- Part Number: 603-142
- Est. Ship Time: Usually Ships in 1-2 Business Days

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Fits: 2007.5-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LMM
Pressurized Coolant Reservoir;
This replacement engine coolant reservoir is manufactured from quality materials to withstand the stresses of underhood heat and engine vibration. It is engineered and manufactured to match the fit and function of the original part.
Direct replacement - this engine coolant reservoir matches the fit and function of the original part
Ideal solution - engineered for a seamless installation
Durable construction - manufactured from quality materials to withstand underhood heat and vibration
Trustworthy design - backed by 100 years of automotive aftermarket experience.
Heat and engine vibration can damage plastic overtime causing cracks and leaks. Dorman's Engine Coolant Recovery Tank uses premium plastic to withstand the effects of stress generated by the engine compartment. It is thoroughly tested to ensure performance and long lasting quality over time.
Dorman: 603-142
