Rein EPP0150 Engine Coolant Reservoir Mounting Plate

OE Quality Expansion Tank Mounting Plate

Rein EPP0150 is an OE-quality engine coolant reservoir mounting plate built for direct replacement on select BMW applications. It is made from virgin plastic to help maintain strength through repeated heat cycles and support a secure coolant reservoir mount.

Compatible With 1999-2006 BMW 323i, 323Ci, 328i, 328Ci, 320i, 325i, 325Ci, 325xi, 330i, 330Ci, and 330xi applications, this Rein mounting plate is designed for accurate fitment and dependable service.

• Produced from virgin plastic meeting or exceeding OE material specifications
• Resists cracking and wear caused by heat cycling
• Direct-fit design supports straightforward installation
• Built to strict engineering standards for material quality and tolerances
• Helps maintain proper expansion tank mounting and cooling system integrity

Detailed Product Overview

The Rein EPP0150 expansion tank mounting plate is engineered as a replacement for the original coolant reservoir support used on select BMW 3 Series models. By using virgin plastic instead of regrind material, the plate is built to better withstand thermal stress and long-term underhood exposure. This helps preserve the mounting point for the expansion tank and supports stable cooling system operation. This part cross-references Genuine 17111436250 for the same application.

Common Problems This Part Can Address

• Cracked or weakened expansion tank mounting plate
• Loose coolant reservoir support
• Heat-cycle damage to plastic mounting components
• Coolant loss related to reservoir movement or poor retention
• Fitment issues from worn OE-style mounting hardware surfaces

Installation Notes and Tips

Verify the vehicle’s cooling system layout and compare the original mounting plate before installation. Clean the mounting area, inspect the expansion tank and surrounding brackets for wear, and transfer any required components from the original setup since installation hardware is not included. Confirm proper alignment so the reservoir seats securely without stress on the plastic.

Quality Assurance

Rein manufactures this mounting plate to OE-quality standards with attention to material selection and dimensional accuracy. The use of virgin plastic is intended to improve durability and reduce cracking risk in high-heat cooling system environments.