Dorman 603-758 Engine Coolant Reservoir Mounting Plate

Dorman 603-758 Engine Coolant Reservoir Mounting Plate

Dorman 603-758 is an engine coolant reservoir mounting plate built to match the fit and function of the original plate on specified BMW applications. This black plastic reservoir mounting bracket supports secure coolant reservoir mounting for BMW Z4, 325Ci, 330Ci, 320i, 325i, 325xi, 330i, 330xi, 323Ci, 323i, 328Ci, and 328i models.

Key Features

• Direct replacement engine coolant reservoir mounting plate for specified BMW applications
• Black plastic construction for OE-style fit and function
• Measures 18.625 inches long and 8.313 inches wide
• Three mounting holes for factory-style attachment points
• No cooling connector included
• Cross-references Genuine 17111436251 and Rein EPP0149 for the same application

Product Details

This Dorman coolant reservoir mounting plate is engineered to match the original plate used on select BMW cooling systems. Part number 603-758 is designed for reliable performance and durability, making it a practical replacement when the original reservoir bracket is cracked, warped, or no longer holds the tank securely. It is a direct-fit solution for BMW Z4 and BMW 3 Series applications across multiple model years.

Vehicle Fitment

• Fits 2003-2008 BMW Z4, N/A
• Fits 2001-2006 BMW 325Ci, N/A
• Fits 2001-2006 BMW 330Ci, N/A
• Fits 2001-2005 BMW 320i, N/A
• Fits 2001-2005 BMW 325i, N/A
• Fits 2001-2005 BMW 325xi, N/A
• Fits 2001-2005 BMW 330i, N/A
• Fits 2001-2005 BMW 330xi, N/A
• Fits 2000 BMW 323Ci, N/A
• Fits 1999-2000 BMW 323i, N/A
• Fits 2000 BMW 328Ci, N/A
• Fits 1999-2000 BMW 328i, N/A

Common Replacement Reasons

• Broken or cracked coolant reservoir mounting plate
• Loose reservoir mounting at factory attachment points
• Damaged plastic bracket from heat or age
• Reservoir support issues during cooling system repair
• Need for an OE-style replacement on BMW cooling components

Installation Notes

Verify the vehicle year, model, and cooling system layout before installation. Use the existing mounting locations and confirm the reservoir seats correctly against the bracket. This part number is 603-758, and the replacement should be checked against the original plate dimensions and hole pattern before final assembly.

Quality Assurance

Dorman designs this reservoir mounting plate to match original fit and function on specified applications. Part number 603-758 is built as a replacement for the factory-style BMW coolant reservoir bracket used in the listed fitments.