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GENUINE BMW N42 N46 OIL DIPSTICK O-RING 11437529257
Overview
Genuine BMW O-ring (14.5x3.0mm) for BMW VANOS solenoid/oil dipstick seal. BMW OEM part number 11437529257. Supersedes 11437509343.
- Dimensions: 14.5mm inner diameter x 3.0mm cross section
- Critical sealing component for VANOS system / oil level indicator
- Replace during VANOS service or if oil leak detected
Compatible Vehicles (per RealOEM):
- BMW 1 Series — E87 (2005–2007)
- BMW 3 Series — E46 (2000–2006), E90/E91 (2004–2008)
- BMW X3 — E83, E83 LCI (2003–2010)
- BMW Z4 — E85 (2004–2008)
Engine Compatibility: N42, N46 (4-cylinder petrol)
BMW Part Numbers:
- 11 43 7 529 257 (primary)
- 11 43 7 509 343 (superseded)
Shipping & returns
Shipping: Orders placed before 12pm ship same day from our Australian warehouse. Express & standard options at checkout.
Returns: 14-day returns on any part that doesn’t fit or you no longer need. A 20% restocking fee applies. Original packaging required. Start a return from your account.
Parts warranty: Used parts — 3 months, unlimited km. New parts — 6 months, unlimited km. Some listings may specify a different period, which will be noted in the ad. This is a parts warranty only and does not cover labour or fitting. Full terms on our Returns & Warranty policy.
* Product descriptions are written with AI assistance and may contain errors
