Quick view VDO Kitas4 Smart tachograph sensor - Element length 19.8mm - 2185-2000030 VDO 2185-2000030004-A3C1008700021 Smart tachograph sensor: Kitas4 Replaces Kitas 2+ 2171-20000315 Brands: See specifications Thread: M18x1.5 Sensor (L) = 19.8mm Available soon