Used Peugeot 408 EGR Valve

EGR valves are fitted to the Peugeot 408's diesel engines and are also present on some of its turbocharged petrol engines, but not every variant will have one in the same form. The 408 has been sold in two distinct generations — the first-generation model ran from around 2010 to 2014, and the second-generation (new platform) 408 arrived from 2022 onwards — and the engine lineup differs significantly between them. If you're unsure whether your specific engine has an EGR valve, cross-check your engine code with the breaker before ordering.

No — the first-generation and second-generation Peugeot 408 use entirely different platforms, engine families, and emissions standards, so parts from the pre-2014 car will not be compatible with the 2022-onwards model. The newer 408 is built around PSA/Stellantis' EMP2 platform with Euro 6-compliant engines, while the original 408 used an older architecture meeting earlier emissions standards. Always match the EGR valve to your exact engine code, which you can find on your V5C or by asking the breaker to check against your registration.

No, trim level does not affect EGR valve fitment — what matters is your engine code, fuel type (diesel or petrol), and the emissions era the car was built to. An Active and an Allure with the same engine and build year will use the same EGR valve. Give the breaker your engine code and registration to confirm the correct part rather than relying on trim name alone.

This is strong confirm-with-breaker territory — while the physical valve may look similar, Euro 5 and Euro 6 engines often have different EGR circuit designs, sensor configurations, and calibration requirements, and fitting the wrong era part can cause fault codes or emissions failures at MOT. The Euro 6 boundary broadly came into effect for new car registrations from September 2015 in the UK, so use your registration date as a starting guide. Always have the breaker verify compatibility against your specific engine code before purchasing.

The engine code is the most important thing to match — Peugeot fitted several different diesel and petrol engines to the 408 across its production run, and two cars from the same year can have different EGR valves if they carry different engine codes. The year alone is not a reliable guide, particularly around model-year changeovers when a new engine variant might be introduced mid-year. Your engine code is stamped on the engine block and also appears on your V5C, and any good breaker will want this before confirming a part.

It's possible that an EGR valve from another PSA/Peugeot model sharing your exact engine code could be compatible, since Peugeot used many engines across multiple models, but you should not assume this without checking. Factors such as the specific engine variant, ancillary routing, and build date can mean subtle differences even between apparently identical engine codes. Confirm the part number with the breaker against both vehicles' registrations before buying.