Second Hand Peugeot 406 Radiator

The Peugeot 406 ran as a single generation from 1995 to 2004, with a facelift introduced in 1999, and radiator fitment can differ across that 1999 boundary depending on engine and ancillary changes made at the time. Engine code is the most reliable guide – if the donor car shares your engine code and fuel type, there is a strong chance of compatibility, but whether the mounting points and pipework connections carried over unchanged across the facelift is something you should confirm with the breaker against your registration. Never assume a pre-1999 radiator will drop straight into a post-1999 car without checking.

No – diesel and petrol engines run at different thermal loads and the radiators are engineered accordingly, so fuel type matters here. Always tell the breaker your fuel type and, ideally, your engine code from your V5 or a VIN check, as that is the single most useful detail for matching the correct radiator. Fitting the wrong type risks inadequate cooling and potential engine damage.

For the radiator itself, body style does not drive fitment – what matters is your engine code, fuel type, and gearbox type. A saloon and an estate sharing the same engine code will typically use the same radiator, so do not let body style be the deciding factor when searching. Confirm the specific part reference with the breaker against your registration to be sure.

Gearbox type can affect the radiator because automatic transmission models sometimes use a radiator that incorporates an integrated transmission oil cooler, whereas manual versions do not. This means a radiator from a manual car may not be a straight swap into an automatic 406 and vice versa. Always tell the breaker whether your car is manual or automatic alongside the engine code.

Trim level does not affect radiator fitment on the 406 – LX, GLX, and SR are badge and equipment distinctions, not mechanical ones, and the radiator is determined by engine code, fuel type, and gearbox rather than the trim name. You may find that cars specced at different trim levels came with different engines, so quote your engine code to the breaker rather than just the trim badge. The trim level can be ignored entirely when sourcing this part.

Year alone is not enough, because several different petrol and diesel engines were offered across the 406's 1995 to 2004 lifespan and the radiator follows the engine, not the model year. Your own engine code is on your V5 logbook or can be retrieved via a VIN check, and supplying that to the breaker is far more reliable than matching by year. If the selling breaker cannot identify the donor vehicle's engine code, treat the part with caution and confirm compatibility carefully before buying.