Forklift Torque Converter 4168034034 – CLG856 LG956 ZL50G

Forklift Torque Converter SP100285 / 4168034034 — CLG856, LG956, ZL50G Wheel Loader, 25kg

This is the torque converter (part number SP100285, old reference 4168034034 / 0899005051) for CLG856, LG956, and ZL50G wheel loaders — a heavy-duty hydraulic torque converter that transmits and multiplies engine torque to the transmission input shaft through a fluid coupling. The torque converter is the component that replaces a mechanical clutch in powershift and automatic transmissions — it uses a fluid coupling (impeller pump, turbine, and stator) to transmit torque from the engine to the transmission while providing torque multiplication during acceleration and load conditions. The torque converter’s three elements are housed in a sealed metal casing filled with transmission fluid: the impeller (connected to the engine flex plate/flywheel) pumps fluid outward by centrifugal force, the fluid strikes the turbine blades (connected to the transmission input shaft) and transfers rotational energy, and the stator (mounted on a one-way clutch between the impeller and turbine) redirects the fluid returning from the turbine back to the impeller at an angle that multiplies torque — this torque multiplication (typically 2.0-2.5× engine torque) is what gives a powershift forklift or wheel loader its ability to push into a pile of material or climb a grade without requiring the operator to slip a clutch. A failed torque converter — from worn impeller or turbine blades (cavitation erosion from contaminated or low fluid), a seized stator one-way clutch (prevents torque multiplication), or a damaged flex plate connection (cracked bolt holes) — causes transmission overheating, loss of pushing power, and eventual complete loss of drive. The torque converter must be filled with the correct specification and quantity of transmission fluid before operation.

LGMC brand, manufactured in Guangxi, China. 25 kg net weight, 15 kg gross shipping weight (30×30×25 cm package). Part number SP100285, old reference 4168034034 / 0899005051. Distribution group: transmission. Application: CLG856, LG956, and ZL50G wheel loaders. When replacing a torque converter, always flush the transmission oil cooler and lines to remove debris from the failed converter — metal particles from a failed converter will destroy the new converter’s impeller and turbine blades within hours. Fill the converter with clean transmission fluid before installation. Verify the flex plate bolt circle pattern matches the converter — a single misaligned bolt hole prevents installation. Torque the flex plate-to-converter bolts to specification. Replace the transmission filter and fluid after converter replacement. Prime the transmission by cranking the engine with the fuel shut off until transmission pressure registers on the gauge.

Compatible with CLG856, LG956, and ZL50G wheel loaders. Browse our torque converter selection. Visit LiuGong official website.

Technical Specifications

Compatible Models

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