Peugeot 407 DPF Replacement Parts

The engine code is the most important thing to match on a 407 DPF — the 2.0 HDi and 2.7 HDi V6 diesel units use different filter assemblies and mounting positions, so a unit from the wrong engine will not fit regardless of the year it came from. Check your V5C or the sticker inside the engine bay to confirm your exact code before approaching a breaker. Never assume a DPF will fit based on engine size alone, as suffix letters within a family can indicate different emissions specifications.

The Peugeot 407 ran from 2004 to 2011, with a facelift introduced in 2008 that brought detail changes across the range. DPFs became more common on 407 diesels from around 2005 onwards as Euro 4 tightened, and later cars moving toward Euro 5 compliance could use revised filter specifications. You should name the facelift year (2008) when asking a breaker, and ask them to confirm against your registration whether a pre-facelift or post-facelift unit crosses that boundary safely, as this is strong confirm-with-breaker territory.

Trim level — whether your 407 is an S, SE, Executive, or GT — does not affect which DPF fits, as the filter is determined by the engine code and emissions specification, not the specification grade. You may find cosmetic differences in surrounding heatshields or undertray panels between trim levels, but the DPF core itself is the same across trims sharing the same engine and emissions era. Confirm the engine code and year with the breaker and trim need not enter the conversation.

The 407 was offered as a saloon, the 407 SW estate, and the 407 Coupe, and while the engine and DPF specification follows the engine code and emissions era rather than the body style, routing and pipe lengths can differ between body variants on some applications. It is worth telling the breaker exactly which body style you have so they can check whether the donor car matches, particularly if any flexible section or mounting bracket is included with the unit. The DPF core specification is the primary match, but physical fitment of the surrounding assembly may vary by body style.

The 2008 facelift is the key boundary to bear in mind here: a 2006 car is pre-facelift and a 2009 car is post-facelift, and while the engine code may look identical, emissions calibration and DPF specification can differ across that 2008 line. Whether this specific part crosses that boundary is exactly the kind of question you should put directly to the breaker, quoting both registrations so they can cross-reference their stock. Do not assume a match on engine code alone when the cars either side of a known facelift or emissions-era change are involved.

A used DPF that is structurally sound and correctly matched to your engine and emissions specification can pass an MOT, but a filter from the wrong emissions era may cause a failure even if it physically bolts on. The MOT checks for DPF presence and condition on cars that left the factory with one fitted, so fitting a unit from an earlier, lower-spec car could create a compliance problem. Confirm with the breaker that the donor vehicle's emissions specification matches your own registration, and have the system reset or checked by a garage after fitting.