Dorman OE Solutions Pressurized Coolant Reservoir for 2006-2015 Mercedes-Benz Models 603-256

Pressurized coolant reservoir for 2006-2015 Mercedes-Benz vehicles designed to replace cracked or leaking factory expansion tanks.

Built to meet the manufacturer's design intent for reliable service, this unit is constructed from quality materials capable of withstanding underhood heat and engine vibration while maintaining proper system pressure.

Key Features

• Direct replacement for original equipment part numbers including 1645000049
• Engineered to match OE form, fit, and function
• Constructed from durable materials resistant to thermal stress
• Validated through testing for daily driving demands
• Manufactured by Dorman with over 100 years of aftermarket experience

Benefits

• Restores proper coolant capacity and system pressurization
• Prevents overheating caused by leaks or tank failure
• Ensures a smooth installation with no modification required
• Reduces the risk of repeat repairs compared to worn components
• Provides a trustworthy solution backed by extensive industry knowledge
• Helps maintain optimal engine operating temperature

Application

Ideal for Mercedes-Benz owners experiencing coolant loss, visible cracks in the factory tank, or failed pressure tests who need a dependable direct-fit replacement.

Fitment Notes

• Compatible with select 2006-2015 Mercedes-Benz models
• Verify specific vehicle fitment using part number 603-256 before purchase
• Replaces Mercedes-Benz OEM numbers 164500004928 and 210501061564

Why Choose Dorman - OE Solutions?

• Dorman parts are engineered as direct-fit replacements designed to match OE form, fit, and function
• Built with quality materials and validated through testing to stand up to daily driving demands
• Offers a smart way to restore your vehicle with confidence in fit and durability

What's in the Box

• 1 Pressurized Coolant Reservoir

Item Dimensions

• 11.9in x 10.1in x 6.9in
• Weight: 1.8lbs