11128589941 Crankcase Ventilation Valve for BMW N47N, N47S1 and B47
This crankcase ventilation valve is designed for BMW and MINI diesel applications using OEM reference 11128589941. It repairs the PCV / crankcase ventilation function in compatible N47N, N47S1 and B47 valve cover designs.
The part is intended for targeted crankcase ventilation repair. It is not a complete valve cover assembly.
OEM / Reference Numbers
Primary OEM number:
- 11128589941
Secondary valve cover reference numbers:
- 11127810584
- 11128570828
- 11128513755
- 11128581798
- 11128581797
- 11128513754
- 11128589943
- 11128576293
- 11127823180
- 11128589942
- 11128516511
Product reference:
- SKU: KL11128589941
Part Type
- crankcase ventilation valve
- PCV valve
- valve cover PCV repair component
- engine breather valve
- crankcase pressure control valve
What This Part Does
The crankcase ventilation valve regulates pressure inside the crankcase and controls blow-by gas flow through the engine breather system. A failed valve can cause pressure imbalance, oil vapor issues, vacuum leak symptoms and unstable engine operation.
Replacing the failed valve helps restore PCV system function while keeping the existing valve cover in service when it is otherwise usable.
Compatible Vehicles
This crankcase ventilation valve is listed for BMW and MINI applications with N47N, N47S1 and B47 diesel engines.
- BMW N47N diesel applications
- BMW N47S1 diesel applications
- BMW B47 diesel applications
- MINI applications with compatible N47N / B47 engine configurations
Engine / Engine Family
- BMW N47N
- BMW N47S1
- BMW B47
- MINI diesel applications using compatible engine family configurations
Common Symptoms of Failure
- incorrect crankcase pressure
- rough or unstable idle
- increased oil consumption
- oil vapor issues in the intake system
- vacuum leak symptoms
- whistling or suction noise from the valve cover area
- check engine light related to air or pressure control faults
Why Choose This Replacement
- Targets the exact repair intent for 11128589941
- Supports multiple related BMW / MINI valve cover reference numbers
- Repairs the crankcase ventilation valve area in the existing valve cover
- Cost-effective alternative to replacing the complete valve cover when only the PCV valve has failed
- Helps restore crankcase pressure regulation and breather system function
Important Before Ordering
- Check that your original valve cover or PCV system matches 11128589941 or one of the listed reference numbers.
- Confirm that your vehicle uses a compatible N47N, N47S1 or B47 diesel engine.
- Compare the valve design with the PCV component installed in your original valve cover.
- This product is a crankcase ventilation valve / PCV repair component, not a complete valve cover assembly.
- Verify compatibility by OEM number, engine type and part design before ordering.
FAQ
What does BMW 11128589941 fit?
BMW 11128589941 is listed for crankcase ventilation valve repair on BMW and MINI N47N, N47S1 and B47 diesel applications using compatible valve cover designs.
Is 11128570828 related to 11128589941?
11128570828 is listed as a related valve cover reference number for this application. The main repair focus remains OEM 11128589941.
What does this crankcase ventilation valve do?
The valve regulates crankcase pressure and controls blow-by gas flow through the PCV / engine breather system.
What symptoms indicate crankcase ventilation valve failure?
Common symptoms include incorrect crankcase pressure, rough idle, increased oil consumption, oil vapor issues, vacuum leak symptoms and whistling noise.
Is this a complete valve cover assembly?
No. This product is a crankcase ventilation valve / PCV repair component. It is not a complete valve cover assembly.
How do I confirm compatibility before ordering?
Confirm OEM number 11128589941 or one of the listed related references, check the engine type, and compare the valve design with the original PCV component.
Read All
Orders ship within 1–2 business days.
Standard delivery:
- USA: Some items ship from our US warehouse and arrive within 3 business days.
- USA-EU: 10–21 business days
- Worldwide: 14–30 business days
Shipping cost is shown at checkout.
Can I exchange or return an item?
Yes, you can exchange or return an item within 14 days of purchase. This right is guaranteed to you by the Law on the Protection of Consumer Rights
To use this feature, please make sure that:
- the product was not in use and has no traces of use: scratches, chips, abrasions, etc.
- the goods are fully completed and the integrity of the packaging is not violated
- retained all labels and factory markings