Electric Water Pump for BMW N54 Engine 64119147359 / 64116834917

OE Number

64119147359, 64116834917 (Replaces OEM 11517708801)

Fitment

BMW 1 Series (E81, E82, E87, E88), 3 Series (E90, E91, E92, E93)

Applicable Engine

N54 (3.0L Twin-Turbo Inline-6)

Type

Electric Water Pump (Secondary/Cabin Heating)

Function

Supplies coolant flow for the cabin heater core, ensuring rapid and efficient interior heating. It operates independently of the main mechanical water pump and is controlled by the vehicle's DME/DCAN system based on climate control settings.

Features

Premium quality replacement, high-performance electric motor, robust housing, and reliable sealing. This pump is a direct fit for the specified BMW models and engines.

Product Description

This high-performance Electric Water Pump is a direct replacement for BMW OE numbers 64119147359 and 64116834917. Designed specifically for the N54 engine platform, this pump is critical for the vehicle's heating system. It circulates hot coolant from the engine to the heater core, providing warmth to the passenger compartment. Common failure symptoms of the original pump include no heat from the vents or a "Heater Pump" fault code. This replacement unit is built to strict OEM specifications to ensure reliable operation and cabin comfort.

Installation Guide

Ensure the engine is cool and the battery is disconnected. Locate the electric water pump, typically situated near the rear of the cylinder head or on the firewall. Disconnect the electrical connector and coolant hoses. Remove the mounting bolts and the old pump. Clean the mating surface thoroughly. Install the new pump with new seals/O-rings (usually included). Reconnect hoses and the electrical plug. Refill the cooling system with the correct BMW antifreeze and bleed the air using the vehicle's diagnostic system or manual bleeding procedure.