Peugeot 406 Lambda Sensor Replacement Parts
Get quotes for a used or replacement Peugeot 406 lambda sensor. Genuine second hand parts from UK vehicle dismantlers - free request, breakers with stock reply direct.
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Choosing the right used Peugeot 406 lambda sensor
Used lambda sensors vary between vehicles - and whether you call it used, second hand or a replacement, matching the right one matters. These are the details breakers need to match the right part to your car - our request form asks them so you only hear from suppliers with the correct part:
- State whether it's pre-cat or post-cat
- State whether it's petrol or diesel
Other used Peugeot 406 parts
- Used Peugeot 406 DPF
- Used Peugeot 406 Catalytic Converter
- Used Peugeot 406 Exhaust System
- Used Peugeot 406 EGR Valve
- Used Peugeot 406 Wiper Motor
- Used Peugeot 406 Fuel Filter
- Used Peugeot 406 Oil Pump
- Used Peugeot 406 Fuel Pump
- Used Peugeot 406 Anti Roll Bar
- Used Peugeot 406 Brake Master Cylinder
- Used Peugeot 406 Alternator
- Used Peugeot 406 Rear Light
Used lambda sensor for other Peugeot models
Fitment questions
Does the Peugeot 406 actually have a lambda sensor?
Yes, but only on petrol-engined 406s — the lambda sensor (also called an oxygen sensor) sits in the exhaust and helps the ECU control fuelling on petrol engines. Diesel 406s do not use a lambda sensor in the same way, so if you have a diesel 406 you will not find this part on your car. If you have a diesel and are chasing an exhaust-related fault, speak to your breaker about what sensors your specific diesel engine does carry.
Will a lambda sensor from an early 406 (1995–1999) fit a facelift 406 (1999–2004)?
The 406 ran from 1995 to 2004, with a facelift arriving in 1999 that brought some changes to the engine line-up alongside cosmetic updates. Petrol engines and their associated exhaust configurations can differ across that 1999 boundary, so a sensor from a pre-facelift car may not be a straight swap onto a post-facelift one even if it looks similar. You should confirm the engine code on both donor and recipient cars with the breaker before buying.
Does the trim level affect which lambda sensor I need — for example, does an LX differ from an SRi or a V6?
Trim level itself does not affect lambda sensor fitment — what matters is the engine code and fuel type, not whether the car is an LX, GLX, SRi, Executive, or ST. That said, the V6 variant uses a different engine to the four-cylinder petrols and is likely to use a different sensor position or sensor count, so always match on engine code rather than trim name. Your breaker will need your registration or engine code to confirm the right part.
How many lambda sensors does a petrol 406 have?
Most four-cylinder petrol 406s have at least one lambda sensor upstream of the catalytic converter, and some may also have a downstream sensor depending on the engine and emissions specification. The V6 engine may have a different arrangement again given its exhaust configuration. Confirm with your breaker exactly how many sensors your engine code requires so you source the right one for the position you need.
Does it matter whether I get a sensor from a 406 saloon or estate?
No — the body style (saloon or estate) does not affect the lambda sensor, because the sensor is determined by the engine and exhaust system rather than the body. A sensor from a petrol 406 estate with the same engine code as your saloon is the same part as far as fitment is concerned. Just make sure engine codes match and confirm with the breaker.
Will a lambda sensor from another Peugeot model fit my 406?
Peugeot did share engines and exhaust components across models in this era, so there is a possibility that a sensor from another Peugeot with the identical engine code could be compatible, but this is not something to assume. Exhaust routing, sensor thread size, and connector type all need to match, and getting this wrong could cause running problems or an MOT emissions failure. Route this question directly to your breaker, giving them both the donor model and your 406's engine code, and let them confirm compatibility.