Bevinsee Billet Aluminum Engine Oil Filler Cap – Premium Drop-In Upgrade for BMW E36, E46, E90, E92 & Z4
Replace your fragile plastic BMW oil filler cap with this precision-engineered Bevinsee billet aluminum upgrade. Factory plastic caps become brittle, crack, and leak over time. This CNC-machined aluminum replacement delivers durability, a refined motorsport aesthetic, and genuine performance. Simple snap-on installation — no tools required.
Premium Aircraft-Grade Construction:
- Billet 6061-T6 Aluminum: Superior strength and heat resistance vs. factory plastic that deteriorates under engine bay conditions
- CNC-Machined Precision: Manufactured to exacting tolerances ensuring perfect fitment and zero oil seepage
- Anodized Surface: Enhanced corrosion and UV resistance ensures lasting aesthetics even under extreme heat
- Lightweight Design: Minimal weight addition with maximum durability benefits
Drop-In Fitment — No Modifications Required:
- Factory-Compatible Design: Replaces OEM caps (part numbers 11127550054, 11127550054 and others) without modifications
- Snap-On Installation: Works exactly like factory — remove old cap, install new one
- Perfect Sealed Closure: Engineered to maintain optimal oil pressure and prevent sludge contamination
- Premium Appearance: Transforms engine bay aesthetics while maintaining OEM functionality
Complete BMW Compatibility (Official Bevinsee Specs):
- BMW 3 Series E36 (1992-1998): 323i, 325i, 328i, M3, 318i, 320i
- BMW 3 Series E46 (1998-2005): 318i, 320i, 323i, 325i, 328i, 330i, M3
- BMW 3 Series E90/E91/E92/E93 (2004-2013): 323i, 325i, 328i, 330i, 335i, M3
- BMW Z4 E85/E86/E89 (2002-2016): 2.0i, 2.5i, 3.0i, M, sDrive, M40i
- Plus: Select E81, E82, E87, E88, 1-Series models
Technical Specifications:
- Condition: Brand New
- Type: Engine Oil Filler Cap
- Material: Billet 6061-T6 Aluminum
- Processing: CNC-Machined
- Surface Finish: Anodized
- Colors: 3 available options
- Package: 1x Cap
Installation Tips:
- Remove factory plastic cap by twisting counterclockwise
- Install new Bevinsee cap by twisting clockwise until snug
- Do not over-tighten — hand-tight is sufficient
- Compatible with all standard BMW engine oils (synthetic, mineral, or semi-synthetic)
Why Upgrade From Factory Plastic?
- Durability: Billet aluminum won't crack or become brittle like plastic caps do
- Heat Resistance: Engineered to withstand extreme engine bay temperatures without degradation
- Visual Upgrade: Elevates engine bay aesthetics with a professional-grade finish
- Long-Lasting Investment: Outlasts multiple factory caps — installed once, decades of reliability
Complete Your Bevinsee Engine Bay Transformation: Pair with Bevinsee magnetic oil filter caps, coolant caps, washer fluid caps, and A/C line caps to create a coordinated, professional-grade engine bay upgrade package.
Trusted by BMW Enthusiasts Worldwide: Bevinsee has been the European benchmark for precision-engineered BMW performance parts for 15+ years. Every component undergoes rigorous quality testing and manufacturing standards. Fast, reliable shipping from our performance specialist.
Not sure which hardness to choose? View our Strongflex Color & Hardness Guide to find out which bushing suits your driving style and vehicle setup.