(Nitrogen oxide sensor, Air pollution control)

Complete, incl. probe and module - L=615mm

DIESEL w/ BlueTec (code U42, U77)
E-Class w/ OM642 fits FRONT up to A295299
E-Class w/ OM651 fits REAR
M-Class fits FRONT
GL-Class fits FRONT
R-Class fits FRONT & REAR
Sprinter fits UPSTREAM & DOWNSTREAM OF PARTICULATE FILTER/CATALYTIC CONVERTER (4WD MODELS, ONLY FITS FRONT)

GAS w/ additional emission control (code 920)
M-Class fits RIGHT (req. 1)
SLK-Class fits FRONT (req. 2)