDelta 88Royale5.7V8GASGap .040 | Engine VIN: H; | Engine VIN: K; | Engine VIN: R;
1972OldsmobileDelta 88Base5.7V8GASGap .040 | Engine VIN: H; | Engine VIN: K; | Engine VIN: R;
1972OldsmobileDelta 88Base7.5V8GASGap .040
1972OldsmobileF85Base5.7V8GASGap .040 | Engine VIN: H; | Engine VIN: K; | Engine VIN: R;
1972OldsmobileF85Base7.5V8GASGap .040
1972OldsmobileToronadoBrougham7.5V8GASGap .040
1972OldsmobileToronadoBase7.5V8GASGap .040
1972OldsmobileVista CruiserBase7.5V8GASGap .040
1972OldsmobileVista CruiserBase5.7V8GASGap .040 | Engine VIN: H; | Engine VIN: K; | Engine VIN: R;
1971DodgeChallengerBase6.3V8GASGap .035
1971DodgeChallengerR/T6.3V8GASGap .035
1971DodgeChargerSpecial Edition6.3V8GASGap .035
1971DodgeChargerR/T6.3V8GASGap .035
1971DodgeChargerBase6.3V8GASGap .035
1971DodgeChargerSuper Bee6.3V8GASGap .035
1971DodgeCharger5006.3V8GASGap .035
1971DodgeCoronetCrestwood6.3V8GASGap .035
1971DodgeCoronetBrougham6.3V8GASGap .035
1971DodgeCoronetCustom6.3V8GASGap .035
1971DodgeCoronetBase6.3V8GASGap .035
1971DodgeMonacoBase6.3V8GASGap .035
1971DodgePolaraCustom6.3V8GASGap .035
1971DodgePolaraBrougham6.3V8GASGap .035
1971DodgePolaraBase6.3V8GASGap .035
1971PlymouthBarracudaBase6.3V8GASGap .035
1971PlymouthBarracudaGran Coupe6.3V8GASGap .035
1971PlymouthCudaBase6.3V8GASGap .035
1971PlymouthFurySport Suburban6.3V8GASGap .035
1971PlymouthFurySport6.3V8GASGap .035
1971PlymouthFuryCustom Suburban6.3V8GASGap .035
1971PlymouthFurySuburban6.3V8GASGap .035
1971PlymouthFury IBase6.3V8GASGap .035
1971PlymouthFury ISuburban6.3V8GASGap .035
1971PlymouthFury IIBase6.3V8GASGap .035
1971PlymouthFury IIIBase6.3V8GASGap .035
1971PlymouthGTXBase6.3V8GASGap .035
1971PlymouthSatelliteSebring6.3V8GASGap .035
1971PlymouthSatelliteCustom6.3V8GASGap .035
1971PlymouthSatelliteBase6.3V8GASGap .035
1971PlymouthSatelliteBrougham6.3V8GASGap .035
1971PlymouthSatelliteSebring Plus6.3V8GASGap .035
1971PlymouthSatelliteRegent6.3V8GASGap .035
1971Oldsmobile442Base7.5V8GASGap .040
1971Oldsmobile98Base7.5V8GASGap .040
1971OldsmobileCustom CruiserBase7.5V8GASGap .040
1971OldsmobileCutlassBase7.5V8GASGap .040
1971OldsmobileCutlassS7.5V8GASGap .040
1971OldsmobileCutlassS5.7V8GASGap .040
1971OldsmobileCutlassBase5.7V8GASGap .040
1971OldsmobileCutlass SupremeBase5.7V8GASGap .040
1971OldsmobileCutlass SupremeBase7.5V8GASGap .040
1971OldsmobileDelta 88Custom7.5V8GASGap .040
1971OldsmobileDelta 88Custom5.7V8GASGap .040
1971OldsmobileDelta 88Royale7.5V8GASGap .040
1971OldsmobileDelta 88Base5.7V8GASGap .040
1971OldsmobileDelta 88Base7.5V8GASGap .040
1971OldsmobileDelta 88Royale5.7V8GASGap .040
1971OldsmobileF85Base5.7V8GASGap .040
1971OldsmobileToronadoBase7.5V8GASGap .040
1971OldsmobileToronadoBrougham7.5V8GASGap .040
1971OldsmobileVista CruiserBase5.7V8GASGap .040
1971OldsmobileVista CruiserBase7.5V8GASGap .040
1971PontiacBonnevilleBase6.6V8GASGap .035
1971PontiacBonnevilleBase5.7V8GASGap .035
1971PontiacCatalinaBrougham6.6V8GASGap .035
1971PontiacCatalinaBase5.7V8GASGap .035
1971PontiacCatalinaBase6.6V8GASGap .035
1971PontiacCatalinaBrougham5.7V8GASGap .035
1971PontiacCatalinaSafari6.6V8GASGap .035
1971PontiacCatalinaSafari5.7V8GASGap .035
1971PontiacFirebirdBase6.6V8GASGap .035
1971PontiacFirebirdFormula7.5V8GASGap .035
1971PontiacFirebirdBase5.7V8GASGap .035
1971PontiacFirebirdEsprit7.5V8GASGap .035
1971PontiacFirebirdTrans Am6.6V8GASGap .035
1971PontiacFirebirdTrans Am5.7V8GASGap .035
1971PontiacFirebirdBase7.5V8GASGap .035
1971PontiacFirebirdEsprit5.7V8GASGap .035
1971PontiacFirebirdEsprit6.6V8GASGap .035
1971PontiacFirebirdFormula5.7V8GASGap .035
1971PontiacFirebirdTrans Am7.5V8GASGap .035
1971PontiacFirebirdFormula6.6V8GASGap .035
1971PontiacGrand PrixBase6.6V8GASGap .035
1971PontiacGrand SafariBase5.7V8GASGap .035
1971PontiacGrand SafariBase6.6V8GASGap .035
1971PontiacGrand SafariBase7.5V8GASGap .035
1971PontiacGTOBase7.5V8GASGap .035
1971PontiacGTOBase6.6V8GASGap .035
1971PontiacGTOThe Judge7.5V8GASGap .035
1971PontiacLeMansBase7.5V8GASGap .035
1971PontiacLeMansBase6.6V8GASGap .035
1971PontiacLeMansSport5.7V8GASGap .035
1971PontiacLeMansBase5.7V8GASGap .035
1971PontiacLeMansSport6.6V8GASGap .035
1971PontiacLeMansT377.5V8GASGap .035
1971PontiacLeMansT375.7V8GASGap .035
1971PontiacLeMansSport7.5V8GASGap .035
1971PontiacLeMansT376.6V8GASGap .035
1971PontiacVenturaBase5.7V8GASGap .035
1970DodgeChallengerBase6.3V8GASGap .035
1970DodgeChallengerR/T6.3V8GASGap .035
1970DodgeChargerBase6.3V8GASGap .035
1970DodgeCharger5006.3V8GASGap .035
1970DodgeChargerR/T6.3V8GASGap .035
1970DodgeCoronetSuper Bee6.3V8GASGap .035
1970DodgeCoronetBase6.3V8GASGap .035
1970DodgeCoronet5006.3V8GASGap .035
1970DodgeCoronet4406.3V8GASGap .035
1970DodgeCoronetDeluxe6.3V8GASGap .035
1970DodgeCoronetR/T6.3V8GASGap .035
1970DodgeMonacoBase6.3V8GASGap .035
1970DodgePolaraCustom6.3V8GASGap .035
1970DodgePolaraBase6.3V8GASGap .035
1970PlymouthBarracudaBase6.3V8GASGap .035
1970PlymouthBarracudaGran Coupe6.3V8GASGap .035
1970PlymouthBelvedereBase6.3V8GASGap .035
1970PlymouthBelvedereSatellite6.3V8GASGap .035
1970PlymouthCudaBase6.3V8GASGap .035
1970PlymouthFuryCustom Suburban6.3V8GASGap .035
1970PlymouthFurySport Suburban6.3V8GASGap .035
1970PlymouthFurySuburban6.3V8GASGap .035
1970PlymouthFurySport6.3V8GASGap .035
1970PlymouthFuryS-236.3V8GASGap .035
1970PlymouthFury IBase6.3V8GASGap .035
1970PlymouthFury IIBase6.3V8GASGap .035
1970PlymouthFury IIIBase6.3V8GASGap .035
1970PlymouthSatelliteSport6.3V8GASGap .035
1970ChevroletBel AirBase5.7V8GASGap .035
1970ChevroletBel AirBase6.6V8GASGap .035
1970ChevroletBiscayneBase5.7V8GASGap .035
1970ChevroletBiscayneBase6.6V8GASGap .035
1970ChevroletBrookwoodBase6.6V8GASGap .035
1970ChevroletBrookwoodBase5.7V8GASGap .035
1970ChevroletCamaroRS5.7V8GASGap .035
1970ChevroletCamaroBase5.7V8GASGap .035
1970ChevroletCamaroZ285.7V8GASGap .035
1970ChevroletCamaroBase5.0V8GASGap .035
1970ChevroletCamaroRS5.0V8GASGap .035
1970ChevroletCamaroSS5.7V8GASGap .035
1970ChevroletCapriceBase6.6V8GASGap .035
1970ChevroletCapriceBase5.7V8GASGap .035
Product info

