Cheap Peugeot 307 Alternator

The Peugeot 307 ran as a single generation from 2001 to 2008, with a facelift in 2005, so your two cars sit either side of that facelift boundary. Fitment depends primarily on the engine code rather than the year, so if both cars share the same engine code the alternator is likely compatible, but ancillary mounting details can change across a facelift and you should confirm the cross-year swap with the breaker against both registrations before buying.

For mechanical parts like alternators, the engine code is the single most useful detail you can supply — two 307s from the same year can carry different engines with different alternators, while two cars from different years can share the same engine and be a direct match. You'll find the engine code on your V5C or by running a VIN check, and passing it to the breaker will get you a much more accurate quote than year alone. Never rely on year as your only search criterion for an alternator.

No — trim level does not affect alternator fitment on the 307. Whether your car is an S, LX, XT, or SW trim, the alternator follows the engine, not the badge, so a part from a lower or higher trim car will fit provided the engine code matches. Do bear in mind that breakers may pull parts from any trim, so cosmetic differences on the donor car are irrelevant to whether the alternator itself will work on yours.

Yes, fuel type matters — diesel and petrol 307s use different engines with different alternator specifications, so a unit from a diesel donor will not simply swap into a petrol car and vice versa. Always tell your breaker whether your car is petrol or diesel and supply the engine code to make sure you're quoted the right part.

Peugeot did share engine families across models, so there is a chance of overlap, but alternator mounting, bracket design, and output rating can vary even between cars using a similar base engine. This is exactly the kind of cross-model question to put to the breaker with your 307's engine code — they can check the part numbers against what they have in stock rather than you guessing.

Gearbox type can influence alternator output and ancillary setup on some applications, so it is worth mentioning to the breaker alongside your engine code. In most cases the engine code will be the deciding factor, but flagging your gearbox type costs nothing and helps the breaker rule out any variants that differ — confirm the specific combination with them against your registration before purchasing.