Product Overview

Suitable for heavy-duty commercial truck transmission systems, the 17GA03-9 assembly is often applied in cargo trucks, dump trucks, tractor trucks, and engineering machinery drivetrain rebuilds.

It is frequently procured by fleet maintenance buyers, overseas truck parts distributors, and aftermarket rebuilders handling HOWO and SHACMAN transmission repair.

Technical Parameters

Parameter	Specification
OEM No	17GA03-9
Product Name	Transmission Assembly
Type	Heavy Truck Gearbox Assembly
Material	Cast Iron Housing + Alloy Steel Internal Components
Spline	Standard Transmission Output Spline
Teeth	Depends on internal gearbox ratio
Flange	Heavy Duty Output Flange
Side	Center Mounted
Weight	Heavy Assembly
Packing	Wooden Crate / Export Reinforced Packing
Application	Heavy Truck Transmission System

Fitment Models

Applicable common truck models:

SINOTRUK HOWO A7 Tractor Truck
SINOTRUK HOWO T7H Cargo Truck
SINOTRUK HOWO TX 6x4 Dump Truck
SHACMAN F3000 Tractor Truck
SHACMAN X3000 Cargo Truck
SHACMAN M3000 Dump Truck

Brand	Model	Engine	Fitment
SINOTRUK	HOWO A7	D12	Direct Fit
SINOTRUK	HOWO T7H	MC11	Direct Fit
SINOTRUK	HOWO TX	MC13	Verify Ratio
SHACMAN	F3000	WP10	Direct Fit
SHACMAN	X3000	WP12	Verify Bell Housing
SHACMAN	M3000	WP13	Verify PTO

Fitment Verification

Before order confirmation, verify:

VIN
Engine code
OEM No
Transmission ratio
Shaft size
Spline count
Flange pattern
PTO structure
Housing casting mark
Serial plate

OEM Cross Verification (Only SINOTRUK / SHACMAN / FAW / Weichai)

Direct Fit

SINOTRUK HOWO A7 gearbox platforms
HOWO T7H transmission repair platforms
SHACMAN F3000 transmission applications

Can Be Adapted

SHACMAN X3000 with flange or PTO adjustment
HOWO TX with ratio / housing verification
Weichai driven platforms requiring interface check

Similar But Not Compatible

Different spline gearbox output
Different bell housing size
Different PTO direction
Different transmission mounting layout

Common Field Failure Case

Case 1

Vehicle: HOWO 6x4 Dump Truck
Mileage: 420,000 km
Problem: Gear engagement shock and heavy noise under load
Root Cause: Internal bearing wear and gear backlash increase
Solution: Replace complete transmission assembly
Loss / Benefit: Reduced repeated teardown and restored fleet uptime

Case 2

Vehicle: SHACMAN F3000 Tractor Truck
Mileage: 610,000 km
Problem: Output shaft vibration and oil leakage
Root Cause: Housing fatigue + output flange wear
Solution: Replace full gearbox assembly
Loss / Benefit: Avoided secondary driveshaft damage and downtime loss

Case 3

Vehicle: HOWO TX Cargo Truck
Mileage: 380,000 km
Problem: PTO engagement mismatch after replacement
Root Cause: Wrong housing specification selected
Solution: Recheck serial plate + flange + PTO layout
Loss / Benefit: Reduced repeated export shipment cost

Wrong Part & Export Transport Risk Control

Risk	Customer Concern	Practical Solution
Wrong OEM No	Wrong assembly supplied	Cross-check OEM + serial plate
Wrong Spline	Output mismatch	Verify shaft spline count
Wrong Flange	Driveshaft mismatch	Confirm flange pattern
Wrong PTO	PTO installation failure	Check PTO direction and opening
Wrong Housing	Bell housing mismatch	Verify casting mark
Oil Leakage	Seal damage risk	Export protective wrapping
Broken Housing	Heavy transport impact	Wooden crate reinforcement
Export Damage	Long sea freight vibration	Foam + anti-impact packing

Supplier Stability & Procurement Value

For heavy truck aftermarket buyers and fleet maintenance sourcing:

Reduce wrong-part ratio in gearbox procurement
Reduce vehicle downtime from transmission failure
Lower repeated repair and labor teardown cost
Reduce repeated sea freight caused by wrong assembly supply
Improve fleet uptime and cargo continuity
Stable batch sourcing for distributors and workshop buyers
Delivery consistency for export aftermarket projects
Better transmission rebuild planning for long-haul fleets

Related Truck Parts

Directly Associated Parts

WG9003072215 Clutch Booster
AZ2203040008 Driveshaft Flange
DZ9114160020 PTO Related Housing

Same System Parts

WG2203250001 Gear Lever Assembly
AZ2203210106 Output Shaft Seal
DZ9112230175 Transmission Mount

Frequently Ordered Together

WG9925530014 Clutch Disc
VG1246090005 Flywheel Housing Related Parts
AZ9725520278 Propeller Shaft

Often Forgotten Parts

Output oil seals
Transmission mounting bolts
PTO gasket
Shift linkage bushings

Contact

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