Cheap Peugeot 508 Catalytic Converter

The Peugeot 508 first generation ran from 2011 to 2018, with a facelift in 2014, so a 2012 and a 2015 are both first-gen cars but sit either side of that facelift boundary. Fitment of the catalytic converter depends primarily on the engine code and emissions standard, and parts from across that 2014 facelift boundary can sometimes differ even on the same engine — confirm with the breaker that the engine codes match and that the emissions compliance is the same before buying.

No — petrol and diesel exhaust after-treatment systems are entirely different and are not interchangeable. Petrol 508s use a conventional catalytic converter, while diesel 508s use a diesel oxidation catalyst typically integrated with or positioned ahead of a diesel particulate filter (DPF), so the parts are specific to fuel type. Always confirm the fuel type with the breaker matches your own vehicle.

No — trim level (such as Access, Active, Allure, GT or GT Line) has no bearing on catalytic converter fitment; what matters is the engine code, fuel type, and the emissions standard the car was built to. You may find the exhaust system looks visually similar across trims, but always cross-reference on engine code rather than trim name. Confirm the specific part reference with the breaker against your registration to be sure.

Yes, emissions era is a key fitment factor — a catalytic converter built to Euro 5 standards may not meet the requirements of a Euro 6-compliant vehicle and could result in an MOT emissions failure even if it physically fits. The Peugeot 508 first generation (2011–2018) spans the Euro 5 to Euro 6 transition, so it is important to know which standard your car was built to. Confirm with the breaker that the part they have matches your vehicle's emissions era as well as its engine code.

Petrol variants of the Peugeot 508 are fitted with a conventional catalytic converter, while diesel variants use a diesel oxidation catalyst (DOC) that works alongside a diesel particulate filter (DPF) — so the answer depends on which engine your car has. On diesel cars, the catalytic function and the DPF are often housed in a combined assembly, meaning you may need to discuss with the breaker whether you need the DOC, the DPF, or both as a unit. Make sure you tell the breaker your fuel type, engine code, and registration so they can identify the correct part.

The second-generation Peugeot 508 launched in 2018 with a new platform, updated engines, and different emissions calibration, so first-gen and second-gen catalytic converters are not the same parts. Even where an engine code appears similar between generations, the exhaust system design and emissions compliance may differ. This is firmly confirm-with-breaker territory — give the breaker both registrations and let them verify compatibility before purchasing.