Installation Time
(approx) 15 Minutes
Difficulty Level:
Simple installation for anyone.
Installation Guides
No guide available for this part yet.
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Features, Description, Q&A, Specs & Installation
Upgraded Coolant Reservoir Performance. The Sinister Diesel Coolant Reservoir offers superior durability, cooling efficiency, and under-hood styling for your 2013 to 2015 6.6L Duramax Silverado 2500 HD. This reservoir is a direct drop-in replacement for the factory plastic tank, designed to improve heat dissipation and withstand the pressures of high-performance diesel engines. Featuring a sleek Sinister Blue powder-coated finish, it adds a custom look while providing better functionality.
Construction and Appearance. Built from TIG welded 6061 aircraft-grade aluminum, this coolant reservoir is engineered for strength, heat resistance, and corrosion protection. It is pressure tested to ensure leak-free performance and includes a built-in sight glass for quick and accurate coolant level checks. The blue powder-coated finish provides a signature Sinister Diesel aesthetic while adding extra protection against the elements.
Installation. Installation is easy and takes less than 30 minutes with basic hand tools. The reservoir uses factory mounting points and is compatible with the original cap, requiring no modifications for fitment.
Application. This Sinister Diesel Coolant Reservoir fits 2013 to 2015 GMC Silverado 2500 HD models equipped with the 6.6L Duramax diesel engine.
Sinister Diesel SD-DEGAS-LML-13
CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation Info
Installation Time
(approx) 15 Minutes
Difficulty Level:
Simple installation for anyone.
Installation Guides
No guide available for this part yet.
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