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Old 12-29-2011, 03:30 AM   #11
Demon Eyes Kyo
Registered User
Join Date: Aug 2005
Location: Irvine
Posts: 142
My Ride: 2001 330i
It's better to use automotive O-rings as they are rated for higher temps than the generic O-rings at Lowe's / Home Depot for general plumbing use.

The Lower Radiator Hose Aux Fan Temp Sensor o-ring is BMW p/n 13621743299

It's the same O-ring used for the IAT (Intake Air Temperature) sensor located in the intake manifold.,

Autohausaz sells it for $1.27 USD

RealOEM refers to the O-ring as #4
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