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China Auto Transmission System Application FAW J5/J6 Truck Parts 1602300-D149E Clutch Slave Cylinder

The 1602300-D149E Clutch Booster Assembly (commonly known as a clutch servo cylinder or pneumatic-hydraulic assist unit) is a high-efficiency power-assist device used in the clutch system of FAW Jiefang J5, J6, Tiger VH, and related commercial vehicles. It combines air pressure and hydraulic force to significantly reduce the pedal effort required by the driver during clutch engagement and disengagement.

This booster plays a crucial role in improving driving comfort — especially in urban delivery, frequent stop-start operations, and long-haul transportation where smooth, effortless shifting is essential. By amplifying the input from the clutch master cylinder using compressed air from the vehicle’s braking system, it ensures rapid and complete clutch separation with minimal physical strain on the operator.
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  • 1602300-D149E

  • FAW

Attribute Specification
Product Name Clutch Booster Assembly / Clutch Servo Cylinder
Part Number 1602300-D149E
Alternative Numbers 1608010-T38H0, 1602300-D149E/B, 1602300-392, 1602300-392J
Type Pneumatic-Hydraulic Assist (Air-Over-Oil Type)
Primary Function Amplifies hydraulic pressure from clutch master cylinder using air pressure to actuate release bearing
Main Material Die-Cast Aluminum Housing, High-Strength Steel Piston Rod & Internal Components
Sealing Material Fluororubber (FKM/Viton®), heat & oil resistant
Weight 2.3 kg – 2.8 kg
Vehicle Application FAW Jiefang J5, J6P, J6L, JH6, Tiger V / Tiger VH Series
Model Years Widely used from 2010 – Present (especially in export and domestic fleet models)
Certification Complies with ISO/TS 16949 Quality Management System
离合器助力器总成-1


离合器助力器总成-2


Parameter Value
Operating Principle Pneumatic-hydraulic amplification (air pressure drives hydraulic output)
Working Medium DOT 3 or DOT 4 Brake Fluid + Compressed Air
Air Pressure Range 0.6 MPa – 0.8 MPa (87 – 116 psi)
Hydraulic Output Pressure Up to 3–5× input pressure (depending on piston ratio)
Dimensions (Approx.) 245 mm × 110 mm (length varies slightly with pushrod extension)
Mounting Style Bracket-mounted with rigid connections
Air Inlet Thread M16×1.5 or M12×1.5 (standard metric threads)
Hydraulic Port Size Standard -6 AN / 9.5mm OD tube compatible
Temperature Range -40°C to +80°C (-40°F to 176°F)
Packaging Dimensions 10×10×25 cm or 53×12×12 cm (varies by supplier/packaging method)


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