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Please, add your first item to the wishlist

Select vehicle to confirm fitment

Engine Coolant Reservoir – Front

PART#: 603-100
Dorman - OE Solutions

$18.99

In stock

Interchanges
BrandPart #
General Motors15650373
General Motors15630112
Fitments
YearMakeModelSubmodelEngineFuel TypePositionNote
2000CadillacEscaladeBase5.7V8GASFront
2000ChevroletC2500Base5.7V8GASFrontV8 350CID 5.7L
2000ChevroletC2500Base6.5V8DIESELFrontV8 350CID 5.7L
2000ChevroletC2500LS6.5V8DIESELFrontV8 350CID 5.7L
2000ChevroletC2500LS5.7V8CNGFrontV8 350CID 5.7L
2000ChevroletC2500LS7.4V8GASFrontV8 350CID 5.7L
2000ChevroletC2500Base7.4V8GASFrontV8 350CID 5.7L
2000ChevroletC2500LS5.7V8GASFrontV8 350CID 5.7L
2000ChevroletC2500Base5.7V8CNGFrontV8 350CID 5.7L
2000ChevroletC3500Base7.4V8GASFront
2000ChevroletC3500Base5.7V8GASFront
2000ChevroletC3500LS5.7V8GASFront
2000ChevroletC3500LS7.4V8GASFront
2000ChevroletK2500LS7.4V8GASFront
2000ChevroletK2500Base5.7V8GASFront
2000ChevroletK2500Base7.4V8GASFront
2000ChevroletK2500LS5.7V8GASFront
2000ChevroletK3500LS7.4V8GASFront
2000ChevroletK3500Base7.4V8GASFront
2000ChevroletK3500LS5.7V8GASFront
2000ChevroletK3500Base5.7V8GASFront
2000ChevroletTahoeLimited5.7V8GASFront
2000ChevroletTahoeZ715.7V8GASFront
2000GMCC2500Sierra SL5.7V8GASFront
2000GMCC2500Sierra SLT7.4V8GASFront
2000GMCC2500Sierra SLE5.7V8GASFront
2000GMCC2500Sierra SL5.7V8CNGFront
2000GMCC2500Sierra SLT5.7V8GASFront
2000GMCC2500Sierra SLT5.7V8CNGFront
2000GMCC2500Sierra SLE5.7V8CNGFront
2000GMCC2500Sierra SL7.4V8GASFront
2000GMCC2500Sierra SLE7.4V8GASFront
2000GMCC3500Sierra SLE5.7V8GASFront
2000GMCC3500Sierra SL7.4V8GASFront
2000GMCC3500Sierra SLE7.4V8GASFront
2000GMCC3500Sierra SLT5.7V8GASFront
2000GMCC3500Sierra SL5.7V8GASFront
2000GMCC3500Sierra SLT7.4V8GASFront
2000GMCK2500Sierra SLE5.7V8GASFront
2000GMCK2500Sierra SL7.4V8GASFront
2000GMCK2500Sierra SL5.7V8GASFront
2000GMCK2500Sierra SLE7.4V8GASFront
2000GMCK2500Sierra SLT7.4V8GASFront
2000GMCK2500Sierra SLT5.7V8GASFront
2000GMCK3500Sierra SLT5.7V8GASFront
2000GMCK3500Sierra SLT7.4V8GASFront
2000GMCK3500Sierra SL5.7V8GASFront
2000GMCK3500Sierra SLE7.4V8GASFront
2000GMCK3500Sierra SL7.4V8GASFront
2000GMCK3500Sierra SLE5.7V8GASFront
2000GMCYukonDenali5.7V8GASFront
1999CadillacEscaladeBase5.7V8GASFront
1999ChevroletC1500LS5.0V8GASFrontV6 262CID 4.3L (4300cc)
1999ChevroletC1500LS5.7V8GASFrontV6 262CID 4.3L (4300cc)
1999ChevroletC1500 SuburbanBase5.7V8GASFront
1999ChevroletC1500 SuburbanLS5.7V8GASFront
1999ChevroletC1500 SuburbanLT5.7V8GASFront
1999ChevroletC2500Base5.7V8GASFront
1999ChevroletC2500LS5.7V8GASFront
1999ChevroletC2500LS5.0V8GASFront
1999ChevroletC2500Base5.0V8GASFront
1999ChevroletC2500Base5.7V8CNGFront
1999ChevroletC2500Base7.4V8GASFront
1999ChevroletC2500LS5.7V8CNGFront
1999ChevroletC2500LS7.4V8GASFront
1999ChevroletC2500 SuburbanLS7.4V8GASFront
1999ChevroletC2500 SuburbanBase7.4V8GASFront
1999ChevroletC2500 SuburbanBase5.7V8GASFront
1999ChevroletC2500 SuburbanLS5.7V8GASFront
1999ChevroletC3500Base5.7V8CNGFront
1999ChevroletC3500LS5.7V8GASFront
1999ChevroletC3500LS5.7V8CNGFront
1999ChevroletC3500Base5.7V8GASFront
1999ChevroletC3500Base7.4V8GASFront
1999ChevroletC3500LS7.4V8GASFront
1999ChevroletK1500LS5.0V8GASFront
