Original FAP/DPF 1.6 HDi 68 kW with integrated catalytic converter – Citroën/Peugeot. Used part from a car with 64,000 km, clean and fully functional. The photo of the outlet shows that the filter regenerates correctly – without deposits of soot. The ideal choice for a quick and cost-effective repair of FAP systems in 1.6 HDi/e-HDi engines.

Key benefits
– Original PSA part (not aftermarket) – correct fit and long service life
– Low mileage of 64,000 km – lower pressure losses, fast regeneration starts
– Integrated oxidation catalyst – all in one body
– Verifiable compatibility via OE numbers

Technical information
– Type: FAP (Additive DPF) with integrated oxidation catalyst
– Designed for: 1.6 HDi/e-HDi 68 kW (DV6 engine family, Euro 5; system with Eolys additive, not SCR AdBlue)
– Connections: connections for differential pressure sensor (2 pins), thread for temperature sensor; shape and flange according to OE
– Condition: used, fully functional, no visible cracks, exhaust pipe free of soot
– Stock designation for quick tracking: K638

Vehicle compatibility (selected)
– Citroën Berlingo B9 1.6 HDi/e-HDi 68 kW
– Citroën C3 Picasso 1.6 HDi/e-HDi
– Citroën C4 II 1.6 HDi/e-HDi
– Peugeot 308 (T7) 1.6 HDi/e-HDi
– Peugeot Partner Tepee B9 1.6 HDi/e-HDi
Note: Always check against the OE number and VIN, assembly may vary by year and emission standard.

OE/Ref. verification numbers
– F026N
– 9803421780, 9803421180, 9803421880
– 173840, 174066

Installation recommendations
– Before assembly, check and, if necessary, replace seals, clamps and pressure hoses.
– After installation, perform the “Replace the FAP/DPF filter” function in the PSA diagnostics (DiagBox/Lexia), reset the filter filling to zero and add the Eolys additive as necessary.
– Clear fault codes and check differential pressure values; for some cars, a service (forced) regeneration is suitable.

Important
– Sensors, temperature sensors, pressure tubes and mounting hardware are only included if clearly indicated in the product photos.
– Compare shape/fit and OE numbers with your old part before ordering.

Search Terms/SEO: FAP 1.6 HDi 68kW, DPF Citroën Peugeot, Diesel Particulate Filter with Catalyst, F026N, 9803421780, 9803421180, 9803421880, 173840, 174066, Berlingo B9, C3 Picasso, C4 II, 308, Partner Tepee.

This complete OEM DPF with integrated catalytic converter is designed for 1.6 e-HDI diesel engines used by Citroën and Peugeot. It replaces a clogged or damaged DPF assembly and restores exhaust flow and emissions control without the need for temporary fixes. The unit is suitable for professional workshops and experienced DIY mechanics who require a direct-fit replacement matching factory specifications and commonly searched by product codes.

Technical Information

• Manufacturer: Stellantis / Citroën / Peugeot
• Model: Citroën Berlingo B9; Citroën C3 Picasso; Citroën C4 II; Peugeot 308; Peugeot Partner III; Peugeot Partner Tepee
• Product Codes: F026N
• Additional Numbers: 9803421780, 9808329680, 9803421880

Compatibility And Fitment

Fits 1.6 e-HDI (1.6 HDi) applications used across several Citroën and Peugeot platforms. Always match product codes listed above to the part number used on the vehicle. The assembly includes the integrated catalyst and is intended as a direct replacement for the original unit on compatible models.

Installation Recommendations

• Perform Work On A Cooled Engine: Allow Exhaust And Turbo Components To Cool Before Starting.
• Raise Vehicle Securely: Use Approved Lifting Equipment And Stands To Access The Underbody Safely.
• Disconnect Sensors Carefully: Remove Differential Pressure, Temperature And Any Lambda/NOx Sensors Before Removing The DPF. Label Connectors For Reinstallation.
• Remove Heat Shields And Clamps: Undo Exhaust Clamps, Bolts And Heat Shields Securing The DPF. Preserve Gaskets And Replace Seals Where Necessary.
• Inspect Surrounding Components: Check Downpipe, Flex Pipe, Turbo Outlet And Mounts For Damage Or Exhaust Leaks.
• Use New Gaskets And Hardware: Replace Gaskets And Any Exposed Fasteners That Show Corrosion; Use Anti-Seize On Bolts Where Appropriate.
• Relearn And Clear Codes: After Installation, clear Relevant Fault Codes And If Required Perform A Forced Regeneration Or Drive Cycle To Confirm Proper Operation.
• Safety: Wear Eye Protection And Gloves. Ensure Exhaust System Is Sealed Correctly To Avoid Exhaust Leaks.

Reasons Why The Part Most Often Fails

• Soot And Ash Buildup: Accumulation From Short Trips And Low-Speed Driving That Prevents Regular Regeneration.
• Faulty Regeneration: Problems With EGR, Injectors, Or Poor Fuel Combustion That Increase Soot Production And Prevent Effective DPF Regeneration.
• Oil Contamination: Engine Oil Entering The Exhaust (Via Worn Turbo Seals Or Valve Stem Seals) Causes Premature Clogging.
• Sensor Failures: Malfunctioning Pressure Or Temperature Sensors Can Mask Regeneration Needs Or Cause Incorrect Engine Management Responses.
• Physical Damage And Substrate Breakage: Impact, Overheating Or Thermal Shock Can Crack The Ceramic Substrate, Leading To Restriction Or Noise.
• Excessive Ash Accumulation Over Time: Even With Proper Regeneration, Non-Combustible Ash Eventually Reduces Flow And Requires Replacement.

Typical Service Life: DPF Lifespan Varies With Driving Style And Maintenance. Many Units Last Between 120,000 And 200,000 Km Under Mixed Driving Conditions; City Use With Frequent Short Trips Accelerates Wear. This Unit Has 136,000 Km On The Clock.

For workshops and experienced DIYers this DPF offers a direct-fit solution to restore exhaust flow and emissions control on compatible Citroën and Peugeot 1.6 e-HDI models. Check the product codes listed in the Technical Information to ensure exact match with the vehicle’s existing part number.

Looking for a reliable Diesel Particulate Filter with catalytic converter for your Citroën or Peugeot? Our offer includes an original, used DPF 1.6 e-HDI in excellent condition. This part has covered just 84,000 km and is an ideal choice to maintain your vehicle’s efficient operation without the need to invest in a new unit.

Our detailed photos reveal the filter’s condition, clearly showing no soot accumulation, which indicates its flawless function. Replacing this part can positively influence your engine performance and reduce your vehicle’s emissions, crucial for complying with strict emission standards.

Technical Information

• Manufacturer: PSA
• Model: Citroën Peugeot 1.6 HDI
• Product Codes: F026N, 9803421780, 9803421180, 9803421880

This Diesel Particulate Filter is designed for models such as Citroën Berlingo B9, Citroën C3 Picasso, Citroën C4 II, Peugeot 308, and Peugeot Partner Tepee. Installation is relatively straightforward and can be performed by DIY mechanics or small workshops using common tools. Regular replacement of the DPF is essential to maintain low emission levels and extend engine life.

When choosing used auto parts, it is crucial to select verified sources. Our parts come with guaranteed condition and clear history, making this DPF an excellent alternative to brand-new components.