Used Peugeot 407 Alternator

The Peugeot 407 ran as a single generation from 2004 to 2011, with a facelift arriving in 2008, so your 2005 and 2008 cars sit either side of that facelift boundary. Fitment depends primarily on the engine code rather than the model year, so if both cars share the same engine code the alternator may well interchange, but ancillary mounting details can change across a facelift run. Confirm the engine codes on both V5 documents and check with the breaker against your registration before buying.

For the alternator, body style and trim level make no difference to fitment — the 407 Saloon, Coupé, and SW Estate all share the same engine units, so it is the engine code that determines which alternator you need, not whether the car is an SE or any other trim. You may notice cosmetic differences between parts pulled from different body styles, but the alternator itself is mechanically the same for a given engine. Supply your engine code and registration to the breaker to confirm the correct unit.

Yes, fuel type matters significantly — the alternator is matched to the engine, and a diesel 407 (such as those running the 2.0 HDi or 2.7 HDi) will use a different unit to a petrol 407 (such as the 1.8 or 2.0 petrol). Always give the breaker your exact engine code, which you can find on your V5 logbook or via a VIN check, as this is the most reliable way to ensure the correct alternator is sourced.

The facelift arrived in 2008, and while the same engine families were used across both phases of the 407's production run, ancillary and mounting arrangements can change mid-production and are not something we can confirm as fact here. Name that boundary clearly when speaking to the breaker and ask them to cross-reference both the engine code and the registration of your specific car before they pull the part.

Whether a replacement alternator requires any ECU pairing or immobiliser coding to your specific vehicle is something we cannot state as fact, as this can vary by build and specification. Raise this directly with the breaker and, if needed, a Peugeot specialist or auto electrician who can check your vehicle's exact requirements before fitting a used unit.

No, the 2.7 HDi V6 and the 2.0 HDi are entirely different engines with different engine codes, and the alternator is matched to the engine, so the two units are not interchangeable. Always quote your exact engine code to the breaker — found on your V5 or via a VIN check — to make sure you are quoted the right part for your specific 407.