Product Description

SINOTRUK HOWO AMT WG9700240035 AMT Booster Cylinder is a key clutch assist and transmission control component designed for automated manual transmission systems to ensure stable shifting force, accurate clutch engagement, and improved gearbox operating efficiency.

This OE original-quality booster cylinder is commonly used in HOWO AMT heavy truck transmission systems where wear or pressure instability may cause delayed shifting, gear engagement failure, unstable clutch response, and increased transmission downtime.

Suitable for OEM replacement, truck gearbox overhaul, fleet maintenance, distributor sourcing, wholesale procurement, and export aftermarket shipment.

Product Overview

WG9700240035 is mainly used in SINOTRUK automated manual transmission assist systems.

Common applications:

• HOWO AMT gearbox repair

• Transmission assist cylinder replacement

• OEM maintenance

• Fleet gearbox overhaul

• Original-quality spare parts supply

• Ready stock shipment

• Export aftermarket procurement

Technical Parameters

Fitment Models

Common truck applications:

• SINOTRUK HOWO AMT Tractor Truck

• HOWO T7H AMT

• HOWO TH7 AMT

• SITRAK C7H AMT

Fitment Verification

Before order confirmation, verify:

• OEM No

• Gearbox code

• VIN

• Cylinder model code

• Mounting flange

• Push rod length

• Air port size

• Hydraulic interface

• Seal type

• Stroke length

• Housing mark

OEM Cross Verification (SINOTRUK Related)

Direct Fit

• HOWO AMT HW-series gearbox systems

• HOWO T7H AMT transmission

• HOWO TH7 AMT gearbox

• SITRAK C7H AMT applications

Can Be Adapted

• Matching SINOTRUK AMT gearbox platforms after interface check

• Fleet replacement after cylinder code verification

Similar But Not Compatible

• Manual gearbox clutch cylinders

• Different push rod stroke cylinders

• Different pneumatic port systems

• Different flange-mounted assist cylinders

• Different seal structure units

Common Field Failure Case

Case 1

Vehicle: HOWO T7H AMT Tractor Truck
Mileage: 520,000 km
Problem: Delayed gear engagement
Root Cause: Internal seal wear caused assist pressure loss
Solution: Replace WG9700240035 AMT booster cylinder
Result: Restored smooth shifting response

Case 2

Vehicle: HOWO TH7
Mileage: 610,000 km
Problem: Hard shifting and clutch lag
Root Cause: Cylinder stroke wear
Solution: Install OE-quality assist cylinder
Result: Improved transmission stability

Case 3

Vehicle: SITRAK C7H AMT
Mileage: 700,000 km
Problem: Air leakage after wrong replacement
Root Cause: Wrong interface and seal mismatch
Solution: Verify OEM + gearbox code before shipment
Result: Reduced downtime and repeat freight cost

Wrong Part & Export Transport Risk Control

Supplier Stability & Procurement Value

For distributors and fleet buyers:

• Original-quality supply

• Ready stock shipment

• Stable OE-grade sourcing

• Lower wrong replacement risk

• Reduce gearbox downtime

• Improve workshop repair efficiency

• Suitable for export batch orders

• Stable wholesale procurement

• Consistent installation reliability

Related Truck Parts

Directly Associated Parts

• AMT Clutch Actuator

• Gearbox Shift Valve

• Air Assist Hose

Same System Parts

• AMT Control Valve

• Gearbox Air Cylinder

• Clutch Release Bearing

Frequently Ordered Together

• Transmission Seal Kit

• Gearbox Mounting Gasket

• Air Connector Fitting

• Clutch Hose

Often Forgotten Parts

• O-rings

• Copper washers

• Lock nuts

• Seal rings

• Mounting bolts

Contact

William Du
Heavy Truck Spare Parts Supply
SINOTRUK HOWO | SITRAK Export Truck Parts
WhatsApp / WeChat: +86 19050562894
Email: Sales22@chinatruck.cc