A6420101791 / A6420101291 PCV Membrane for Mercedes OM642 3.0L V6 Diesel
This replacement PCV membrane is designed for Mercedes-Benz OM642 3.0L V6 diesel applications using compatible PCV separator assemblies referenced by A6420101791 and A6420101291. The product page also lists multiple additional compatible PCV assembly references.
This product is an individual replacement PCV membrane. It is not a complete PCV separator or crankcase ventilation assembly.
OEM / Reference Numbers
- A6420101791 — primary target PCV assembly reference
- A6420101291 — cross-reference
- A6420103707 — compatible PCV assembly reference
- A6420101491 — compatible PCV assembly reference
- A6420101191 — compatible PCV assembly reference
- 6420102391 — compatible PCV assembly reference
- 6420101691 — compatible PCV assembly reference
- 6420102491 — compatible PCV assembly reference
- A6420102891 — compatible PCV assembly reference
- A6420101091 — compatible PCV assembly reference
- A6420101391 — compatible PCV assembly reference
- A6420100991 — compatible PCV assembly reference
- A6420100691 — compatible PCV assembly reference
- A6420101591 — compatible PCV assembly reference
- A6420101891 — compatible PCV assembly reference
- A6420102291 — compatible PCV assembly reference
- A6420102691 — compatible PCV assembly reference
- 6420101391 — compatible PCV assembly reference
- 6420101091 — compatible PCV assembly reference
Part Type
- PCV membrane
- Crankcase ventilation membrane
- Replacement membrane for compatible PCV separator assemblies
- Not a complete PCV separator assembly
What This Part Does
This membrane is a service component for the PCV separator assembly used with the Mercedes OM642 3.0L V6 diesel engine. According to the product listing, failure of the PCV membrane can cause oil mist in the intake, increased oil consumption and crankcase fault codes.
Compatible Vehicles
The product page states compatibility with Mercedes-Benz vehicles using the OM642 3.0L V6 diesel engine, including:
- Mercedes-Benz C-Class — W204 / W205
- Mercedes-Benz E-Class — W211 / W212 / W213
- Mercedes-Benz S-Class — W221 / W222
- Mercedes-Benz ML — W164 / W166
- Mercedes-Benz GL — X164 / X166
- Mercedes-Benz GLE — W166 / C292
- Mercedes-Benz GLC — X253
- Mercedes-Benz Vito — W639
- Mercedes-Benz Sprinter
- Chrysler 300C CRD
- Jeep Grand Cherokee CRD
Engine / Technical Details
- Engine family: OM642
- Engine displacement: 3.0L
- Engine configuration: V6 diesel
- Primary PCV assembly reference: A6420101791
- Cross-reference: A6420101291
Common Symptoms of PCV Membrane Failure
- Oil mist in the intake
- Increased oil consumption
- Crankcase fault codes
Why Choose This Replacement Membrane
- Allows replacement of the individual failed PCV membrane without replacing the complete PCV separator assembly
- Designed for the OM642 3.0L V6 diesel application
- Supports multiple compatible PCV assembly references listed on the product page
- Direct replacement membrane for the listed OM642 PCV separator applications
Important Before Ordering
- Verify that your PCV separator assembly matches A6420101791, A6420101291 or one of the listed compatible references.
- Confirm that the vehicle uses the OM642 3.0L V6 diesel engine.
- Do not confirm compatibility by vehicle model alone; verify the PCV assembly reference where possible.
- This product is an individual PCV membrane and not a complete PCV separator assembly.
- The product page does not specify membrane diameter or material.
What does reference A6420101791 fit?
According to the product listing, this replacement PCV membrane fits compatible A6420101791 PCV separator assemblies used with the OM642 3.0L V6 diesel engine in listed Mercedes-Benz, Chrysler and Jeep applications.
Is A6420101291 related to A6420101791?
Yes. The product page lists A6420101291 as a cross-reference and includes both numbers among the compatible PCV separator assembly references.
Which engine does this PCV membrane fit?
The product listing specifies the Mercedes OM642 3.0L V6 diesel engine.
What symptoms can indicate OM642 PCV membrane failure?
The product page identifies oil mist in the intake, increased oil consumption and crankcase fault codes as symptoms associated with a failed PCV membrane.
Is this a complete OM642 PCV separator assembly?
No. This product is an individual replacement PCV membrane for compatible separator assemblies. It is not a complete PCV separator assembly.
How do I confirm compatibility before ordering?
Confirm that the vehicle uses the OM642 3.0L V6 diesel engine and verify that the PCV separator assembly matches A6420101791, A6420101291 or one of the other compatible references listed for this membrane.
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