Part Numbers: 266-8577 / 2668577 (OEM-Compatible)
Application: CAT Engines 621H/K, 623H/K Series
Signal Type: Passive AC Output (0.5-60V)
Operating Temp: -40°C to +125°C
IP Rating: IP67 Water/Dust Resistance
Optimized for CAT 621H/K scrapers and 623H/K loaders – essential for real-time RPM monitoring in demanding earthmoving operations .
Compatible with CAT-powered mining trucks, ensuring accurate gearbox speed detection for fleet management systems .
Validated for combine harvesters using CAT C7.1/C15 engines – critical for PTO speed control .
±0.5% linearity error ensures reliable data for ECM decision-making in critical operations .
Vibration resistance up to 20g @ 2000Hz
Chemical-resistant TPU encapsulation
Shock-proof mounting bracket design
Intermittent RPM reading at low speeds (＜300RPM) leading to transmission errors .
Verify sensor-air gap (0.8-1.2mm specification)
Clean magnetic debris from target wheel
Replace with genuine 266-8577 sensor
ECM recalibration using CAT ET software
As your engineering machinery parts specialist, we provide:
24hr global shipping for construction/heavy truck sectors
OEM-grade quality control (ISO 9001 certified)
Technical support in 8 languages
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