1999ChevroletK1500LS5.7V8GASFront
1999ChevroletK1500 SuburbanBase5.7V8GASFront
1999ChevroletK1500 SuburbanLT5.7V8GASFront
1999ChevroletK1500 SuburbanLS5.7V8GASFront
1999ChevroletK2500LS5.7V8GASFront
1999ChevroletK2500LS7.4V8GASFront
1999ChevroletK2500Base5.7V8GASFront
1999ChevroletK2500Base7.4V8GASFront
1999ChevroletK2500 SuburbanBase5.7V8GASFront
1999ChevroletK2500 SuburbanBase7.4V8GASFront
1999ChevroletK2500 SuburbanLS5.7V8GASFront
1999ChevroletK2500 SuburbanLS7.4V8GASFront
1999ChevroletK3500LS7.4V8GASFront
1999ChevroletK3500Base7.4V8GASFront
1999ChevroletK3500Base5.7V8GASFront
1999ChevroletK3500LS5.7V8GASFront
1999ChevroletTahoeLT5.7V8GASFront
1999ChevroletTahoeLS5.7V8GASFront
1999ChevroletTahoeBase5.7V8GASFront
1999GMCC1500Sierra SLE5.0V8GASFront
1999GMCC1500Sierra SLT5.7V8GASFront
1999GMCC1500Sierra SL5.0V8GASFront
1999GMCC1500Sierra SLE5.7V8GASFront
1999GMCC1500Sierra SLT5.0V8GASFront
1999GMCC1500Sierra SL5.7V8GASFront
1999GMCC1500 SuburbanBase5.7V8GASFront
1999GMCC1500 SuburbanSLT5.7V8GASFront
1999GMCC1500 SuburbanSLE5.7V8GASFront
1999GMCC2500Sierra SLE5.7V8GASFront
1999GMCC2500Sierra SL5.7V8GASFront
1999GMCC2500Sierra SLE5.7V8CNGFront
1999GMCC2500Sierra SLE7.4V8GASFront
1999GMCC2500Sierra SLT7.4V8GASFront
1999GMCC2500Sierra SL5.7V8CNGFront
1999GMCC2500Sierra SLE5.0V8GASFront
1999GMCC2500Sierra SLT5.0V8GASFront
1999GMCC2500Sierra SLT5.7V8GASFront
1999GMCC2500Sierra SLT5.7V8CNGFront
1999GMCC2500Sierra SL7.4V8GASFront
1999GMCC2500Sierra SL5.0V8GASFront
1999GMCC2500 SuburbanSLT7.4V8GASFront
1999GMCC2500 SuburbanSLE7.4V8GASFront
1999GMCC2500 SuburbanSLE5.7V8GASFront
1999GMCC2500 SuburbanBase5.7V8GASFront
1999GMCC2500 SuburbanBase7.4V8GASFront
1999GMCC2500 SuburbanSLT5.7V8GASFront
1999GMCC3500Sierra SLE7.4V8GASFront
1999GMCC3500Sierra SLE5.7V8GASFront
1999GMCC3500Sierra SLT7.4V8GASFront
1999GMCC3500Sierra SL7.4V8GASFront
1999GMCC3500Sierra SLE5.7V8CNGFront
1999GMCC3500Sierra SLT5.7V8GASFront
1999GMCC3500Sierra SLT5.7V8CNGFront
1999GMCC3500Sierra SL5.7V8CNGFront
1999GMCC3500Sierra SL5.7V8GASFront
1999GMCK1500Sierra SLT5.0V8GASFront
1999GMCK1500Sierra SL5.0V8GASFront
1999GMCK1500Sierra SLE5.7V8GASFront
1999GMCK1500Sierra SLE5.0V8GASFront
1999GMCK1500Sierra SLT5.7V8GASFront
1999GMCK1500Sierra SL5.7V8GASFront
1999GMCK1500 SuburbanSLE5.7V8GASFront
1999GMCK1500 SuburbanBase5.7V8GASFront
1999GMCK1500 SuburbanSLT5.7V8GASFront
1999GMCK2500Sierra SLE5.7V8GASFront
1999GMCK2500Sierra SLT7.4V8GASFront
1999GMCK2500Sierra SL7.4V8GASFront
1999GMCK2500Sierra SL5.7V8GASFront
1999GMCK2500Sierra SLE7.4V8GASFront
1999GMCK2500Sierra SLT5.7V8GASFront
1999GMCK2500 SuburbanSLT7.4V8GASFront
1999GMCK2500 SuburbanSLE5.7V8GASFront
1999GMCK2500 SuburbanBase7.4V8GASFront
1999GMCK2500 SuburbanSLE7.4V8GASFront
1999GMCK2500 SuburbanBase5.7V8GASFront
1999GMCK2500 SuburbanSLT5.7V8GASFront
1999GMCK3500Sierra SLT7.4V8GASFront
1999GMCK3500Sierra SLE7.4V8GASFront
1999GMCK3500Sierra SL7.4V8GASFront
1999GMCK3500Sierra SLT5.7V8GASFront
1999GMCK3500Sierra SL5.7V8GASFront
1999GMCK3500Sierra SLE5.7V8GASFront
1999GMCYukonDenali5.7V8GASFront
1999GMCYukonSLT5.7V8GASFront
1999GMCYukonSLE5.7V8GASFront
1998ChevroletC1500WT4.3V6GASFront
1998ChevroletC1500Cheyenne5.0V8GASFront
1998ChevroletC1500Silverado4.3V6GASFront
1998ChevroletC1500Silverado5.0V8GASFront
1998ChevroletC1500Cheyenne5.7V8GASFront
