Valve Cover PCV Repair Kit – BMW E65 745d M67N V8 Diesel | OEM 11127792420 11127792426

11127792420 / 11127792426 PCV Repair Kit for BMW E65 745d M67N

This PCV valve cover repair kit is designed for BMW E65 745d with the M67N diesel engine using valve cover references 11127792420 and 11127792426. It repairs the crankcase ventilation diaphragm area inside the existing valve cover.

The kit includes an 89 mm membrane for targeted repair of the PCV system. It is not a complete valve cover assembly.

OEM / Reference Numbers

Primary OEM / valve cover reference numbers:

• 11127792420
• 11127792426

Alternative BMW OEM formats:

• 11 12 7 792 420
• 11 12 7 792 426

Product reference:

• SKU: KL11127792420

Part Type

• PCV repair kit
• valve cover repair kit
• crankcase ventilation diaphragm repair kit
• PCV membrane repair kit
• engine breather diaphragm repair component

What This Part Does

The PCV membrane regulates crankcase pressure and controls blow-by gas flow through the valve cover ventilation system. On BMW M67N diesel engines, a failed diaphragm can cause pressure imbalance, oil vapor issues and unstable ventilation function.

Replacing the failed membrane helps restore crankcase ventilation and pressure regulation while keeping the existing valve cover in service.

Compatible Vehicles

This PCV repair kit is listed for BMW E65 745d with the M67N diesel engine.

• BMW 7 Series E65 745d M67N AUTO EUR — 07/2004 - 07/2008

Engine / Engine Family / Technical Detail

• BMW M67N
• BMW E65 745d diesel application
• Membrane diameter: 89 mm

Common Symptoms of Failure

• incorrect crankcase pressure
• rough or unstable idle
• increased oil consumption
• oil vapor issues in the intake system
• oil leaks caused by pressure imbalance
• crankcase ventilation malfunction symptoms

Why Choose This Replacement

• Targets the exact repair intent for 11127792420 and 11127792426
• Uses an 89 mm membrane for compatible BMW M67N valve cover applications
• Repairs the existing valve cover PCV system
• Cost-effective alternative to replacing the complete valve cover when only the diaphragm has failed
• Helps restore crankcase ventilation and pressure control

Important Before Ordering

• Check that your original valve cover reference matches 11127792420 or 11127792426.
• Confirm that your vehicle is BMW E65 745d with the M67N diesel engine.
• Compare the 89 mm membrane design with the diaphragm installed in your original valve cover.
• This product is a PCV repair kit, not a complete valve cover assembly.
• Verify compatibility by OEM number, engine type and vehicle application before ordering.

FAQ

• BMW

Returns and exchanges

Request a change-of-mind return within 14 calendar days of delivery, then send the goods within 14 calendar days of notifying us. Our voluntary return option applies to unused, uninstalled, complete goods in their original condition and packaging. Exchanges are subject to availability and agreement.

The customer pays change-of-mind return shipping. No restocking fee applies. Refunds and original delivery charges are handled under our Refund & Return Policy and applicable law.

Faulty, damaged or incorrect goods

Email contact-us@klifex.net with your order details and a description of the problem. These claims are separate from change-of-mind returns. Where we are responsible, we bear the required remedy and return costs. Installation alone does not remove mandatory defect rights.

Your legal rights

Applicable statutory rights take precedence, including EU/EEA and UK withdrawal rights and legal guarantees. Necessary inspection does not remove a statutory withdrawal right; deductions for excessive handling must reflect an actual, evidenced loss of value.

Contact us for the correct return address before shipping. Our legal address is not a return address.

Read the full Refund & Return Policy