Genuine MINI Cooper S / JCW N14 Rocker Cover R55 R56 R57 R58 R59 – 11127646555

OEM Fitment | Factory Engine Breathing | Genuine Replacement

Product Description

This NEW genuine MINI engine cylinder head / rocker cover assembly is an original OEM component designed for MINI Cooper S and JCW models fitted with the N14 petrol engine.

The rocker cover is a critical engine component responsible for maintaining correct engine sealing while housing the crankcase ventilation (PCV) system. A failing rocker cover can lead to oil leaks, crankcase pressure issues, rough running, and PCV diaphragm faults.

This genuine replacement restores factory sealing, crankcase ventilation performance, and long-term reliability.

This part is shown as item number 1 in BMW MINI parts diagrams and is supplied brand new in genuine OEM condition.

⚠ N14 engine models only

Key Features

• NEW genuine MINI OEM part
• Complete engine cylinder head / rocker cover assembly
• Maintains correct engine sealing and PCV function
• Helps prevent oil leaks and crankcase pressure faults
• Direct replacement – no modifications required

Engine Compatibility

✔ N14 Petrol

❌ Not suitable for N12 / N16 / N18 / diesel models

Fitment

Compatible with BMW MINI N14 engine models:

• R55 Clubman Cooper S / JCW
• R56 Hatch Cooper S / JCW
• R57 Convertible Cooper S / JCW
• R58 Coupe JCW
• R59 Roadster JCW

Part Number

• BMW MINI Part Number: 11127646555

What’s Included

• 1 × Genuine MINI Engine Cylinder Head / Rocker Cover Assembly
(Part No. 11127646555)

Why We Recommend Genuine

At Sussex Parts Hub, we strongly recommend using genuine OEM components for critical engine parts such as rocker covers.

From our own experience working on road cars, track builds, and race cars, cheaper aftermarket alternatives often suffer from:

• Poor fitment
• Inferior sealing surfaces
• Premature gasket failure
• PCV system issues / diaphragm failures

For components like this, genuine OEM is the only option we recommend and use ourselves.

Important Information

• Genuine MINI OEM part
• Brand new condition
• N14 engine models only
• Please verify compatibility before purchase
• Message us with your REG or VIN for fitment confirmation