Oil Separator Leaking on Your MAN? Fix It for $29.
The oil separator (crankcase ventilation) gasket on MAN diesel engines (P/N 51019080028, fits separator 51018040047) seals the separator housing to the engine block. When this gasket fails, oil vapor escapes the crankcase ventilation system, causing oil accumulation in the intake and excessive oil consumption.
✓ What You Get: Oil separator gasket for MAN truck diesel engines — seals the crankcase ventilation separator housing and stops oil leaks.
What's Included
- 1× Oil separator gasket (P/N 51019080028), compatible with separator 51018040047
Why Replace?
- Stops Oil Leaks: Failed gasket allows oil vapor to bypass the separator and contaminate the intake.
- Reduces Oil Consumption: Proper seal keeps crankcase vapors within the ventilation circuit.
- Protects Intake System: Prevents oil build-up in intake manifold and intercooler.
- Saves vs Assembly Replacement: Replace the gasket, not the entire separator unit.
Vehicle Compatibility
| Make | Application | OEM Reference |
|---|---|---|
| MAN | Diesel trucks — verify P/N | 51019080028 / 51018040047 |
About This Gasket
MAN oil separator gasket (OEM 51019080028) seals the crankcase ventilation separator assembly (51018040047) on MAN diesel truck engines. Gasket failure causes oil blow-by into the intake, increased oil consumption, and blue exhaust smoke. This direct-fit replacement restores proper crankcase ventilation sealing.
⚠ Verify Part Number Before Ordering: Confirm P/N 51019080028 matches your separator assembly before purchasing.
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