Oil Separator Repair Kit — Fiat Ducato / Peugeot Boxer / Citroen Jumper 2.3 JTD
Fix Oil Blow-By on Your 2.3 Diesel Van — Complete Rebuild Kit, Not Just a Diaphragm.
Is your Fiat Ducato, Peugeot Boxer, or Citroen Jumper consuming oil, blowing smoke, or triggering crankcase ventilation faults? The oil separator diaphragm is the first thing to fail on 2.3 JTD/MJTD engines — and this kit gives you everything to fix it properly.
Includes a 70mm diaphragm (part numbers 026012/24 and 026012/3) plus all seals for a complete rebuild of the original separator unit.
What's Included
- 70mm replacement diaphragm (026012/24 and 026012/3)
- All seals and gaskets — full rebuild kit
Why This Kit
- Covers Both Diaphragm Variants: Includes 026012/24 and 026012/3 — covering the full production range of 2.3 JTD separators.
- Stops Oil Consumption: Restores correct crankcase pressure and eliminates oil blow-by into the intake.
- Fits All Brands: One kit covers Fiat, Peugeot, Citroen, and Iveco 2.3 diesel variants.
- Cost-Effective: Rebuild for a fraction of the price of a new separator assembly.
Vehicle Compatibility
| Make & Model | Engine | Years |
|---|---|---|
| Fiat Ducato III | 2.3 JTD / MJTD | 2006–2014 |
| Peugeot Boxer II | 2.3 HPI / MJTD | 2006–2014 |
| Citroen Jumper II | 2.3 HDi / MJTD | 2006–2014 |
| Iveco Daily IV | 2.3 | 2006–2012 |
Compatible Separator OEM Numbers
- 504132147
- 504249625
- 504384141
- 504033899
Pro Tip: On 2.3 JTD/MJTD vans, oil separator failure shows as blue/grey smoke at idle, oil in the intake manifold, or loss of power. Replace the diaphragm before it contaminates the turbo or intercooler — much cheaper fix at this stage.
FAQ
Q: Does this fit the 2.3 Multijet (MJTD) versions?
A: Yes — the Multijet is the updated branding for the same JTD 2.3 engine family. This kit fits both.
Q: Is the Iveco Daily 2.3 the same platform?
A: Yes. Ducato, Boxer, Jumper, and Daily all share the same 2.3L diesel engine — the separator and this kit are identical across all four.
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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