Dorman Engine Coolant Reservoir Pressurized with Thermostat for 1999-2011 BMW 603-535

Engine coolant reservoir replacement for 1999-2011 BMW by Dorman - OE Solutions.

Built to meet the manufacturer’s design intent for reliable service.

Key Features

• Pressurized design matching OEM specifications
• Includes thermostat for temperature regulation
• Mounting clip for secure installation
• Reservoir cap with seal for leak prevention
• Coolant level sensor for accurate monitoring

Benefits

• Reduces risk of coolant leaks and engine overheating
• Provides a complete repair kit in one package
• Easy to install, saving time on maintenance
• Durable construction ensures long-lasting performance
• Maintains vehicle reliability during daily driving

Application

This part is ideal for BMW owners experiencing coolant leaks or needing a replacement reservoir during engine maintenance.

Fitment Notes

• 1999-2011 BMW models

Why Choose Dorman - OE Solutions?

• Choosing Dorman aftermarket replacement parts is a smart way to restore your vehicle with confidence, thanks to a strong focus on fit, durability, and dependable performance. Dorman parts are engineered as direct-fit replacements designed to match OE form, fit, and function, helping ensure a smoother installation and reliable results. Built with quality materials and validated through testing, they’re made to stand up to daily driving demands and help reduce the risk of repeat repairs. For a long-lasting fix you can trust, Dorman delivers proven aftermarket solutions that keep your vehicle operating the way it should.

What’s in the Box

• 1 PC

Item Dimensions

• Dimensions: 17.4in x 5.8in x 5.9in, Weight: 2.8lbs