Sinotruk Parts Catalog: Complete Reference

Navigating the extensive range of components for heavy-duty trucks requires a reliable and comprehensive reference. The Sinotruk Parts Catalog serves as the definitive guide for identifying genuine components across all Howo models, from engine internals to cab accessories. For fleet operators and mechanics alike, having access to accurate part numbers and specifications is essential for efficient maintenance and repair. When it comes time to order, using genuine sinotruk howo parts ensures perfect fit and long service life. In this guide, we explore how to use the Sinotruk Parts Catalog effectively and highlight key component groups with detailed specifications.

Sinotruk Parts Catalog – printed and digital reference guide Sinotruk Howo genuine parts – engine and transmission components

Sinotruk Parts Catalog: Engine Component Section

The engine section of the Sinotruk Parts Catalog covers all major assemblies for the WD615, WD612, D10, and MC series powerplants. For the widely used WD615 Euro III engine, critical components include the cylinder block assembly (VG1500010185) and cylinder head assemblies (61500040058). The catalog provides exploded views with numbered callouts, making it easy to identify components such as the crankshaft gear (VG1500019014) and power take-off housing (AZ1500019031). Each entry includes the official part number, description, and quantity required per assembly, ensuring accurate ordering.

For the T10 natural gas engine series, the Sinotruk Parts Catalog includes detailed listings for cylinder body assemblies (AZ1540010004) and specialized components such as camshaft bushings (VG1560010029) and main bearing bolts (VG14010114). This level of detail allows technicians to rebuild engines with confidence, knowing they are selecting the correct components for specific applications.

Sinotruk Parts Catalog: Engine Component Table

Component CategoryPart NumberDescriptionEngine Series
Cylinder BlockAZ1540010010Cylinder body (CNG)T10 LNG/CNG
Cylinder Head61500040058Branching cylinder head assemblyWD615-II
Cylinder LinerVG1500010344Cylinder linerWD615
Crankshaft GearVG1500019014Crankshaft gearWD615 Euro III
Flywheel HousingAZ1500019035Flywheel housingWD615 Euro III
Connecting Rod6150324701Connecting rod and piston assemblyWD615
Camshaft BushingVG1560010029Camshaft bushingT10
PTO HousingAZ1500019031Power take-off housingWD615
Main Bearing BoltVG14010114Main bearing boltsT10
Valve Guide61560040051Air valve guide pipeWD615-II

Comprehensive Coverage

The Sinotruk Parts Catalog includes every system: engine, transmission, axles, cab, electrical, and chassis components.

Exploded Diagrams

Detailed illustrations with numbered callouts make identification quick and accurate for technicians.

Standardized Numbers

Consistent part numbering system (WG/AZ/VG prefixes) ensures correct ordering worldwide.

Sinotruk Parts Catalog: Transmission & Axle Sections

The transmission section of the Sinotruk Parts Catalog provides detailed breakdowns of gearboxes such as the HW19710 and HW19712T. For the HW19710T range gear, components like the planet carrier (AZ2203100105), planetary wheel (AZ2210100012), and synchronizer ring (WG2203100107) are listed with exact quantities and positions . This level of detail is essential for rebuilding gearboxes and ensuring proper assembly. The catalog also includes deputy case components for the range gear, with over 70 individual parts identified.

For front axles, the Sinotruk Parts Catalog includes complete assemblies such as the HF9 9‑ton front axle (AZ9100413007) and all constituent parts . The second-generation disk brake section lists components like the front left brake chamber (WG9100360410) and brake block (WG9100443050) with their respective fasteners. Tie rod arms, knuckle pins, and wheel bearings are all cataloged with cross-references to related assemblies.

Sinotruk Parts Catalog: Transmission & Axle Components

Component CategoryPart NumberDescriptionAssembly
Front AxleAZ91004130079 ton front axle assemblyHF9
KnuckleAZ9100413002Knuckle (left)HF9
Brake ChamberWG9100360410Front left brake chamber 22″Disk brake
Brake BlockWG9100443050Brake blockDisk brake
Planet CarrierAZ2203100105Planet carrier assemblyHW19710T
Synchronizer RingWG2203100107Synchronizer ring for range gearHW19710T
Planetary WheelAZ2210100012Planetary wheelHW19710T
Output FlangeAZ2210100028Output flangeHW19710T

Using the Sinotruk Parts Catalog for Maintenance

The Sinotruk Parts Catalog is an indispensable tool for planned maintenance programs. By referencing the catalog, maintenance teams can identify wear items such as the lifter assemblies (WG1612330003) for cab doors or the seal strips (WG1612330015) that require periodic replacement . The catalog also includes hardware like cross flute screws (Q2140610) and plastic rivets (WG1642930005), ensuring that even small fasteners are correctly specified .

For major overhauls, the Sinotruk Parts Catalog provides complete subassembly listings. The cylinder head section for WD615-II engines includes 33 individual components, from the head itself (61500040040) to valve stem seals (61560040032) and injector bushings (61560040049) . Having this level of detail prevents missing parts during assembly and ensures that all necessary components are ordered before work begins, minimizing vehicle downtime.

Sinotruk Parts Catalog: Cab & Electrical Sections

The cab section of the Sinotruk Parts Catalog covers everything from door assemblies to interior trim. For the Howo A7, door components are extensively cataloged, including left and right glass lifter assemblies (WG1642330003, WG1642330004), door handles (WG1642330001), and inner/outer seals (WG1642330011, WG1642330013) . The catalog also includes the door protection layer (AZ1642330019) and membrane (AZ1642330051), which are essential for weather sealing and noise insulation .

Electrical system components are similarly detailed. The Sinotruk Parts Catalog lists sensors such as the input shaft speed sensor (WG2209280005) and four-circuit protection valves (WG9000360523) for the air brake system. For the T10 engine, the catalog includes the entire cylinder block assembly with all associated plugs, dowels, and seals . This comprehensive approach ensures that electrical and electronic components can be accurately identified and replaced with genuine parts.

Summary: The Sinotruk Parts Catalog is the definitive reference for maintaining and repairing Howo trucks. With detailed exploded views, comprehensive part numbers, and coverage of every vehicle system, it enables accurate identification and ordering of genuine components. Whether you are servicing a WD615 engine, rebuilding an HW19710 transmission, or repairing cab doors, the catalog provides the information you need to get the job done right.


From engine blocks to door seals, the Sinotruk Parts Catalog contains every genuine component you need to keep your Howo trucks operating at peak efficiency. Our inventory includes all parts listed above, backed by the manufacturer’s warranty and quality guarantee. Whether you need a complete cylinder head assembly, transmission rebuild kit, or simply replacement fasteners, we can supply the correct parts from the catalog. Contact our team for expert assistance in navigating the Sinotruk Parts Catalog and selecting the right components for your application.