Dorman HD Solutions Engine Coolant Reservoir for 2007-2008 Mack CV GU7 GU8 603-5501

Non-pressurized engine coolant reservoir for 2007-2008 Mack CV GU7 and GU8 trucks used to replace cracked or leaking factory overflow tanks.

Built to meet the manufacturer's design intent for reliable service, this unit is constructed from quality materials engineered to withstand underhood heat and constant engine vibration without failing.

Key Features

• Direct replacement for original equipment part numbers including Mack 25133601
• Non-pressurized design matches specific Mack heavy duty cooling systems
• Manufactured from durable materials resistant to thermal stress
• Engineered to replicate OE form, fit, and function
• Validated through testing to ensure long-term performance

Benefits

• Restores proper coolant capacity to prevent engine overheating
• Eliminates leaks caused by cracked or brittle plastic tanks
• Reduces the risk of repeat repairs with robust construction
• Ensures a smooth installation with direct-fit mounting points
• Provides a trustworthy solution backed by extensive aftermarket experience

Application

Ideal for fleet managers and owner-operators of Mack CV, GU7, and GU8 models requiring a dependable fix for failed coolant expansion tanks.

Fitment Notes

• Fits 2007-2008 Mack CV models
• Fits 2008 Mack GU7 and GU8 models
• Compatible with non-pressurized cooling system configurations

Why Choose Dorman - HD Solutions?

• Dorman parts are engineered as direct-fit replacements designed to match OE form, fit, and function for smoother installation.
• Built with quality materials and validated through testing to stand up to daily driving demands.
• Backed by over 100 years of automotive aftermarket experience and a focus on durability.

What's in the Box

• 1 Engine Coolant Reservoir

Item Dimensions

• 11.9in x 8.3in x 9.1in
• Weight: 1.3lbs