1998ChevroletC1500Silverado5.7V8GASFront
1998ChevroletC1500WT5.7V8GASFront
1998ChevroletC1500Cheyenne4.3V6GASFront
1998ChevroletC1500WT5.0V8GASFront
1998ChevroletC1500 SuburbanLS5.7V8GASFront
1998ChevroletC1500 SuburbanBase5.7V8GASFront
1998ChevroletC2500WT5.0V8GASFront
1998ChevroletC2500Silverado5.0V8GASFront
1998ChevroletC2500WT5.7V8GASFront
1998ChevroletC2500Cheyenne5.7V8CNGFront
1998ChevroletC2500WT5.7V8CNGFront
1998ChevroletC2500Silverado5.7V8GASFront
1998ChevroletC2500Cheyenne7.4V8GASFront
1998ChevroletC2500Cheyenne5.7V8GASFront
1998ChevroletC2500WT7.4V8GASFront
1998ChevroletC2500Cheyenne5.0V8GASFront
1998ChevroletC2500Silverado5.7V8CNGFront
1998ChevroletC2500Silverado7.4V8GASFront
1998ChevroletC2500 SuburbanBase7.4V8GASFront
1998ChevroletC2500 SuburbanBase5.7V8GASFront
1998ChevroletC2500 SuburbanLS5.7V8GASFront
1998ChevroletC2500 SuburbanLS7.4V8GASFront
1998ChevroletC3500Silverado5.7V8CNGFront
1998ChevroletC3500Cheyenne7.4V8GASFront
1998ChevroletC3500Cheyenne5.7V8CNGFront
1998ChevroletC3500Cheyenne5.7V8GASFront
1998ChevroletC3500Silverado5.7V8GASFront
1998ChevroletC3500Silverado7.4V8GASFront
1998ChevroletK1500Silverado5.7V8GASFront
1998ChevroletK1500WT5.0V8GASFront
1998ChevroletK1500Silverado5.0V8GASFront
1998ChevroletK1500WT4.3V6GASFront
1998ChevroletK1500Silverado4.3V6GASFront
1998ChevroletK1500Cheyenne5.7V8GASFront
1998ChevroletK1500Cheyenne4.3V6GASFront
1998ChevroletK1500Cheyenne5.0V8GASFront
1998ChevroletK1500WT5.7V8GASFront
1998ChevroletK1500 SuburbanBase5.7V8GASFront
1998ChevroletK1500 SuburbanLS5.7V8GASFront
1998ChevroletK2500Cheyenne5.0V8GASFront
1998ChevroletK2500Cheyenne7.4V8GASFront
1998ChevroletK2500Silverado5.0V8GASFront
1998ChevroletK2500Cheyenne5.7V8GASFront
1998ChevroletK2500WT7.4V8GASFront
1998ChevroletK2500Silverado7.4V8GASFront
1998ChevroletK2500WT5.7V8GASFront
1998ChevroletK2500Silverado5.7V8GASFront
1998ChevroletK2500WT5.0V8GASFront
1998ChevroletK2500 SuburbanBase5.7V8GASFront
1998ChevroletK2500 SuburbanBase7.4V8GASFront
1998ChevroletK2500 SuburbanLS5.7V8GASFront
1998ChevroletK2500 SuburbanLS7.4V8GASFront
1998ChevroletK3500Cheyenne5.7V8GASFront
1998ChevroletK3500Cheyenne7.4V8GASFront
1998ChevroletK3500Silverado5.7V8GASFront
1998ChevroletK3500Silverado7.4V8GASFront
1998ChevroletTahoeBase5.7V8GASFront
1998ChevroletTahoeLT5.7V8GASFront
1998ChevroletTahoeLS5.7V8GASFront
1998GMCC1500Sierra SL5.0V8GASFront
1998GMCC1500Sierra SLE5.7V8GASFront
1998GMCC1500Sierra SL5.7V8GASFront
1998GMCC1500Sierra Special4.3V6GASFront
1998GMCC1500Sierra SLE5.0V8GASFront
1998GMCC1500Sierra Special5.7V8GASFront
1998GMCC1500Sierra SLT5.7V8GASFront
1998GMCC1500Sierra SL4.3V6GASFront
1998GMCC1500Sierra SLE4.3V6GASFront
1998GMCC1500Sierra SLT5.0V8GASFront
1998GMCC1500Sierra SLT4.3V6GASFront
1998GMCC1500Sierra Special5.0V8GASFront
1998GMCC1500 SuburbanSLT5.7V8GASFront
1998GMCC1500 SuburbanSLE5.7V8GASFront
1998GMCC1500 SuburbanBase5.7V8GASFront
1998GMCC2500Sierra SL7.4V8GASFront
1998GMCC2500Sierra SLT5.7V8CNGFront
1998GMCC2500Sierra SL5.0V8GASFront
1998GMCC2500Sierra SL5.7V8CNGFront
1998GMCC2500Sierra SLE5.7V8CNGFront
1998GMCC2500Sierra SLE5.7V8GASFront
1998GMCC2500Sierra SLT5.0V8GASFront
1998GMCC2500Sierra SLE7.4V8GASFront
1998GMCC2500Sierra SL5.7V8GASFront
1998GMCC2500Sierra SLE5.0V8GASFront
Product info