The ACDelco spark plug is designed to deliver reliable and consistent ignition that allows your engine to reach its peak performance in all conditions of use. With ACDelco, you’re getting improved spark plug lifespan, better combustion, optimized fuel economy, as well as fewer emissions.

The R45S spark plug is specifically built to meet the needs of Buick, Cadillac, Checker, Chevrolet, Chrysler, Dodge, Dual-Ghia, Facel Vega, Fargo, GMC, Kurtis, Oldsmobile, Plymouth, Pontiac vehicles, ensuring optimal fit and performance characteristics that perfectly match your engine’s requirements.

Using quality replacement spark plugs is a good way to keep your engine running smoothly. ACDelco offers that, and much more! Over the years, they’ve become one of the leading authorities in the world of ignition systems with a strong track record of innovation. As a result, many carmakers from all around the world have chosen this brand as OEM for their engines. Give your car the ACDelco makeover it needs, and enjoy years of care-free driving!

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
Center Electrode Core MaterialCopper
Center Electrode Tip MaterialNickel
Ground Electrode Core MaterialNickel-Alloy
Ground Electrode Quantity1
Hex Size13/16
Manufacturer Heat Range5
Pre-Gap Size0.04
Reach0.37
Resistance2-20
Resistor TypeYes
Seat TypeGasket
Thread Diameter0.55
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.

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