HOWO Transmission & Gearbox Parts Specialist
HOWO Gearbox Parts Supplier
SINOTRUK Transmission Spare Parts
Professional supplier of complete HOWO gearbox assemblies, transmission components, synchronizers, shift mechanisms, and drivetrain parts for SINOTRUK HOWO heavy-duty trucks. OEM-standard quality with global export and technical support.
Complete Gearbox Assemblies
OEM Part Numbers Matched
Front/Main/Idler Shafts
Synchronizers & Gears
AMT Range Gearboxes
Global Export Service
Compatible HOWO Truck Models
Our gearbox spare parts fit a wide range of SINOTRUK HOWO heavy-duty truck series
HOWO A7 Series
Flagship tractor trucks and dump trucks with HW19710 / HW19712 manual and AMT gearboxes. 6x4, 8x4 configurations.
HOWO T7H & T5G Series
Advanced SINOTRUK platform with 10-speed and 12-speed transmissions. Model years 2014 to present.
HOWO TX & NX Series
Economy truck series using HW90510 / HW13710 gearboxes. Widely deployed in African, Middle Eastern, and Asian markets.
OEM Number Matching
Provide your VIN or OEM part number and our technical team verifies compatibility through the official SINOTRUK EPC system.
HOWO Gearbox Parts Range
Complete transmission and drivetrain components for maintenance, repair, and overhaul
Gearbox Assemblies & Housings
- Complete gearbox assembly units
- Front housing assembly (AZ2203000001)
- Main housing / center housing (AZ2220010003)
- Rear housing with range gearbox
- Housing gaskets and sealing kits
- Drain plug assemblies (WG2203010002)
- Locating pins and studs
- Housing bearing seats and bushings
Input Shaft & End Cap Assembly
- Input shaft and gear assembly (AZ2203020007)
- Input shaft (AZ2210020111)
- Drive gear — low range (AZ2210020112)
- Input shaft end cap with oil guide ring
- Oil seal PS 55x75x12 (AZ9003070055)
- Ball bearing 6213N (AZ9003326213)
- Snap ring / retaining ring set
- Input bearing adjustment shim group
Countershaft Assembly
- Countershaft left assembly (AZ2203030001)
- Countershaft right assembly (AZ2203030005)
- Countershaft 3rd gear
- Countershaft drive gear — high
- Countershaft drive gear — low
- Cylindrical roller bearing NUP309E
- Long parallel key (WG2229030001)
- Shaft retaining ring Q43170 / Q43145
Main Shaft Assembly
- Main shaft complete assembly (AZ2203040001)
- Main shaft with ball head (WG2203040201)
- Drive gear — high range (WG2210040003)
- Main shaft 1st / 2nd / 3rd / reverse gears
- Main shaft sliding sleeves (WG2210040210)
- Snap rings and spline retainers
- Reverse sliding sleeve (WG2210040211)
- Main shaft adjustment shim group
Synchronizers & Shift Components
- Split-range synchronizer cone hub (WG2210020003)
- Synchronizer rings (WG2210020004)
- Synchronizer sliding sleeve (WG2210020005)
- Synchronizer push blocks (WG2229020001)
- Push block outer/inner springs
- Shift forks for 1st/2nd, 3rd/4th, reverse
- Shift fork shafts (WG2212220001-3)
- Gear selector blocks and detents
Range Gearbox (AMT)
- Range gearbox assembly (AZ2203100030)
- Planetary carrier assembly (AZ2203100002)
- Sun gear and hub assembly
- Planetary gears and shafts
- Inner gear ring and support (WG2210100006)
- Range synchronizer hub (WG2210100007)
- Range sliding sleeve / synchro rings
- Output flange with face spline (WG2210100018)
Bearings, Seals & Gaskets
- Ball bearings 6218 / 6020 / 63/22
- Cylindrical roller bearings NUP309E
- Needle roller bearings K455320
- Oil seals — multiple sizes (PS/TC type)
- O-rings — full range (GB3452.1 standard)
- Paper gaskets for all housing joints
- Composite sealing washers
- Copper / aluminum crush washers
Oil Pump, Piping & Lubrication
