Dorman 603-535 | Front Engine Coolant Reservoir

Part Number

603-535

Direct-fit Dorman coolant reservoir for select BMWs. Engineered for durability, matching OEM quality to ensure optimal engine cooling system performance.

Fits what vehicles: 1999-2001 BMW 323i, 1999-2000 BMW 328i, 2000 BMW 323Ci, 2000 BMW 323ti, 2000 BMW 328Ci, 2001-2005 BMW 320i, 2001-2006 BMW 325Ci, 2001-2006 BMW 325i, 2001-2005 BMW 325xi, 2001-2006 BMW 330Ci, 2001-2005 BMW 330i, 2001-2005 BMW 330xi, 2001-2006 BMW X5, 2004-2011 BMW X3, 2010-2011 BMW X1

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Product Information

Description

Upgrade your BMW's cooling system with the Dorman 603-535 Front Engine Coolant Reservoir. Known for reliability and durability, this pressurized reservoir is designed to match the fit and function of your vehicle’s original part, ensuring seamless integration. Crafted from high-quality materials, it’s built to withstand the harsh underhood environment, resisting both heat and vibration.Troubles with coolant leaks or frequent overheating may indicate a failing coolant reservoir. With the Dorman 603-535, enjoy easy installation and peace of mind knowing you've chosen a component backed by over a century of automotive innovation. Whether you’re a DIY enthusiast or a seasoned mechanic, this product offers the perfect combination of quality, performance, and value. For enhanced performance, consider pairing it with compatible overflow tanks and hoses available at PartsHawk.com.

Features

Direct replacement for seamless installation
Durable plastic resists heat and vibration
Includes cap and level sensor
Ensures optimal engine cooling performance
Backed by Dorman's century of experience

Specifications

Material:	Plastic
Color:	Black
Pressurized:	Yes
Cap Included:	Yes
Cap Maximum Pressure Rating:	30 PSI
Level Sensor Included:	Yes
Dimensions:	17.300 in. x 5.700 in. x 5.800 in.
Weight:	2.7000 lbs
Fitment:	BMW 320i, 323Ci, 323i, X3, X5, etc.

Interchange

TechSmart: S49002
BMW: 17117573781
BMW: 17111742231
Spectra Premium: FRT1901C
BMW: 17117639022
BMW: 17137787039
Rein: EPK0018
URO Parts: 17137787039
Rein: EPT0018
BMW: 17132247553
Standard Motor Products: FRT1901C
Ultra-Power Auto Parts: 603535
BMW: 17111436413
(Unknown): SK603535

Fitment

1999-2001 BMW 323i | Position: Front
2000 BMW 323ti | Position: Front
2001-2006 BMW 325Ci | Position: Front
2001-2005 BMW 325xi | Position: Front
2001-2006 BMW 330Ci | Position: Front
2001-2005 BMW 330i | Position: Front
2004-2011 BMW X3 | Position: Front
2010-2011 BMW X1 | Position: Front
1999-2000 BMW 328i | Position: Front
2000 BMW 323Ci | Position: Front
2000 BMW 328Ci | Position: Front
2001-2005 BMW 320i | Position: Front
2001-2006 BMW 325i | Position: Front
2001-2005 BMW 330xi | Position: Front
2001-2006 BMW X5 | Position: Front

Product Questions (3)

Customer Questions

Can I use Dorman parts to replace OEM parts?

Yes, Dorman parts can often be used as replacements for OEM parts, but it is important to carefully compare specifications and ensure compatibility.

How do I install Dorman shift linkage bushing?

To install a Dorman shift linkage bushing, first locate the old bushing and remove it if necessary. Apply lubricant to the Dorman bushing and slide it onto the shift linkage, tapping it into place with a soft tool until fully seated. Check the alignment and function of the shift linkage after installation.

Where is Dorman manufactured?

Dorman is a global automotive parts supplier with manufacturing facilities in the United States, Mexico, Canada, China, and India. Its headquarters and largest manufacturing facility are located in Colmar, Pennsylvania, USA.