318-1178 Speed Sensor Revolution Sensor Replacement for Caterpillar CAT Wheel Loader 950H 966H 972H 980H 988H 3181178

Product Overview The 318-1178 Speed Sensor Revolution Sensor is a critical diagnostic component designed for Caterpillar (CAT) Heavy Machinery. This versatile sensor is engineered to monitor both engine RPM and transmission speed (depending on specific model applications), providing real-time data to the vehicle’s electronic control module (ECM). By ensuring precise rotational speed tracking, it prevents erratic transmission shifting and engine performance drops, making it an essential maintenance replacement part for high-mileage commercial fleets. Technical Specifications Main OE Number: 318-1178, 3181178 Interchangeable Numbers: GS11006, 318-1178-00 Alternative Names: Sensor De Velocidade / Sensor De Rotacao Function: Transmission Speed / Engine Revolution Monitoring Connector: Standard CAT Heavy-Duty Sealed Plug Condition: 100% Brand New Premium Replacement Broad Vehicle Compatibility This sensor is specifically designed for the Caterpillar platform, primarily covering the following heavy-duty Wheel Loader series: Series Compatible Models & Applications CAT Wheel Loaders (G/H Series) 950G, 950G II, 950H, 962G II, 962H, 966G, 966G II, 966H, 972G, 972G II, 972H, 980H CAT Large Wheel Loaders 988G, 988H, 992G Series Other CAT Machinery Compatible with various CAT heavy-duty transmissions and engines requiring 318-1178 specs Key Benefits Dual-System Utility: Serves as a direct replacement for both engine revolution and transmission output shaft sensing units in CAT heavy machinery. High Thermal Stability: Built to withstand prolonged exposure to intense engine heat, high transmission oil temperatures, and harsh job site environments. Precision Accuracy: Prevents false “Speed Sensor Fault” dashboard codes and transmission slipping, ensuring smooth equipment operation under heavy loads. Easy Installation: Direct-fit design (matches OE 318-1178 specs) requires no wire splicing or special tools for setup. Cross-Reference Guide This sensor interchanges with the following original and aftermarket part numbers: CATERPILLAR: 318-1178, 3181178 AFTERMARKET CROSSES: GS11006 Maintenance Tip: If your CAT 966H or 972H Wheel Loader experiences erratic shifting, unexpected power drops, or throws a transmission speed fault code, inspect the sensor tip for accumulated metal debris or filings. We recommend cleaning the surrounding mount area and checking the O-ring seal during replacement to prevent oil leaks.