Cometic Gasket · New
Cometic BMW 135i/335i/X6/Z4 N54B30 85mm Bore .044in MLX Head Gasket
MPN C15257-044 · Store SKU cgsC15257-044
Supplier stock checked 11/8/2026, 2:29:48 AM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
Shipping & returns ↗This policy does not limit rights required by law.Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.
Product details
COMETIC MLX (Multi-Layer Stopper) gaskets utilize an integrated stopper layer for combustion chamber sealing and improved clamp load around the cylinder without increasing bore distortion. MLX technology can be found in some head gaskets and are made from the same materials as our MLS Head Gaskets. No sealants or re-torque required. MLX Gaskets utilize an integrated "stopper" layer for combustion chamber sealing BMW N54B30 .044in. MLX Cylinder Head Gasket; 85mm Bore BMW N54B30 .044" MLX Cylinder Head Gasket, 85mm Bore BMW N54B30 Cylinder Head Gasket
Manufacturer fitment & guides
- BMW N54B30
- Manufacturer-supplied application summary from Turn14; this may not be an exhaustive fitment list.
Part-specific notes
- California Proposition 65: Y