Throttle Position Sensor 550389 Compatible With D250 D350 W250 W350 5.9L Engines 3618837 4638631 4728881 4746965 4746965AB 4746966 TH245 High Precision Hall Sensor For A Snappy Throttle Feel And Quick Response
✔️ High-precision Hall sensor enables fast response and smooth idle
This throttle position sensor (TPS) 550389 is a direct-fit replacement designed for D250, D350, W250, and W350 pickups from 1989-1993 with the 5.9L engine. It uses a Hall-effect sensor to deliver accurate throttle position signals to the ECU, helping to deliver snappy throttle response, stable idle, and smoother driving experience.
✅ Sensor Type: Hall-effect
✅ Compatibility: D250/D350/W250/W350 (1989-1993) 5.9L
✅ OEM NO.: 550389
✅ TH245 high-precision design for snappy throttle feel
✅ Repeatability: 4728881
✅ Hysteresis: 4746965AB, 4746966 TH245
✅ Linear: 3618837
✅ Measuring Range: 4746965
✅ Resolution: 037 907 385N / 037-907-385-N
✅ Sensitivity: 4638631
💡 What is a throttle position sensor and why upgrade? - It tells the ECU where the throttle is so you get smooth acceleration - It reduces pedal lag and idle jitter for a steadier drive - It improves throttle response and engine control at startup and under load