The Dorman – OE Solutions Engine Coolant Reservoir part number 603-100 is a high-quality replacement part, designed to fit seamlessly into your Cadillac, Chevrolet or GMC. It is also compatible with other part numbers 15630112 and 15650373, making it a versatile choice for those in need of a coolant reservoir replacement.

This part is constructed from durable materials and is engineered to meet or exceed OEM specifications, ensuring reliable performance and a long lifespan. The translucent plastic allows for easy monitoring of coolant levels, ensuring that your engine stays properly cooled and protected against overheating.

Replacing a damaged or worn coolant reservoir with this Dorman – OE Solutions part will prevent coolant leaks and ensure that your engine stays at the optimal operating temperature. It is a cost-effective solution that is easy to install, with no modifications necessary.

Overall, the Dorman – OE Solutions Engine Coolant Reservoir part number 603-100 is a reliable and affordable replacement option that will keep your Cadillac, Chevrolet or GMC running smoothly for years to come.

About Dorman - OE Solutions

When looking for car aftermarket parts, Dorman OE Solutions is known for its dedication to quality, new ideas, and dependability. The company Dorman has been around for a long time, and they have always provided OE-quality parts that meet or beat industry standards. No matter how small the parts are or how complicated the systems are, Dorman OE Solutions has a wide range of products that are designed to keep your car running at its best.

At Newparts.com, we're proud to be an official seller of Dorman OE Solutions parts. In addition to Dorman OE Solutions parts for the engine, transmission, suspension, and electrical systems, we have a huge variety of exterior and interior accessories. It doesn't matter what your vehicle needs; Dorman is dedicated to providing reliable solutions that boost both speed and durability.

One important benefit of shopping at Newparts.com is that we always give customers cheap access to parts that aren't being used. Knowing how expensive it can be to keep cars in good shape and fix them when they break down, we try to offer reasonable prices on all Dorman parts. When you buy from us, you can save a lot of money without losing quality.

Along with having low prices, we put customer satisfaction first by sending all Dorman products out quickly. We understand how important time is when it comes to car repairs, so we work hard to make sure your orders get to you on time. Whether you're changing an old part or adding the newest innovations from Dorman to your car, you can count on us to get your parts to you quickly and easily. Reach out to us via phone. Call us now at 855-505-2886 and our customer service team will help you.

Check out how parts from Dorman OE Solutions can improve your car's speed and dependability. Every time you shop at Newparts.com, you can be sure of getting the best value, quality, and ease of use. Feel good about shopping. Find out why tens of thousands of drivers trust Dorman with all their car needs.

Specifications
California Proposition 65WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov
Cap IncludedYes
Cap TypeFlip Top
ColorWhite
MaterialPlastic
Mounting Brackets IncludedYes
Mounting Hardware IncludedNo
Mounting Hole Quantity3
Package Contents1 Coolant Reservoir; 1 Cap
PressurizedNo
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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