Part Number: 247-5212 247-5213 247-5211 227-7672 227-7667 227-7672 309-5954 221-8767 227-7372Application Models ：for Caterpillar E320C E320D E312C E312D E330D 312C 312CL 318C 320CFM 320CL 320D 320C 323DL 323DLN 323DSBuilt with high-performance full copper core motor, heavy-duty aluminum alloy housing and precision wear-resistant alloy steel gears, delivers stable torque and ultra-precise speed control, resistant to high temperature, heavy vibration, oil corrosion and dust, ensuring long-lasting reliable performance in harsh mining, construction and forestry job site environments.Standard 24V DC OEM specification, available in 5-pin and 7-pin connector options to match the original throttle motor of your CAT C/D series excavators, pre-calibrated before delivery to ensure consistent throttle response and rock-solid idle stability, completely eliminating common issues like speed hunting, unresponsive control, intermittent failure and idle fluctuation.IP67 fully sealed waterproof and dustproof design, integrated high-precision throttle position feedback sensor, accurately transmits real-time throttle opening data to the excavator ECU, maintains precise engine speed control under all load conditions, effectively improving fuel efficiency and reducing unnecessary fuel consumption during long-term operation.