2003 Mack MR Gauges
- Dorman HD Solutions®Tachometer SensorMack MR600K / MR600P With Magnum 430HP Engine 2003, Tachometer Sensor by Dorman HD Solutions®. Dorman HD Solutions has all the components needed for a complete repair. Quickly and easily installed, it eliminates the clunking noise that...Easy to installDirect replacement for a proper fit$34.83