SINOTRUK HOWO Transmission / Gearbox System Parts Input Shaft Assembly AZ2203020103 for HW15710
SINOTRUK HOWO Transmission / Gearbox System Parts Transmission Input Shaft Assembly AZ2203020103 for HW15710 Gearbox
The SINOTRUK HOWO AZ2203020103 Transmission Input Shaft Assembly is a core drivetrain component designed for heavy-duty commercial vehicle gearboxes. Serving as the input shaft and first gear assembly, it is responsible for transferring engine power and torque into the transmission gear system, delivering the smooth, reliable power flow required under demanding truck operating conditions.AZ2203020103 is supplied as a complete input shaft assembly rather than a single shaft component. According to SINOTRUK parts documentation, the assembly structure incorporates the WG2210020105 Input Shaft and the WG2229020005 Bushing, providing a ready-to-install unit that simplifies replacement and reduces downtime during gearbox repair and overhaul. This assembly is listed in the SINOTRUK parts catalog for the HW15710 transmission, making the gearbox model an essential reference for compatibility verification. The OEM reference number AZ2203020103 offers a direct and precise identification method for truck parts distributors, repair workshops, and fleet maintenance buyers, helping them clearly distinguish this assembly from other HOWO transmission input shafts. Engineered for heavy-duty truck transmission applications, the AZ2203020103 Input Shaft Assembly is suitable for gearbox repair, overhaul, and component replacement. It is an ideal choice for truck parts distributors, repair shops, and fleet maintenance operations. Before ordering, buyers are advised to verify the original part number and gearbox model to ensure correct application.
Product Specification
| Product Name |
Input Shaft Assembly |
|---|---|
| Gearbox |
HW15710 |
| Part Number |
AZ2203020103 |
| Main Shaft |
WG2210020105 |
| Bushing |
WG2229020005 |
| Condition | New |
| Origin | China |
| Quality Standard | 100% Tested |
| Quality Certification | ISO, CCC, GSO, CE, SGS, TUV |
| Weight | 4.2 KG |
| Dimensions |
330 mm × 90 mm × 90 mm |

Q1: What causes the input shaft spline to wear or burn?
The splines at the front end of the input shaft mesh directly with the center hub of the clutch-driven disc (friction plate). Under prolonged overloading or clutch overheating, the spline grooves can suffer excessive wear or deformation. This typically leads to weak power delivery when engaging gears, vehicle shuddering, or even complete transmission failure.
Q2: How can I confirm whether AZ2203020103 fits my truck?
Check the original OEM number and gearbox model first. For additional confirmation, compare the existing input shaft assembly with the product dimensions, spline configuration, and component arrangement before purchase.
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