Used Peugeot 408 Differential

The Peugeot 408 (first generation) ran from 2011 to 2014 in the UK market, and the second-generation 408 launched in 2023 as a fully distinct model on a different platform. These two generations do not share differentials, so always confirm which generation your car belongs to before sourcing a unit. Give your registration and engine code to the breaker so they can match against the correct generation.

Both years sit within the first-generation 408 (2011–2014), so there is a reasonable chance of compatibility, but fitment ultimately follows the engine code rather than the model year alone. Pull your engine code from your V5 or a VIN check and supply it to the breaker, as mid-production running changes to mountings or ancillaries can affect whether a unit drops straight in. Never assume fitment without the breaker confirming against your registration.

No — the second-generation 408 is built on Stellantis's EMP2 platform and is a fundamentally different vehicle to the first-generation car, so the differentials are not interchangeable. Always source a differential from the correct generation and confirm the engine code matches yours before buying.

For the Peugeot 408, trim level (Active, Allure, GT Line) does not affect differential fitment — what matters is your engine code, fuel type, and whether your car has a manual or automatic gearbox. A differential pulled from an Allure can in principle suit an Active if all those mechanical details match, though cosmetic differences between donor and recipient cars are irrelevant to the part itself. Confirm the engine code and gearbox type with the breaker against your registration to be sure.

Yes, fuel type matters because petrol and diesel variants of the 408 use different engines with different output characteristics, and the differential specification can vary accordingly. Your engine code (found on your V5 or via a VIN check) will make this clear and is the single most useful detail you can give a breaker. Always supply both the engine code and gearbox type when requesting a quote.

Whether a used differential requires any electronic pairing or immobiliser coding to your specific vehicle is something you should confirm directly with the breaker and your fitting garage, as this can vary and we cannot state it as fact for your exact car. Raise the question before you buy so you understand any additional work that may be needed after fitting.