Quick view VDO Kitas4 Smart tachograph sensor R1.21 - M18x1.5 - Element 113.8mm - With washer 2185-2000100004-A3C1008790021 Smart tachograph sensor Kitas4 R1.21 For VDO-Stoneridge-Bosch-EFAS Application datasheet on request Thread M18x1.5 - Male Sensor element 113.8mm with o-ring ISO15170 Plug 4-Pole Natural