GMB 115-3170 Engine Water Pump
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GMB

GMB 115-3170 Engine Water Pump

Brand GMB 115-3170
Pulley Included Yes
Mounting Hardware Included 1 rubber gasket, 3 bolts, 1 pulley
Hub Height 2.63
Impeller Material Plastic
Impeller Rotation Standard
Water Pump Drive Type Serpentine belt
Casting Material Aluminum
Hub Diameter (in) 2.05
Pulley Type Serpentine belt
Fits BMW · 44 vehicles

OE-spec replacement. Built to meet or exceed OEM specifications for the listed cooling system applications.

Pulley included. Supplied with a pulley for a more complete pump service.

Serpentine drive design. Uses a serpentine belt drive with a standard-rotation plastic impeller.

Cross-references 11518638026 for the same application. See all 1.

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Engine Water Pump for BMW Applications

This GMB engine water pump is built to meet or exceed OEM specifications for BMW cooling system service. Part number 115-3170 is a pump-only replacement with a pulley included, making it a direct service part for select BMW 230i, 330i, 430i, 530i, X3, and X4 applications.

Key Features

  • Meets or exceeds OEM specifications for fit and function.
  • Includes a pulley for a complete pump assembly service.
  • Aluminum casting supports durable cooling system construction.
  • Plastic impeller with standard rotation for the specified application.
  • Serpentine belt drive and serpentine belt pulley type.
  • Mounting hardware listed in the product attributes.

Detailed Description

GMB part number 115-3170 is an engine water pump engineered for BMW cooling system replacement where the original pump has worn, leaked, or lost efficiency. The aluminum housing, plastic impeller, and standard rotation design match the requirements of the listed applications, while the included pulley supports a straightforward pump service. This part cross-references BMW 11518638026 for the same application.

Compatible BMW coverage includes Fits 2017-2021 BMW 230i, N/A; Fits 2017-2021 BMW 230i xDrive, N/A; Fits 2017-2020 BMW 430i, N/A; Fits 2017-2020 BMW 430i Gran Coupe, N/A; Fits 2017-2020 BMW 430i xDrive, N/A; Fits 2017-2020 BMW 430i xDrive Gran Coupe, N/A; Fits 2017-2020 BMW 530i, N/A; Fits 2017-2019 BMW 330i GT xDrive, N/A; Fits 2017-2019 BMW 530i xDrive, N/A; Fits 2018-2019 BMW X3, N/A; Fits 2018-2019 BMW X4, N/A; Fits 2017-2018 BMW 330i, N/A; Fits 2017-2018 BMW 330i xDrive, N/A.

What It Helps Address

  • Coolant circulation problems caused by a worn water pump.
  • Leaks from a failing pump housing or seal area.
  • Overheating concerns tied to reduced coolant flow.
  • Noisy or inefficient pump operation in the cooling system.
  • Service replacement needs for the listed BMW models.

Installation Notes and Tips

Verify the part number, pulley style, drive type, and impeller rotation before installation. Confirm the vehicle application against the fitment list and inspect the belt drive components, gasket surface, and cooling system condition during service. Use the listed fitment notes to confirm pump-only coverage for the correct BMW application.

Quality Assurance

GMB manufactures this water pump to meet or exceed OEM specifications, supporting consistent replacement quality for the specified BMW applications. Part number 115-3170 is also referenced by BMW 11518638026.

Related reading

This part fits 44 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersNotes
2021BMW230i2.0LL4Pump Only
2021BMW230i xDrive2.0LL4Pump Only
2020BMW230i2.0LL4Pump Only
2020BMW230i xDrive2.0LL4Pump Only
2020BMW430i2.0LL4Pump Only
2020BMW430i Gran Coupe2.0LL4Pump Only
2020BMW430i xDrive2.0LL4Pump Only
2020BMW430i xDrive Gran Coupe2.0LL4Pump Only
2020BMW530i2.0LL4Pump Only
2019BMW230i2.0LL4Pump Only
2019BMW230i xDrive2.0LL4Pump Only
2019BMW330i GT xDrive2.0LL4Pump Only
2019BMW430i2.0LL4Pump Only
2019BMW430i Gran Coupe2.0LL4Pump Only
2019BMW430i xDrive2.0LL4Pump Only
2019BMW430i xDrive Gran Coupe2.0LL4Pump Only
2019BMW530i2.0LL4Pump Only
2019BMW530i xDrive2.0LL4Pump Only
2019BMWX32.0LL4Pump Only
2019BMWX42.0LL4Pump Only
2018BMW230i2.0LL4Pump Only
2018BMW230i xDrive2.0LL4Pump Only
2018BMW330i2.0LL4Pump Only
2018BMW330i GT xDrive2.0LL4Pump Only
2018BMW330i xDrive2.0LL4Pump Only
2018BMW430i2.0LL4Pump Only
2018BMW430i Gran Coupe2.0LL4Pump Only
2018BMW430i xDrive2.0LL4Pump Only
2018BMW430i xDrive Gran Coupe2.0LL4Pump Only
2018BMW530i2.0LL4Pump Only
2018BMW530i xDrive2.0LL4Pump Only
2018BMWX32.0LL4Pump Only
2018BMWX42.0LL4Pump Only
2017BMW230i2.0LL4Pump Only
2017BMW230i xDrive2.0LL4Pump Only
2017BMW330i2.0LL4Pump Only
2017BMW330i GT xDrive2.0LL4Pump Only
2017BMW330i xDrive2.0LL4Pump Only
2017BMW430i2.0LL4Pump Only
2017BMW430i Gran Coupe2.0LL4Pump Only
2017BMW430i xDrive2.0LL4Pump Only
2017BMW430i xDrive Gran Coupe2.0LL4Pump Only
2017BMW530i2.0LL4Pump Only
2017BMW530i xDrive2.0LL4Pump Only
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
11518638026