Aluminum PCV Diaphragm Cover – BMW N52 / N52K / N53 / N52N / N52T / N51
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Regular price
$25.00
Sale price
$25.00
Regular price
$30.00
Delivery within the USA
Ships from Miami, FL when the ordered quantity is available in our US warehouse.
USPS Ground Advantage / FedEx
US delivery: typically 2–5 business days after dispatch
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Aluminum PCV Diaphragm Cover for BMW N52, N52K, N53, N52N, N52T, N51
This aluminum PCV diaphragm cover is designed for BMW N52, N52K, N52N, N52T, N51 and N53 valve cover diaphragm repair. It replaces the original plastic diaphragm cover that can crack or warp from engine heat.
This product is the aluminum cover only. It is not a PCV membrane, complete repair kit, complete valve cover or crankcase ventilation valve assembly.
OEM / Reference Numbers
Primary OEM number:
- No confirmed OEM number is specified for the aluminum cover on this product page.
Product reference:
- SKU: KL111275522812
Part Type
- aluminum PCV diaphragm cover
- valve cover diaphragm cap
- PCV membrane cover
- valve cover repair component
- crankcase ventilation diaphragm cover
What This Part Does
The diaphragm cover closes and secures the PCV membrane area on the valve cover. The original plastic cover can crack with age and heat, causing oil leaks at the diaphragm mounting point and poor sealing around the PCV repair area.
Replacing the plastic cover with an aluminum version helps restore sealing and provides a reusable cover for future diaphragm service.
Compatible Vehicles
This aluminum PCV diaphragm cover is listed for BMW engine valve covers using compatible N52, N52K, N52N, N52T, N51 and N53 configurations.
- BMW N52 valve cover applications
- BMW N52K valve cover applications
- BMW N52N valve cover applications
- BMW N52T valve cover applications
- BMW N51 valve cover applications
- BMW N53 valve cover applications
Engine / Engine Family
- BMW N52
- BMW N52K
- BMW N52N
- BMW N52T
- BMW N51
- BMW N53
Common Symptoms of Failure
- cracked plastic PCV diaphragm cover
- oil leaks around the diaphragm mounting point
- poor sealing at the PCV diaphragm area
- vacuum leak symptoms
- unstable crankcase ventilation after diaphragm repair
Why Choose This Replacement
- Aluminum replacement for the original plastic diaphragm cover
- Reusable cover for BMW six-cylinder valve cover PCV repairs
- Helps prevent cracking and heat-related deformation
- Supports proper sealing of the PCV diaphragm area
- Suitable for N52, N52K, N52N, N52T, N51 and N53 valve cover applications
Important Before Ordering
- Confirm that your valve cover uses a compatible PCV diaphragm cover design.
- Check that your engine is BMW N52, N52K, N52N, N52T, N51 or N53.
- Compare the cover shape and mounting design with your original part.
- This product is the aluminum cover only, not the PCV membrane or complete repair kit.
- Do not use SKU KL111275522812 as an OEM number for the cover.
FAQ
What does this aluminum PCV diaphragm cover fit?
This aluminum cover is listed for compatible BMW N52, N52K, N52N, N52T, N51 and N53 valve cover diaphragm repair applications.
Does this aluminum cover have an OEM number?
No confirmed OEM number is specified for the aluminum cover on the product page. SKU KL111275522812 is a product reference, not an OEM number.
What does this PCV diaphragm cover do?
It closes and secures the PCV diaphragm area on the valve cover, helping maintain sealing after diaphragm repair.
What symptoms indicate a failed plastic diaphragm cover?
Common symptoms include visible cracks, oil leaks around the PCV diaphragm area, poor sealing and vacuum leak symptoms.
Is this a complete PCV repair kit?
No. This product is the aluminum cover only. It is not the PCV membrane, complete repair kit or full valve cover assembly.
How do I confirm compatibility before ordering?
Confirm the engine family, compare the cover shape with your original PCV diaphragm cover, and verify that your valve cover uses the same mounting design.
Read All
Delivery within the USA
Ships from Miami, FL when the ordered quantity is available in our US warehouse.
USPS Ground Advantage / FedEx
US delivery: typically 2–5 business days after dispatch
Ships from Ukraine
Orders outside the USA ship from Ukraine, even when the product is in stock in Miami.
Delivery to USA & Europe
Usually 10–14 calendar days after dispatch
Delivery to other countries
Usually 10–28 calendar days after dispatch
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Delivery estimates exclude processing. Holidays, customs clearance and carrier delays may extend transit times. Shipping costs are shown at checkout.
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.