Cracked, missing, or worn out the original cap on your coolant recovery tank? Seal it back up with the Dorman - HELP Engine Coolant Reservoir Cap 82597, a direct-fit replacement reverse-engineered from the factory cap. It caps the coolant recovery/reservoir tank to keep coolant contained and dirt and debris out of the system, and it drops in as an application-specific replacement across a wide range of GM trucks, SUVs, vans and cars — including the 2013-2017 Buick Enclave, 2002-2009 Cadillac Escalade, 2005-2017 Chevrolet Equinox, 1999-2012 Chevrolet Malibu, 2000-2009 Chevrolet Tahoe, 1999-2009 GMC Sierra 1500, 2001-2009 GMC Yukon, 2005-2010 Pontiac G6 and 2002-2010 Saturn Vue. See the Buyer's Guide tab for the complete list of 76 applications.
- Direct replacement: steps in for a cracked or lost original coolant reservoir cap.
- Application specific: made to match the reservoir-cap dimensions on the listed vehicle years, makes and models.
- Seamless fit: reverse-engineered from the original equipment to seat correctly.
- Great value: a quick, easy fix for less than a trip back to the dealer.
Interchange: RC98 · RC0147 · 31532 · 15066786 · 15075118 · 22652695 · 22671020 · T46 · 10248 · GM0613020
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What does this cap do?
It seals the engine coolant recovery/reservoir tank, keeping coolant contained and preventing dirt and debris from entering the tank on the listed applications.
Is this a direct replacement?
Yes. The 82597 is reverse-engineered from the original equipment and made application-specific to match the reservoir cap on the listed vehicle years, makes and models.
Will this fit my vehicle?
It fits 76 applications, including many GM trucks, SUVs, vans and cars from Buick, Cadillac, Chevrolet, GMC, Oldsmobile, Pontiac and Saturn. Check the Buyer's Guide tab to confirm your vehicle.
What are the signs my coolant reservoir cap needs replacing?
Common signs include a cracked, brittle, or missing cap, coolant seepage around the tank opening, or difficulty keeping the cap secured.
What numbers does this cap interchange with?
It replaces RC98, RC0147, 31532, 15066786, 15075118, 22652695, 22671020, T46, 10248 and GM0613020.
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