- Oil pump assembly (WG2203240005)
- Oil outlet / inlet pipe assemblies
- Input shaft oil feed pipe
- Brake oil feed pipe (AZ2203240010)
- Range box oil feed pipe (AZ2203240008)
- Oil filter screen assembly (WG2203240007)
- Hollow bolts and sealing washers
- Oil cooler and cooler cover gaskets
Idler Shaft Assembly
- Idler shaft left / right (WG2212050001/2)
- Idler gear (WG2210050001)
- Needle roller bearings K455320
- Idler shaft spacer washers
- Idler gear parameter cards
- Thrust washers
- Shaft retaining rings
- Idler shaft bore bushings
Braking Components
- Brake end cap assembly (AZ2203060005)
- Transmission brake discs (WG2229060010)
- Brake friction plate assemblies (WG2209060005)
- Brake piston (AZ2229060020)
- Brake support bracket (AZ2203260010)
- Brake return spring
- Pneumatic brake pipe assembly
- Brake air line connectors
Clutch Operating Assembly
- Clutch release fork shaft (WG2203260106)
- Clutch release fork (WG2214260001)
- AMT booster cylinder bracket
- Parallel keys (Q5510825)
- Shaft retaining ring (Q43130)
- Solenoid valve bracket (AZ2229060040)
- Access cover plate
- Hex bolts and spring washers
Electrical & Sensor Components
- Input shaft speed sensor (WG2209280005)
- Output shaft speed sensor (WG2209280006)
- Odometer sensor (WG2209280010)
- Solenoid valves (VG1557090015)
- Sensor O-rings (AZ9003070005)
- Temperature sensors
- Position sensor pins
- Wiring harness connectors
Shift Cover & X-Y Actuator
- X-Y actuator assembly (WG2209210001)
- Actuator adapter plate (AZ2229210038)
- Adapter plate gasket
- Locating guide bushings
- Small cover paper gasket
- Vent pipe assembly (WG2203210018)
- Socket cap screws and bolts
- Thread locking compound LOCTITE 242
Pneumatic Cylinder & Valve
- Range shift cylinder assembly (WG2209100005)
- Split-range cylinder assembly (WG2209230005)
- Range shift piston (WG2229100050)
- Split-range shift piston (WG2229230005)
- Range lock spring and steel ball
- Pneumatic hose connectors
- Cylinder paper gaskets
- Position sensor nut assemblies
Gear Sets & Drive Components
- Split-range drive gear sets
- Low range drive gear assemblies
- High range drive gear assemblies
- 3rd gear sets (countershaft + main shaft)
- Reverse gear + idler gear sets
- Sensor ring gear (AZ2210100020)
- Gear parameter cards for matching
- Gear wear inspection kits
Overhaul & Repair Kits
- Complete gearbox overhaul kit
- Synchronizer rebuild kit
- Seal and gasket complete set
- Bearing replacement kit
- Shift fork and block refresh kit
- Range gearbox reseal kit
- Oil pump rebuild kit
- Brake friction plate replacement set
Why Choose Us as Your HOWO Gearbox Parts Supplier
Reliable transmission parts supply backed by technical expertise and global logistics
OEM-Standard Manufacturing
All gearbox components produced to SINOTRUK OEM technical specifications. Dimensional accuracy verified, material grades matched for long service life.
EPC Part Number Verification
Provide your VIN or OEM part number and our team cross-references through the official SINOTRUK EPC system for 100% compatibility.
Massive Inventory Ready
Large stock of commonly used gearbox parts enables 3-7 day order processing. We maintain inventory for A7, T7H, TX, and NX transmission systems.
Competitive Export Pricing
Direct factory cooperation means 40-60% cost savings versus dealership channels. Volume discounts available for distributors and fleet operators.
Pre-Shipment Inspection
Every gearbox part undergoes visual inspection, dimensional check, and where applicable, hardness testing before export packaging.
