Dorman HD Solutions Heavy Duty Pressurized Coolant Reservoir for 2024-2025 Mack and Volvo Trucks 603-5505

Heavy duty pressurized coolant reservoir for 2024 to 2025 Mack and Volvo trucks used to replace cracked or leaking factory 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 engine vibration while maintaining proper system pressure.

Key Features

• Direct replacement for original equipment coolant reservoirs
• Constructed from durable materials resistant to thermal stress
• Engineered to match OE form, fit, and function
• Designed to handle heavy duty pressurized cooling systems
• Validated through testing for daily driving demands

Benefits

• Restores proper coolant capacity and system pressure
• Reduces the risk of repeat repairs caused by inferior parts
• Ensures a smoother installation with direct fit mounting
• Prevents overheating issues associated with cracked tanks
• Provides long lasting performance in demanding conditions
• Backed by over 100 years of automotive aftermarket experience

Application

Ideal for fleet managers and owner operators of late model Mack and Volvo heavy duty trucks requiring a trustworthy fix for failed or damaged coolant expansion tanks.

Fitment Notes

• Compatible with select 2024 to 2025 Mack truck models
• Compatible with select 2024 to 2025 Volvo truck models
• Replaces Volvo part numbers 20968839, 20900982, 20881604, 22061288, 21074569, 22564835, 21074555, 21314359, 23915461, 22564837, 22061290, 21513975, 23059017, 21038101, 21067134, 23059030
• Replaces Mack part numbers 23911823, 21846997, 22061290

Why Choose Dorman - HD Solutions?

• Dorman parts are engineered as direct-fit replacements designed to match OE specifications
• Strong focus on fit, durability, and dependable performance
• Built with quality materials to stand up to daily driving demands
• A smart way to restore your vehicle with confidence

What's in the Box

• 1 Coolant Reservoir

Item Dimensions

• Length: 35.8 inches
• Width: 15.2 inches
• Height: 17.2 inches
• Weight: 12.9 lbs