1277022814 BMW X3 G01 2018 Diesel NOx Oxygen Lambda Sensors 1275101863.

Product Description:

The Diesel NOx and Oxygen Lambda Sensors for the BMW X3 G01 (2018) are key components in the exhaust emissions system, particularly for Euro 6-compliant diesel engines. These sensors measure nitrogen oxide (NOx) and oxygen (O₂) levels in the exhaust stream, allowing the engine control unit (ECU) to optimize fuel injection, AdBlue dosing, and emissions performance.

NOx Sensor (Part No: 1277022814): Measures nitrogen oxide levels before or after the SCR catalyst.
Oxygen Lambda Sensor (Part No: 1275101863): Monitors oxygen concentration in exhaust gases to maintain optimal air-fuel ratio.

Both sensors ensure smooth operation of the DPF, SCR, and EGR systems, reduce harmful emissions, and improve fuel efficiency.

Key Features:

Genuine or OEM equivalent fit for BMW X3 G01 Diesel
Part Numbers: 1277022814, 1275101863
Suitable for both upstream and downstream applications (verify with VIN)
Improves engine efficiency and reduces emissions
Plug-and-play installation

Compatibility Table:

Make	Model	Series	Engine Code	Year	Fuel Type	Sensor Type	Part Numbers
BMW	X3	G01	B47D20 (2.0L Diesel)	2018	Diesel	NOx Sensor	1277022814
BMW	X3	G01	B47D20 (2.0L Diesel)	2018	Diesel	O₂ Lambda Sensor	1275101863
BMW	X3	G01	B57D30 (3.0L Diesel)	2018	Diesel	NOx / O₂ Sensors	1277022814 / 1275101863

Note: BMW X3 G01 diesel models may have two NOx sensors (pre- and post-SCR). It is essential to match by OEM part number or VIN for exact fitment.

Key features

Genuine or OEM equivalent fit for BMW X3 G01 Diesel
Part Numbers: 1277022814 , 1275101863
Suitable for both upstream and downstream applications (verify with VIN)
Improves engine efficiency and reduces emissions
Plug-and-play installation

Compatibility Table:

Make	Model	Series	Engine Code	Year	Fuel Type	Sensor Type	Part Numbers
BMW	X3	G01	B47D20 (2.0L Diesel)	2018	Diesel	NOx Sensor	1277022814
BMW	X3	G01	B47D20 (2.0L Diesel)	2018	Diesel	O₂ Lambda Sensor	1275101863
BMW	X3	G01	B57D30 (3.0L Diesel)	2018	Diesel	NOx / O₂ Sensors	1277022814 / 1275101863

Note: BMW X3 G01 diesel models may have two NOx sensors (pre- and post-SCR). It is essential to match by OEM part number or VIN for exact fitment.

Shipping, returns and warranty

Worldwide shipping with tracking
30-day returns on unused, uninstalled parts
90-day limited warranty against defects

Send us your VIN and we confirm fitment before shipping. See our shipping policy and return policy.

BMW X3 G01 B57D30 (3.0L Diesel) 2018

1277022814 BMW X3 G01 2018 Diesel NOx Oxygen Lambda Sensors 1275101863