SKP SK603973 Engine Coolant Reservoir - Front

Name: SKP SK603973 Engine Coolant Reservoir - Front
Brand: SKP
SKU: GQLW-SK603973
Price: 51.01 USD
Availability: InStock

Front

107 vehicles fit this part

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OE Direct Replacement — Bolt-on fit, no modifications needed

Fitment: Cadillac, Chevrolet, and GMC, Cheyenne, Escalade, Escalade ESV, Sierra, Sierra 1500, Sierra 1500 Limited, Silverado 1500, Silverado 1500 LD, Silverado 2500, Suburban 3500 HD, Tahoe, Yukon, and Yukon XL

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Engine Coolant Reservoir for GM Trucks and SUVs

Restore proper coolant storage and level control with this SKP engine coolant reservoir, part number SK603973. It is built for front-mounted applications on select Cadillac, Chevrolet, and GMC models, including Silverado 1500, Tahoe, Yukon, and Escalade platforms.

SK603973 is made from heat-resistant materials and uses a translucent design with visible level markings for easier coolant checks. It is engineered to match OE specifications for fit and function, helping maintain a sealed cooling system on the vehicle.

Key Features

Engine coolant reservoir for front-position cooling system applications
Translucent body with clear level markings for fluid inspection
Heat-resistant construction for underhood use
OE-style fitment for straightforward installation
Direct replacement for select Cadillac Escalade, Chevrolet Silverado 1500, and GMC Yukon models

Detailed Description

This SKP coolant reservoir is a direct-fit replacement for vehicles that use a front-mounted expansion tank to store and regulate engine coolant. It helps maintain system pressure and provides a visible reservoir for monitoring coolant level during routine service. This part cross-references Dorman OE Solutions 603-973 for the same application. SK603973 is a practical replacement choice for Silverado 1500, Tahoe, Yukon, and Escalade cooling system service.

What It Helps Fix

Cracked or leaking coolant reservoir housing
Low coolant level caused by reservoir seepage
Difficulty checking coolant level through a damaged tank
Cooling system pressure loss from a worn reservoir
Replacement needs after heat-related plastic deterioration

Installation Notes

Verify the front-position fitment before installation and compare the original reservoir to SK603973 for hose routing, mounting points, and sensor openings. Transfer any reusable components from the original unit if required by the vehicle configuration. After installation, refill the cooling system with the correct coolant and inspect for leaks.

Quality Assurance

SKP coolant reservoirs are manufactured to meet or exceed OE specifications for fit and function. Part number SK603973 is built for dependable cooling system service on select GM applications.

This part fits 107 vehicles. Search below:

Year	Make	Model	Liters	Cylinders	Position
2020	Cadillac	Escalade	6.2L	V8	Front
2020	Cadillac	Escalade ESV	6.2L	V8	Front
2020	Chevrolet	Tahoe	5.3L	V8	Front
2020	GMC	Yukon	5.3L	V8	Front
2020	GMC	Yukon XL	5.3L	V8	Front
2019	Cadillac	Escalade	6.2L	V8	Front
2019	Cadillac	Escalade ESV	6.2L	V8	Front
2019	Chevrolet	Silverado 1500	5.3L	V8	Front
2019	Chevrolet	Silverado 1500	6.2L	V8	Front
2019	Chevrolet	Silverado 1500	4.3L	V6	Front
2019	Chevrolet	Silverado 1500 LD	5.3L	V8	Front
2019	Chevrolet	Suburban 3500 HD	6.0L	V8	Front
2019	Chevrolet	Tahoe	5.3L	V8	Front
2019	Chevrolet	Tahoe	6.2L	V8	Front
2019	GMC	Sierra 1500	5.3L	V8	Front
2019	GMC	Sierra 1500	6.2L	V8	Front
2019	GMC	Sierra 1500	4.3L	V6	Front
2019	GMC	Sierra 1500 Limited	5.3L	V8	Front
2019	GMC	Yukon	5.3L	V8	Front
2019	GMC	Yukon	6.2L	V8	Front
2019	GMC	Yukon XL	5.3L	V8	Front
2019	GMC	Yukon XL	6.2L	V8	Front
2018	Cadillac	Escalade	6.2L	V8	Front
2018	Cadillac	Escalade ESV	6.2L	V8	Front
2018	Chevrolet	Cheyenne	5.3L	V8	Front
2018	Chevrolet	Cheyenne	6.2L	V8	Front
2018	Chevrolet	Silverado 1500	5.3L	V8	Front
2018	Chevrolet	Silverado 1500	6.2L	V8	Front
2018	Chevrolet	Silverado 1500	4.3L	V6	Front
2018	Chevrolet	Silverado 2500	5.3L	V8	Front
2018	Chevrolet	Suburban 3500 HD	6.0L	V8	Front
2018	Chevrolet	Tahoe	5.3L	V8	Front
2018	GMC	Sierra	5.3L	V8	Front
2018	GMC	Sierra	6.2L	V8	Front
2018	GMC	Sierra 1500	5.3L	V8	Front
2018	GMC	Sierra 1500	6.2L	V8	Front
2018	GMC	Sierra 1500	4.3L	V6	Front
2018	GMC	Yukon	5.3L	V8	Front
2018	GMC	Yukon	6.2L	V8	Front
2018	GMC	Yukon XL	5.3L	V8	Front
2018	GMC	Yukon XL	6.2L	V8	Front
2017	Cadillac	Escalade	6.2L	V8	Front
2017	Cadillac	Escalade ESV	6.2L	V8	Front
2017	Chevrolet	Cheyenne	5.3L	V8	Front
2017	Chevrolet	Cheyenne	6.2L	V8	Front
2017	Chevrolet	Silverado 1500	5.3L	V8	Front
2017	Chevrolet	Silverado 1500	6.2L	V8	Front
2017	Chevrolet	Silverado 1500	4.3L	V6	Front
2017	Chevrolet	Silverado 2500	5.3L	V8	Front
2017	Chevrolet	Silverado 2500	4.3L	V6	Front
2017	Chevrolet	Suburban 3500 HD	6.0L	V8	Front
2017	Chevrolet	Tahoe	5.3L	V8	Front
2017	GMC	Sierra	5.3L	V8	Front
2017	GMC	Sierra	6.2L	V8	Front
2017	GMC	Sierra 1500	5.3L	V8	Front
2017	GMC	Sierra 1500	6.2L	V8	Front
2017	GMC	Sierra 1500	4.3L	V6	Front
2017	GMC	Yukon	5.3L	V8	Front
2017	GMC	Yukon	6.2L	V8	Front
2017	GMC	Yukon XL	5.3L	V8	Front
2017	GMC	Yukon XL	6.2L	V8	Front
2016	Cadillac	Escalade	6.2L	V8	Front
2016	Cadillac	Escalade ESV	6.2L	V8	Front
2016	Chevrolet	Cheyenne	5.3L	V8	Front
2016	Chevrolet	Cheyenne	6.2L	V8	Front
2016	Chevrolet	Silverado 1500	5.3L	V8	Front
2016	Chevrolet	Silverado 1500	6.2L	V8	Front
2016	Chevrolet	Silverado 1500	4.3L	V6	Front
2016	Chevrolet	Silverado 2500	5.3L	V8	Front
2016	Chevrolet	Suburban 3500 HD	6.0L	V8	Front
2016	Chevrolet	Tahoe	5.3L	V8	Front
2016	GMC	Sierra	5.3L	V8	Front
2016	GMC	Sierra	6.2L	V8	Front
2016	GMC	Sierra 1500	5.3L	V8	Front
2016	GMC	Sierra 1500	6.2L	V8	Front
2016	GMC	Sierra 1500	4.3L	V6	Front
2016	GMC	Yukon	5.3L	V8	Front
2016	GMC	Yukon	6.2L	V8	Front
2016	GMC	Yukon XL	5.3L	V8	Front
2016	GMC	Yukon XL	6.2L	V8	Front
2015	Cadillac	Escalade	6.2L	V8	Front
2015	Cadillac	Escalade ESV	6.2L	V8	Front
2015	Chevrolet	Cheyenne	5.3L	V8	Front
2015	Chevrolet	Cheyenne	6.2L	V8	Front
2015	Chevrolet	Silverado 1500	5.3L	V8	Front
2015	Chevrolet	Silverado 1500	4.3L	V6	Front
2015	Chevrolet	Silverado 1500	6.2L	V8	Front
2015	Chevrolet	Silverado 2500	5.3L	V8	Front
2015	Chevrolet	Tahoe	5.3L	V8	Front
2015	GMC	Sierra	5.3L	V8	Front
2015	GMC	Sierra	6.2L	V8	Front
2015	GMC	Sierra 1500	5.3L	V8	Front
2015	GMC	Sierra 1500	6.2L	V8	Front
2015	GMC	Sierra 1500	4.3L	V6	Front
2015	GMC	Yukon	5.3L	V8	Front
2015	GMC	Yukon	6.2L	V8	Front
2015	GMC	Yukon XL	5.3L	V8	Front
2015	GMC	Yukon XL	6.2L	V8	Front
2014	Chevrolet	Cheyenne	5.3L	V8	Front
2014	Chevrolet	Cheyenne	6.2L	V8	Front
2014	Chevrolet	Silverado 1500	5.3L	V8	Front
2014	Chevrolet	Silverado 1500	4.3L	V6	Front
2014	Chevrolet	Silverado 1500	6.2L	V8	Front
2014	Chevrolet	Silverado 2500	5.3L	V8	Front
2014	GMC	Sierra	5.3L	V8	Front
2014	GMC	Sierra	6.2L	V8	Front
2014	GMC	Sierra 1500	5.3L	V8	Front

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

1350235422856231603-973603973

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.