Forklift Charging Pump Assembly 91A24-10030 — F14E / 18C / L02 Series Powershift Transmission

The 91A24-10030 charging pump is the hydraulic supply pump for F14E, 18C, and L02 series powershift transmissions — it provides the pressurized transmission fluid that engages the clutch packs, lubricates the gear train, and feeds the torque converter circuit. This gear-type pump is driven directly from the transmission input shaft and delivers a constant flow of hydraulic oil at operating pressure the moment the engine starts. At 5.75 kg, this compact pump assembly generates the hydraulic pressure that makes the entire powershift transmission function — without it, no clutch engagement, no gear lubrication, and no torque converter operation. The 91A24-10030 is a direct bolt-on replacement for the OEM transmission charging pump and does not require adapter plates or hydraulic circuit modifications.

This charging pump fits forklifts equipped with F14E, 18C, and L02 series powershift transmissions — commonly found on TCM, HELI, and other Chinese-brand forklifts in the 2-5 ton capacity range. The pump mounting flange bolt pattern and input shaft drive coupling are identical across the F14E/18C/L02 transmission variants. Common failure symptoms include: complete loss of forward and reverse drive (pump has failed and no hydraulic pressure reaches the clutch packs); delayed or sluggish clutch engagement (worn pump gears cannot build full operating pressure quickly); transmission overheating within minutes of operation (insufficient fluid flow through the cooler circuit); whining noise from the transmission that increases with engine RPM (worn pump gears or cavitation from restricted suction line); and metal particles in the transmission fluid filter (pump gear or housing wear debris). The charging pump is not field-rebuildable — internal gear clearance is critical and the pump must be replaced as a complete assembly.

Installation requires draining the transmission fluid, removing the transmission pan or access cover to reach the pump mounting location, and unbolting the pump from the transmission case. The pump drive coupling must be inspected for wear before installing the replacement pump — a worn coupling will damage the new pump’s input shaft within the first operating hour. Always replace the pump mounting O-ring or gasket and fill the pump cavity with clean transmission fluid before final assembly to prevent dry start-up damage. Flush the transmission cooler circuit and replace the transmission filter during this service. For related transmission components, browse our Forklift Hydraulic Transmission Parts catalog.

Technical Specifications

Compatible Forklift Models

Each charging pump is 100% genuine parts tested and packaged for safe freight. Standard air delivery to major ports worldwide. For compatibility verification or bulk orders, contact our team with your transmission model number.