SKP SK603334 Engine Coolant Reservoir - Front

Overview

The SKP SK603334 engine coolant reservoir is a direct-fit replacement for select BMW cooling system applications. It is built for drivers replacing a cracked, leaking, or discolored expansion tank and is listed for multiple BMW 1 Series, 3 Series, X1, and Z4 fitments.

Compatible With BMW cooling system applications, this reservoir supports proper coolant storage and system recovery in vehicles such as the BMW 120i, 328i, and Z4. The SK603334 part number is also referenced by Dorman OE Solutions 603-334 for the same application.

Key Features

• Engine coolant reservoir for BMW cooling system service
• Direct-fit replacement format for listed applications
• Fits multiple BMW models across 2005-2016 coverage
• Cross-references Dorman OE Solutions 603-334
• SK603334 part number for easy identification

Detailed Description

The SKP SK603334 is an engine coolant reservoir designed for select BMW vehicles with front or N/A-listed fitment positions depending on application. It is used in cooling system repair when the original reservoir is damaged, leaking, or no longer holds coolant properly. Fitment includes BMW 120i, 118i, X1, 125i, 128i, 323i, 325i, 328i, 328i xDrive, 328xi, 330i, 330xi, 335i, 335i xDrive, 335is, 335xi, 130i, 1 Series M, and Z4 applications.

This part number, SK603334, should be matched to the vehicle listing before ordering. For BMW 328i, BMW 325i, and BMW Z4 cooling system repairs, the reservoir provides a replacement option for the original expansion tank assembly.

Common Uses

• Replacing a cracked coolant reservoir
• Addressing coolant loss from reservoir leaks
• Restoring proper coolant storage in the cooling system
• Repairing a damaged or aging expansion tank

Installation Notes

Verify year, model, and listed position before installation. This part is cataloged for front and N/A positions across the fitment table, so the vehicle listing should be checked carefully against the application. Professional installation is recommended for cooling system repairs to ensure the system is filled and bled correctly after replacement.

Quality Assurance

SKP replacement parts are cataloged for application-specific fitment, and this reservoir is referenced against OE-style interchange numbers for the listed BMW applications. Confirm the SK603334 part number and vehicle fitment before installation.