11127553626 PCV Diaphragm Repair Kit for BMW N43
This PCV diaphragm repair kit is designed for BMW N43 engines using valve cover reference 11127553626. It replaces the failed crankcase ventilation membrane inside the valve cover and helps restore correct PCV pressure regulation.
The kit is intended for targeted repair of the existing valve cover ventilation area. It is not a complete valve cover assembly or complete crankcase ventilation valve.
OEM / Reference Numbers
Primary OEM / valve cover reference number:
- 11127553626
Alternative / internal reference numbers:
- 11 12 7 553 626
- 71291FA
Product reference:
- SKU: KL11127553626
Part Type
- PCV diaphragm repair kit
- valve cover repair kit
- crankcase ventilation membrane
- valve cover diaphragm
- engine breather membrane repair component
What This Part Does
The PCV diaphragm regulates crankcase pressure and controls the flow of blow-by gases through the valve cover ventilation system. When the membrane tears, hardens or loses elasticity, the engine can draw unmetered air through the damaged diaphragm and lose correct pressure control.
Replacing the failed diaphragm helps restore crankcase ventilation function while keeping the existing BMW N43 valve cover in service.
Compatible Vehicles
This valve cover repair kit is listed for BMW vehicles equipped with N43 engine applications and valve cover reference 11127553626.
- BMW 1 Series E81
- BMW 1 Series E82
- BMW 1 Series E87 LCI
- BMW 1 Series E88
- BMW 3 Series E90
- BMW 3 Series E90 LCI
- BMW 3 Series E91
- BMW 3 Series E91 LCI
- BMW 3 Series E92
- BMW 3 Series E92 LCI
- BMW 3 Series E93
- BMW 3 Series E93 LCI
- BMW 5 Series E60 LCI
- BMW 5 Series E61 LCI
Engine / Engine Family / Technical Detail
- BMW N43
- Membrane diameter: 80 mm
- Designed for valve cover PCV diaphragm repair
Common Symptoms of Failure
- unstable idle
- smoke from the exhaust
- increased oil consumption
- check engine light
- poor mixture caused by unmetered air
- vacuum leak symptoms
- incorrect crankcase pressure
Why Choose This Replacement
- Targets the exact repair intent for 11127553626
- Replaces the failed 80 mm PCV diaphragm inside the existing valve cover
- Cost-effective alternative to replacing the complete valve cover when only the membrane has failed
- Helps restore crankcase ventilation and pressure regulation
- Suitable for BMW N43 valve cover PCV repair
Important Before Ordering
- Check that your original valve cover reference matches 11127553626.
- Confirm that your vehicle uses a BMW N43 engine.
- Compare the 80 mm membrane design with the diaphragm installed in your original valve cover.
- This product is a PCV diaphragm repair kit, not a complete valve cover assembly.
- Verify compatibility by OEM number, engine type and part design before ordering.
FAQ
What does BMW 11127553626 fit?
BMW 11127553626 is listed for valve cover PCV diaphragm repair on BMW N43 engine applications, including selected BMW 1 Series, 3 Series and 5 Series models shown in the compatibility list.
Is 11 12 7 553 626 the same as 11127553626?
Yes. 11 12 7 553 626 is the spaced BMW OEM format of the same reference number 11127553626.
What does this BMW N43 valve cover repair kit do?
It replaces the failed PCV diaphragm inside the valve cover and helps restore correct crankcase ventilation pressure regulation.
What symptoms indicate PCV diaphragm failure on BMW N43 engines?
Common symptoms include unstable idle, smoke, increased oil consumption, check engine light, poor mixture from unmetered air and vacuum leak symptoms.
Is this a complete valve cover assembly?
No. This product is a PCV diaphragm repair kit for the BMW N43 valve cover. It is not a complete valve cover assembly.
How do I confirm compatibility before ordering?
Confirm OEM number 11127553626, check that your vehicle uses a BMW N43 engine, and compare the 80 mm membrane with the diaphragm in your original valve cover.
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