Original BMW Coolant Pump with Support for BMW 230i, 330i, 430i, 530i, X3, X4, and Z4 (2019–2024)

On B46 and B48 four-cylinder BMWs, this Original BMW coolant pump with support pushes coolant through the engine, radiator, and heater circuits to hold operating temperature. It fits the 230i, 330i, 430i, 530i, X3, X4, and Z4 from 2019–2024. A water pump is the heart of the cooling loop, so a weak or leaking pump affects every part of the system it serves. BMW supplies this unit as a complete pump mounted on its support. It weighs 2.6 kg, which is about 5.8 lb.

Original BMW Parts carry a 24-month parts warranty.

Production of this pump began in July 2018, in step with the arrival of the G-series four-cylinder cars. BMW's parts data ties it to the B46D and B48D engines in the G20 3 Series, the G30 and G31 5 Series, the G01 X3, the G02 X4, and the G29 Z4. The pump is made in Italy and is sold as a single assembly.

Technical Details

• Manufacturer: BMW (genuine part)
• Part number: 11-51-8-650-988
• BMW part name: coolant pump with support
• Weight: 2.6 kg (5.8 lb)
• Production start: July 2018
• Engine family: B46D and B48D four-cylinder
• Made in Italy
• Sold as one assembly
• Warranty: 24 months on Original BMW Parts

Common Questions

Does this pump fit my X3 M40i or M340i?
No. BMW applies this pump to B46 and B48 four-cylinder models only, so six-cylinder versions need a different part.

Is the support included with the pump?
Yes. BMW supplies the pump and its support together as one assembly.

A genuine BMW pump keeps the cooling system on the factory specification it left the plant with.

Fitment & Compatibility

Use the fitment table below to confirm the exact year, make, model, submodel, and any application notes before ordering. Send your VIN and PMB Performance will confirm the fit, drawing on more than 20 years in the trade.