AIRTEC Motorsport Oil Filter Housing Cap for BMW N20, N26, N51, N52, N54, N55, S55
Upgrade your BMW oil filter cap with the AIRTEC Motorsport billet aluminium oil filter housing cap. This is the high quality, UK engineered replacement for the weak OEM plastic cap that is known to become brittle, crack and leak over time. Perfect for routine oil services, performance builds and engine bay styling, this direct replacement oil filter cover improves reliability, looks and ease of maintenance on BMW N20, N26, N51, N52, N54, N55 and S55 engines.
Developed in house at AIRTEC HQ in the UK, the cap is machined from billet aluminium with intricate detailing, an engraved AIRTEC Motorsport logo and a durable anodised grey finish. It reuses your original O-ring, filter cage and filter element for a simple, secure fit. No special BMW tool is required for removal or installation, making oil changes faster and cleaner.
- Direct replacement oil filter housing cap for BMW N20, N26, N51, N52, N54, N55 and S55 engines
- Replaces BMW part number: 11427525334
- Machined from billet aluminium with anodised grey finish
- Engraved AIRTEC Motorsport branding for a premium engine bay look
- Stronger and more durable than the OEM plastic cap
- No special BMW tool required for removal or refit
- Reuses OEM O-ring, filter cage and filter element
Why upgrade your BMW oil filter cap
The factory plastic oil filter housing cap can become brittle, seize and crack, causing oil seepage and frustration during servicing. The AIRTEC Motorsport billet oil filter cover is a reliable performance upgrade and a smart preventative maintenance part. It makes oil changes easier, enhances engine bay aesthetics and provides long term durability for both daily driven and track driven BMWs. This is the oil filter cap upgrade BMW owners search for when they want a dependable alternative to the OEM plastic cap.
Compatibility
Fits the following BMW engines and models. If you are unsure, please check your engine code or contact us.
- N54 engines: 135i, 335i, 535i, Z4
- N55 engines: 135i, M135i, M235i, 335i, 435i, 535i, M2, Z4
- S55 engines: M2, M3, M4
- N51 and N52 engines: 125i, 128i, 130i, 323i, 325i, 330i, 523i, 525i, 528i, 530i, 630i, 730i, Z4
- N20 and N26 engines: 125i, 220i, 228i, 320i, 328i, 420i, 428i, 520i, 525i, Z4
Part number
Replaces BMW oil filter housing cap part number: 11427525334
Fitting and support
Easy to fit direct replacement. For professional installation and servicing, we recommend booking with Nforcd in Warwickshire. Request a fitting quote at Sales@nforcd.com.
Why buy from Nforcd
We run and recommend this AIRTEC Motorsport oil filter housing cap on our own and our customers’ BMWs. Feedback is consistently positive for build quality, fitment and the clean look in the engine bay. If you are searching for BMW oil filter cap upgrade, BMW billet oil filter cap, N54 oil filter housing cap, N55 oil filter cap, S55 oil filter cap or N20 oil filter housing cover, this is the premium solution that delivers reliability and style.