GMB 115-2090 Engine Water Pump

Engine Water Pump for BMW Applications

The GMB 115-2090 engine water pump is an OEM-standard replacement built to meet or exceed original equipment specifications. It is made from aluminum and includes a pre-installed O-ring for a clean sealing surface on select BMW cooling system repairs.

Compatible With BMW 320i, 323Ci, 323i, 323is, 325Ci, 325i, 325is, 325xi, 328Ci, 328i, 328is, 330Ci, 330i, 330xi, 525i, 525iT, 528i, 530i, M3, X3, X5, and Z3 applications across model years 1991-2006.

Key Features

• GMB part number 115-2090
• Engine water pump for BMW cooling system service
• OEM Standard item grade
• Aluminum construction
• Pre-installed O-ring included in the package contents
• New replacement part
• No gasket included
• No pulley included

Detailed Description

This GMB water pump is built for BMW cooling system maintenance where a direct-fit replacement is needed for the original pump assembly. The aluminum housing supports dependable fitment, while the pre-installed O-ring helps simplify sealing during installation. The 115-2090 is listed for a wide range of BMW models, including 325i, 330i, X5, and Z3 applications, as well as 525i and 530i primary pump applications.

This part cross-references Airtex AW9261 and Gates 18261 for the same application.

Common Repair Uses

• Coolant leakage from the water pump housing or seal area
• Overheating caused by a worn or failing pump
• Reduced coolant circulation through the engine
• Noisy operation from a deteriorated pump assembly
• Cooling system service on BMW 325Ci, 330i, and X5 models

Installation Notes and Tips

Verify vehicle fitment by year, model, and engine configuration before installation. Replace the pump during cooling system service when the original unit shows leakage, bearing wear, or circulation issues. Because gaskets are not included, confirm the required sealing components for your application before beginning the repair. The pre-installed O-ring is included with the pump.

Quality Assurance

GMB manufactures this water pump to meet or exceed OEM specifications, with OEM Standard grading for consistent replacement quality. Part number 115-2090 is a new component intended for BMW cooling system repairs where original-equipment-level fit and function are required.