Land Rover Range Rover Rear Oxygen Sensor MHK500850 Direct Replacement Part

Land Rover Range Rover rear oxygen sensor MHK500850, designed for 4.4L or 5.0L engines from 2010–2022, can be replaced directly without wiring changes. It monitors exhaust oxygen concentration in real time; ECU adjusts ignition timing and fuel injector pulse width accordingly to ensure proper combustion. Replacing reduces black smoke and power loss caused by overly rich mixtures. If the instrument cluster shows check engine and fuel consumption rises, the sensor can no longer provide accurate voltage signals.