Sinotruk 082V27421-0623 Mass Air Flow Sensor

The 082V27421-0623 is a hot-film type mass air flow (MAF) sensor designed for heavy-duty commercial vehicles compliant with China National Stage VI emission standards. It integrates a temperature compensation circuit and provides a digital PWM output signal proportional to the intake air mass flow rate. The sensor housing is constructed from high-temperature resistant polymer with a flanged mounting interface for direct installation into the intake pipe. It operates on a 24V vehicle electrical system with a regulated 5V sensor supply. This unit replaces the Siemens VDO TF4BG719510575 and is calibrated for MAN D20 and D26 series natural gas and diesel engines equipped on Sinotruk and FAW platforms. Technical validation includes response time under 10ms, measurement accuracy within +/- 2% of reading across the operating range, and resistance to vibration per ISO 16750-3 for heavy-duty truck applications. The connector interface features a 5-pin sealed configuration ensuring IP6K9K protection against high-pressure washing and environmental ingress.