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Temperature Resistant Clutch Booster 1608N29-001 Suitable for DONGFENG Tianjin N29 Truck

The Clutch Booster Assembly (Part No. 1608N29-001) is an OEM-specified pneumatic-hydraulic actuator designed specifically for Dongfeng medium- and heavy-duty commercial vehicles. Also known as a clutch slave cylinder with air assist or clutch power booster, this component significantly reduces pedal effort by combining hydraulic input from the master cylinder with amplified pneumatic force from the vehicle’s air system.

As a key part of the clutch operating system, it enables smooth gear shifting under full load conditions, improves driver comfort, and enhances operational safety—especially in stop-and-go transport and construction environments. Widely used across China's logistics and infrastructure sectors, this booster is standard equipment on many Dongfeng platforms meeting China V and China VI emission standards.
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  • 1608N29-001

  • Dongfeng

Attribute Specification
Product Name Clutch Booster Assembly / Pneumatic-Hydraulic Clutch Slave Cylinder
Manufacturer Dongfeng Original Equipment; commonly supplied by SORL (Ruili Group)
Primary Part Number 1608N29-001
Alternative Designation Clutch Assist Cylinder, Air-Assisted Slave Cylinder
Operating Principle Dual-stage: Hydraulic signal + Pneumatic amplification
Mounting Type Direct bolt-on to transmission housing or clutch fork lever
Actuation Method Converts fluid pressure into mechanical push-rod motion
Housing Material Precision die-cast aluminum alloy or ductile cast iron
Internal Seals High-wear-resistant NBR or FKM rubber seals
Application Class Medium- to Heavy-Duty Commercial Trucks & Special Chassis
离合器助力器-3


离合器助力器-1


Parameter Value / Detail
Booster Cylinder Bore Diameter Φ105 mm (commonly referred to as "105mm booster")
Maximum Operating Air Pressure 0.8 – 1.0 MPa (116 – 145 psi)
Hydraulic Input Source From clutch master cylinder (hydraulic line)
Working Medium Compressed air + Brake fluid (DOT3/DOT4)
Fluid Capacity ~150–200 ml (varies with system length)
Push Rod Stroke Typically 25–35 mm (exact value depends on transmission type)
Assist Ratio High-efficiency design reduces pedal force by 50%–80%
Weight Approx. 2.5–3.5 kg (5.5–7.7 lbs)
Connection Types
- Air Inlet Quick-connect or threaded air fitting (usually 6–8mm tube)
- Hydraulic Port 1/8" NPT or M10×1 thread for brake line
- Output Linkage Clevis pin or ball joint connected to clutch release lever


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