URO 17137516004 Engine Coolant Reservoir Cap

BMW Coolant Reservoir Cap Replacement

This URO engine coolant reservoir cap is a direct-fit replacement for select BMW cooling systems that use the thinner-cap design. Built to match OE cap dimensions, it supports proper sealing on original and aftermarket coolant recovery tanks.

Use URO part number 17137516004 when replacing a worn or leaking BMW coolant reservoir cap on applications such as the BMW 525i, 530i, 550i, M5, M6, X5, and X6.

Key Features

• Precision-molded to OE cap dimensions for correct fitment
• Made for original and aftermarket coolant recovery tanks
• Heat-resistant cap and seal materials for cooling system service
• Factory pressure-tested for fit and sealing performance
• 24 Month Unlimited Mileage Warranty

Detailed Description

URO 17137516004 is an engine coolant reservoir cap designed for BMW vehicles that require the thinner-cap style. It is engineered to match the original cap profile so the reservoir can maintain the proper seal under normal cooling system pressure and temperature changes. This makes it a practical replacement for BMW 528i, 535i, 750i, 760Li, M3, M4, X5, and X6 models listed in the fitment data.

This part cross-references Dorman OE Solutions 603-351 for the same application.

What It Helps Address

• Coolant loss from a cap that no longer seals correctly
• Pressure retention issues in the coolant recovery tank
• Cracked, warped, or heat-aged reservoir cap materials
• Warning lights or overheating concerns related to low coolant level
• Fitment problems when replacing an OE-style thinner cap

Installation Notes and Tips

Verify the reservoir uses the thinner-cap design before installation. Inspect the tank neck and sealing surface for damage, and replace the cap only after the cooling system has cooled completely. Confirm the cap seats fully and locks in place without binding.

Compatible With BMW 525i, 530i, 550i, M5, M6, X5, X6, and other listed BMW applications from 2004-2015. Part number 17137516004 is also referenced by BMW OE number 17 13 7 516 004.

Quality Assurance

This URO coolant reservoir cap is factory pressure-tested and backed by a 24 Month Unlimited Mileage Warranty.