Used Peugeot 406 EGR Valve

Yes, but only on diesel-engined 406s — the 1.9 TD, 2.0 HDi, and 2.2 HDi variants all have an EGR valve as part of their emissions control system. Petrol 406s from this era (1995–2004) did not use EGR valves as standard fitment. If you have a petrol 406 and are chasing an emissions or running fault, the EGR valve is not the part you need — check with a breaker or mechanic about what emissions components are actually fitted to your engine.

The Peugeot 406 ran from 1995 to 2004, with a facelift arriving in 1999 that brought styling updates but more importantly saw the introduction of the 2.0 HDi common-rail diesel engine alongside the older 1.9 TD unit. Because the HDi and the older TD use different EGR valve designs tied to their engine architecture, an EGR valve from a pre-1999 1.9 TD will not cross over to a post-1999 HDi — engine code is the key matching point, not the model year alone. Confirm the exact engine code on your registration with the breaker before ordering.

No, trim level makes no difference to EGR valve fitment on the 406 — the valve is determined entirely by engine code and fuel type, not whether the car is an LX, GLX, or Executive. All three trims were available with the same diesel engines, so a valve pulled from an Executive HDi will fit an LX HDi with the same engine code. Focus your search on matching the engine code rather than the trim badge.

The 2.0 HDi engine was used across several PSA platforms, so there is a reasonable chance of cross-compatibility with other PSA models sharing the same engine code and generation of HDi unit. However, mounting arrangements, pipe connections, and emissions calibration can differ between applications, so this is firmly confirm-with-the-breaker territory rather than something to assume. Give the breaker your 406's engine code and ask them to cross-reference against the donor vehicle before purchasing.

The 406 went out of production in 2004, so new OEM parts are largely discontinued, making the used breaker market one of the most practical sources for EGR valves on these cars. Used valves from dismantlers can be good value, but EGR valves are wear items that can be coked up or partially seized, so it is worth asking the breaker where the donor car came from and whether it was running when scrapped. A used valve is a sensible option given the age of the vehicle, but factor in the possibility of cleaning or reconditioning if you want reliable results.

No — the 1.9 TD is an older indirect-injection turbodiesel and the 2.0 HDi is a later common-rail unit; they use fundamentally different EGR valve designs that are not interchangeable. You need to match the EGR valve to the specific engine code on your car, and the breaker will need that code to pull the correct part. Fitting the wrong valve will result in it not connecting properly or not functioning correctly, so do not assume physical similarity means compatibility.