PCV Membrane – Infiniti / Renault / Nissan / SsangYong 3.0 dCi V9X | OEM 118105X20A
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Delivery within the USA
Ships from Miami, FL when the ordered quantity is available in our US warehouse.
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US delivery: typically 2–5 business days after dispatch
US warehouse: USPS/FedEx shipping is calculated at checkout based on your delivery address.
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PCV / Crankcase Ventilation Diaphragm (Membrane Only) – 11810-5X20A
This PCV membrane is a replacement diaphragm for the crankcase ventilation mechanism associated with 3.0 dCi V9X applications. The product contains one flexible membrane, not the complete breather/valve-cover assembly.
Product scope: This listing supplies PCV / crankcase ventilation diaphragm (membrane only). 11810-5X20A and listed related PNs are crankcase-ventilation housing/system references; they are not verified OEM numbers of the separately sold diaphragm.
Part Numbers and References
Primary matching reference: 11810-5X20A.
Related assembly or cross-reference numbers: 8200852049, 8200886278, 8200852042.
KLIFEX SKU: KL118105X20A. 11810-5X20A and listed related PNs are crankcase-ventilation housing/system references; they are not verified OEM numbers of the separately sold diaphragm.
What This Part Does
A PCV diaphragm regulates crankcase-gas flow and pressure as part of the breather system. A damaged membrane may upset pressure control and allow unusual oil mist or air movement through the intake pathway.
Compatible Vehicles and Applications
- Nissan Pathfinder R51 (2005–2014) and Navara D40 (2005–2015), where the listed V9X setup applies
- Infiniti FX/QX and Q70 family applications listed on the page
- Renault Laguna III (2007–2015), subject to V9X housing confirmation
Technical and Product Details
- Engine reference: 3.0 dCi V9X
- Supply: 1 PCV membrane
- Main matching reference: 11810-5X20A
When to Inspect This Component
The following conditions may justify inspection. Symptoms alone do not confirm that this product is the failed component.
- Whistling or excessive crankcase vacuum
- Increased oil consumption or oil residue in the intake
- Rough idle or smoke after warm-up
Why Consider a Component-Level Repair?
- Replace the flexible failure-prone diaphragm when the housing remains undamaged
- Retain the existing breather housing if mechanical inspection permits
Important Checks Before Ordering
- Match membrane shape and the housing reference
- Check the existing breather housing for cracks and contamination
- Do not assume all Nissan/Infiniti models in the family use an identical membrane
Frequently Asked Questions
Is 11810-5X20A the membrane's own OEM number?
The listing uses it to identify a compatible PCV system; it is not documented as the separate membrane OEM.
How many membranes are included?
One PCV membrane is listed.
Is a complete valve cover included?
No. This is the flexible membrane only.
What may indicate membrane failure?
Whistling, abnormal crankcase vacuum or oil mist can be clues, but require diagnosis.
How do I check V9X compatibility?
Compare the breather housing number and the removed diaphragm's dimensions/design.
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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
US warehouse: USPS/FedEx shipping is calculated at checkout based on your delivery address.
Ships from Ukraine
From Ukraine: standard shipping is $9 to the USA and other countries.
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.
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.