BMW Valve Cover 11127588412 – Genuine BMW Cylinder Head Cover
Product Description
The Genuine BMW Valve Cover 11127588412 is a replacement cylinder head cover designed for selected BMW petrol engines, particularly BMW models equipped with the N20 2.0L turbocharged engine.
Also known as a rocker cover, cylinder head cover or engine valve cover, BMW OE 11127588412 is written as 11 12 7 588 412. The cover forms the upper enclosure of the cylinder head and incorporates the crankcase ventilation system on applicable N20 applications.
The valve cover is an important engine component because it helps seal the top of the cylinder head while controlling crankcase vapours through the integrated ventilation system. A damaged or cracked cover can result in oil leakage or vacuum/air leaks.
BMW Part Details
- BMW Part Number: 11127588412
- BMW OE Format: 11 12 7 588 412
- Product: Cylinder Head Cover / Valve Cover
- Also Known As: Rocker Cover / Engine Valve Cover
- Brand: Genuine BMW
- Primary Engine Application: BMW N20 2.0L petrol
- PCV/Crankcase Ventilation: Integrated on applicable N20 versions
- Fitment: Selected BMW 1, 2, 3, 4, 5 Series, X1, X3, X4, X5, X6 and Z4 models
ECS specifically identifies 11127588412 as a Genuine BMW valve cover for N20 engines, non-SULEV applications.
Compatible BMW Models
BMW 11127588412 is used across a wide range of BMW chassis with applicable engines. Catalogue data includes:
- BMW 1 Series F20/F21
- BMW 2 Series F22/F23
- BMW 3 Series F30/F31/F34
- BMW 4 Series F32/F33/F36
- BMW 5 Series F10/F11/F18
- BMW X1 E84
- BMW X3 F25
- BMW X4 F26
- BMW X5 F15
- BMW X6 F16
- BMW Z4 E89
Specific applications include selected 320i, 320i xDrive, 328i, 328i xDrive, 428i, 528i, X1 28i, X3 28i, X4 28i, X5 xDrive40e and Z4 28i models.
Common N20 Applications
Some of the most relevant applications include:
BMW 320i | BMW 328i | BMW 428i | BMW 528i | BMW X1 28i | BMW X3 28i | BMW X4 28i | BMW X5 xDrive40e | BMW Z4 20i/28i
Exact fitment depends on the vehicle’s engine, production date and specification.
What Does the BMW Valve Cover Do?
The valve cover seals the top of the cylinder head and helps contain engine oil and crankcase vapours within the engine.
On the applicable N20 engine, the valve cover also incorporates the crankcase ventilation/PCV system. This means that a problem with the cover or its integrated diaphragm can cause both oil leakage and vacuum-related engine symptoms.
A properly functioning valve cover helps:
- Seal the cylinder head
- Prevent engine oil leakage
- Control crankcase vapours
- Maintain proper crankcase ventilation
- Prevent unwanted air/vacuum leaks
- Protect the engine bay from oil contamination
Symptoms of a Faulty BMW Valve Cover
A damaged or deteriorated valve cover can produce several symptoms.
Oil Leaks
A cracked valve cover or failed sealing surface can allow engine oil to escape from the top of the engine.
Vacuum Leak
Because the N20 valve cover incorporates the crankcase ventilation system, a damaged PCV diaphragm or cover can create an unwanted air leak.
Rough Idle
A crankcase ventilation problem can affect engine operation and may contribute to rough or unstable idling.
Whistling or Unusual Engine-Bay Noise
A damaged PCV system can sometimes produce abnormal whistling or suction noises.
Increased Oil Consumption
Oil leakage or a problem with crankcase ventilation can contribute to increased oil usage.
Check Engine Light
A significant crankcase ventilation or air-leak problem can trigger engine-management fault codes.
These symptoms can have several causes, so proper diagnosis is recommended before replacing the valve cover.
Genuine BMW Replacement
Using the correct valve cover is important because the component is part of both the engine sealing system and crankcase ventilation system.
BMW 11127588412 is catalogued as a Genuine BMW cylinder head cover, while specialist BMW parts catalogues identify it specifically for applicable N20 applications.
Buy BMW Valve Cover 11127588412 in Nairobi
Looking for a BMW N20 valve cover in Nairobi?
Bavarian Trading Company Limited supplies BMW spare parts in Nairobi, including genuine and OEM-quality engine components.
We are located at Adams Arcade, off Ngong Road, Nairobi, with both a BMW spare-parts shop and garage.
Order BMW Valve Cover 11127588412 Today
If your BMW has an oil leak, PCV problem, vacuum leak or damaged valve cover, make sure you replace it with the correct component for your engine.
Contact Bavarian Trading Company Limited today to order BMW Valve Cover 11127588412.
Send us your BMW VIN/chassis number so we can confirm the correct valve cover before you purchase.
Need it fitted? We can also supply and install the valve cover at our Nairobi garage.
Important Fitment Notice
BMW 11127588412 is primarily associated with applicable N20 2.0L petrol engines, but exact compatibility varies by model, engine version, production date and specification. ECS also notes that this specific cover is for N20 non-SULEV applications. Always verify the part against your VIN before ordering.















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