1/14 RC Skip Loader Truck VL18U F2000 Model Body Parts. Hydraulic System with a 4-way Reversing Valve (The Hydraulic Pump ESC is not included). Hydraulic Pump ESC. Hydraulic Oil. It is fitted with a high-quality 4-way reversing valve, enabling the hydraulic systems for raising and tilting the bucket, supporting legs at the rear of the vehicle, and extending the cargo board backward.