Genuine OEM BMW N55/S55 Valve Cover Gasket Set (Rocker/Cam Cover) Fits M135i, 335i, 435i, 535i, 640i, X3/X4/X5/X6 35i, M2, M3, M4 OE 11127587804

Authentic BMW N55 S55 Cylinder Head Cover Seal Kit

Eliminate oily smells, drips and messy plug tube contamination with this authentic BMW cylinder head cover sealing kit for turbocharged straight six applications. This complete rocker cover seal pack sits between the top cover and the head to keep lubricant inside the valvetrain area and away from hot exhaust components and ignition hardware. It also refreshes the tube seals, helping prevent coil pack fouling and misfires caused by oil ingress.

Engineered by BMW for the N55 and S55 powerplants used across hot hatch, saloon, coupe and SAV platforms, including M135i, 335i, 435i, 535i, 640i, X3 35i, X4 35i, X5 35i, X6 35i and the S55 powered M2, M3 and M4. We run this kit on our own builds and our customers consistently report clean, leak free results once installed.

Why choose this BMW seal kit

• BMW engineered profile and composition for correct clamping and thermal stability
• Direct fitment on N55 and S55 camshaft covers for a lasting, factory grade seal
• Resists heat cycles and hardening to minimise weeping over time
• Ideal for daily use, tuned road cars and track work where reliability matters

What this fixes

• Oil mist or dampness around the rocker cover perimeter
• Burning oil odour from the bay after spirited driving
• Oil present in spark plug wells or around coil packs
• Top end seepage onto turbo or manifold heat shields
• Visible deterioration of the plastic cover or old seals

Vehicle coverage

Designed for BMW models equipped with N55 or S55 engines, including but not limited to:

• 1 Series: E82, E88, F20, F21 including M135i
• 2 Series: F22, F23, F87 M2
• 3 Series: E90 LCI, E91 LCI, E92 LCI, E93 LCI, F30, F31, F34 GT, F80 M3
• 4 Series: F32, F33, F36 Gran Coupe, F82 M4, F83 M4
• 5 Series: F07 GT, F10, F11
• 6 Series: F06 Gran Coupe, F12, F13
• 7 Series: F01 LCI, F02 LCI
• SAV and SAC: X1 E84, X3 F25, X4 F26, X5 E70 LCI and F15, X6 E71 and F16

If you would like us to verify your exact production date range, simply provide your UK reg or last 7 VIN characters at checkout and we will confirm fitment before dispatch.

Recommended while you are in there

For a complete refresh, replace the Valvetronic actuator gasket flange at the same time. This small seal is a common weep point and pairing it with this kit delivers the most reliable result.

Part number

BMW OE: 11127587804

Manufactured by

BMW

Professional fitting

Want it installed correctly first time with the correct torque sequence and sealant application where specified? Book expert fitting with MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a quote and availability.

Warranty

Two years manufacturer warranty for UK customers and one year manufacturer warranty for international customers when a compatible VIN is supplied at checkout.

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