Peugeot 407 Gearbox Replacement Parts

The Peugeot 407 ran as a single generation from 2004 to 2011, with a facelift arriving in 2008, so your question spans that facelift boundary. Gearbox compatibility is driven primarily by the engine code rather than the model year, so a pre-facelift and post-facelift 407 sharing the same engine code may well use the same gearbox, but ancillary and mounting changes that sometimes accompany a facelift mean you should confirm the exact interchange with the breaker against both registrations before buying.

The engine code matters far more than the year — two 407s built in the same year can have completely different gearboxes if they carry different engines, so the year alone is not a reliable guide. Your engine code will be on your V5C or can be retrieved via a VIN check, and it is the single most useful detail you can give a breaker when requesting a quote. Always lead with the engine code rather than just the registration year.

For the Peugeot 407, trim levels such as SE, SRi, and GT do not affect which gearbox is fitted — what matters is the engine code and whether the car has a manual or automatic gearbox. A breaker supplying a gearbox from a higher-spec GT will be sending you the same mechanical unit as an SE if the engine codes match, though you may notice cosmetic differences in any ancillary parts that come attached. Confirm the engine code and gearbox type match your car, and trim is irrelevant to fitment.

No — diesel and petrol 407 gearboxes are not interchangeable, as they are engineered around the torque and output characteristics of each fuel type and the specific engine they are paired with. Always match both the fuel type and the engine code when sourcing a replacement gearbox. Fitting the wrong type is likely to cause mechanical failure or prevent the car from functioning correctly.

Body style does not affect gearbox fitment on the 407 — the gearbox is determined by the engine code and gearbox type, not whether the donor car is a saloon or SW estate. As long as the engine codes and gearbox types match, the body style of the breaker's car is irrelevant to whether the unit will fit yours.

This is worth raising directly with your breaker, as ECU pairing and immobiliser coding can vary and it is not something we can confirm as fact here. Some gearboxes, particularly automatics, may require coding to the vehicle, and a good breaker or independent specialist will be able to advise whether the unit they are supplying needs any additional work to function correctly in your car. Always ask before you buy rather than assume it will be plug-and-play.