Product Introduction

The WG9725230041 clutch booster (black type) is a heavy-duty pneumatic-hydraulic clutch servo component used in SINOTRUK HOWO manual transmission systems. It is installed between the clutch master cylinder and the clutch release mechanism to assist driver input force, making clutch operation smoother and reducing pedal effort during frequent shifting conditions.

This clutch booster uses compressed air from the vehicle’s pneumatic system combined with hydraulic control to amplify the force applied by the driver. When the clutch pedal is pressed, hydraulic oil and air pressure work together to actuate the internal piston assembly, which then assists in disengaging the clutch smoothly and efficiently.

The WG9725230041 is widely used across HOWO, HOWO A7, and other heavy-duty truck platforms equipped with Weichai and SINOTRUK powertrains. It is especially suitable for high-load operating environments such as logistics fleets, construction transport, and mining trucks where frequent gear shifting is required.

Built with a reinforced aluminum/iron housing and precision sealing system, this clutch booster ensures stable pressure control, strong durability, and reliable performance even under harsh working conditions. Each unit is tested for pressure response, sealing integrity, and fatigue resistance to ensure OEM-level reliability.

Technical Specifications

Vehicle Fitment

Payment & Shipping

Related Products Categories

Engine Parts System

Transmission & Drivetrain Parts

Chassis & Suspension Parts