Volvo FH4/FM4 ESP Yaw Rate Sensor 12V 21167238 K020568N07 23977126 Euro 6

Description:
This listing is for a used genuine Knorr-Bremse/Bendix ESP yaw rate sensor 12V for Volvo Euro 6 commercial vehicles. The OEM Volvo part number is 21167238 (also referenced as 7421167238 and 23977126), with Knorr-Bremse numbers K020568N07 and K020568N50 and Bosch reference 0 273 014 009/049. This sensor forms part of the electronic stability programme (ESP) and ABS/traction control system, measuring yaw rate and lateral/longitudinal acceleration to assist the braking ECU in maintaining vehicle stability.

The unit matches catalogues and online listings that designate 21167238 as an ESP/yaw rate sensor for Volvo FH4/FM4/FM, FE and FL Euro 6 trucks and some Renault T and C Range vehicles. It is a chassis-mounted module with a 5-pin electrical connector and clearly marked driving direction and mounting orientation (“THIS SIDE ON TOP”). Operating voltage is 12V, suitable for vehicles with 24V main systems where the ESP ECU provides a 12V sensor supply.

This particular sensor was removed from a running truck and the ESP/ABS system was checked on the vehicle prior to dismantling; no ESP or ABS fault codes were present, confirming correct sensor operation at the time of removal. After removal, the part was visually inspected and cleaned. There are typical signs of use such as light dirt, small scratches on the housing and some surface rust on the brass/steel mounting inserts, but no cracks or structural damage. The connector housing and pins are in good condition with no corrosion or broken guides.

Installation should be carried out by a competent technician. The sensor must be mounted in the correct orientation following the arrows and TOP marking on the label and casting. On many Volvo/Renault applications, an ESP calibration or zeroing procedure using a diagnostic tool (Tech Tool or equivalent) is required after replacement to ensure correct system operation and to clear any stored fault codes.

This is an ideal replacement for a failed or intermittently faulty ESP yaw rate sensor causing ABS/ESP warning lamps, stability control errors or related diagnostic trouble codes. Compatible Volvo applications include FH4 and FM4 tractor and rigid models from approximately 2013 onwards, many FE/FL distribution trucks, and selected Renault T/C/K Euro 6 vehicles and Volvo buses that use the Knorr-Bremse K020568N07 sensor. Please compare part numbers and connector style with your original unit before purchase. Photos in the listing show the exact sensor you will receive.

Shipping & Returns:
We ship across UK/EU with tracked services. Returns accepted within 30 days; buyer pays return postage. Please inspect upon arrival and message us with any concerns.

Why Buy From Us:
Genuine part, 3-month warranty, fast dispatch, secure packaging.