Auxiliary Water Pump with Heater Valve - E39 540i M5, E38 740i/il

Source of unwanted hot air blowing through the vents

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Price:
$471.07

The Auxiliary Water Pump is an electric pump that helps carry coolant through the E39 528i/540i and E38 740i cylinder head, heating system, and heater core. It's like an electric valve that regulates coolant flow. If your E38 or E39 heater is suddenly acting up - blowing hot air or no air unexpectedly - this valve is one of the likely causes (the other being the Final Stage Unit). It's also the source of coolant leaks as the plastic connectors become fragile over time.

This is the Genuine BMW replacement Auxiliary Water Pump with Heater Valve and fits the E39 528i/540i (1997-2003), E39 M5 (2000-2003), and E38 740i/740il (3/1996 to 2001). 

Replaces the following BMW part numbers:
64118374994 (64-11-8-374-994)
64118372004 (64-11-8-372-004)
64118391796 (64-11-8-391-796)

For full BMW fitment information or for assistance from one of our BMW experts, we recommend calling us at 877-639-9648.

BMW Fitments:

5 Series
E39 (97-03) > 528i 97-98
E39 (97-03) > 528i 99-00
E39 (97-03) > 540i
E39 (97-03) > M5 (00-03)
7 Series
E38 (95-01) > 740i
E38 (95-01) > 740iL
E38 (95-01) > 750iL
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