Global Export Experience
Shipping to 40+ countries including Nigeria, Kenya, Ghana, Saudi Arabia, UAE, Bangladesh, Peru, and Chile. Sea freight 25-35 days, air freight 5-8 days.
Applications & Industries
HOWO gearbox spare parts support a wide range of heavy-duty applications
Long-Distance Transport Fleets
Mining & Heavy Haul Transport
Infrastructure & Construction
Quarry & Aggregate Operations
Port & Logistics Terminals
Oil & Gas Field Transport
Agricultural Bulk Haulage
Truck Maintenance Workshops
Fleet Management Companies
Spare Parts Distributors
Government & Military Fleets
Concrete Mixer Truck Fleets
HOWO Gearbox EPC Subsystem Coverage
Our parts catalog covers all 16 major transmission subsystems with OEM part numbers
1. Front Housing Assembly
- Front housing AZ2203000001
- Composite bushing DX 30x34x30
- Oil seal PS 30x45x8 (AZ9003073001)
- Front housing gasket WG2229000001
- Hex nuts M10 fine thread Q341B10
2. Main Housing Assembly
- Center housing AZ2203010003
- Housing casting AZ2220010003
- Threaded plugs WG2229010002
- Drain plug assembly WG2203010002
- Locating pins WG2229010001
3. Input Shaft & End Cap
- Input shaft assembly AZ2203020007
- Drive gear low range AZ2203020112
- Split synchro cone hub WG2210020003
- End cap with oil guide AZ2203020108
- Input bearing shim group AZ2208020002
4. Countershaft Assembly
- Countershaft L/R AZ2203030001/5
- 3rd gear AZ2210030003
- Drive gear high AZ2210030004
- Bearing NUP309E AZ9003329309
- Snap ring Q43170 / Q43145
5. Main Shaft Assembly
- Main shaft assembly AZ2203040001
- 1st/2nd/3rd/Rev gears
- Sliding sleeves WG2210040210
- Spline retainer washers
- Adjustment shim group AZ2208040002
6. Idler Shaft Assembly
- Idler shaft L/R WG2212050001/2
- Idler gear WG2210050001
- Needle bearing K455320 AZ9003395320
- Spacer washers WG2229050001
7. Braking Components
- End cap assembly AZ2203060005
- Brake discs WG2229060010
- Friction plate assembly WG2209060005
- Brake piston AZ2229060020
- Bracket assembly AZ2203260010
8. Range Gearbox (AMT)
- Range box assembly AZ2203100030
- Planetary carrier AZ2203100002
- Sun gear WG2210100001
- Range synchro hub WG2210100007
- Output flange 180 face spline
9. Cover Assembly
- X-Y actuator WG2209210001
- Adapter plate AZ2229210038
- Small cover gasket AZ2229210050
- Vent pipe assembly WG2203210018
- LOCTITE 242 AZ9007970242
10. Shift Fork Shaft Assembly
- Reverse fork shaft AZ2203220004
- 1st-2nd fork shaft AZ2203220005
- 3rd-4th fork shaft AZ2203220006
- Shift forks WG2214220001
- Pins WG2229220001/2
11. AMT Shifter Components
- Split-range fork shaft AZ2203230001
- Split-range shift fork WG2214230001
- Shift cylinder assembly WG2209230005
- Shift piston WG2229230005
- O-rings and steel balls
12. Oil Pump & Piping
- Oil pump assembly WG2203240005
- Oil outlet pipe WG2203240001
- Input shaft oil feed WG2203240002
- Filter screen WG2203240007
- Hollow bolts 190003962627
13. Pneumatic Pipeline
- Brake air pipe WG2203060010
- Hose connector 199100270113
- Hollow bolt 190003962612
- Sealing washers Q72312T5F
14. Clutch Operating Assembly
- Fork shaft assembly WG2203260106
- Clutch release fork WG2214260001
- AMT booster bracket AZ2229260030
- Solenoid bracket AZ2229060040
15. Electrical & Sensors
- Input speed sensor WG2209280005
- Output speed sensor WG2209280006
- Odometer sensor WG2209280010
- Solenoid valve VG1557090015
16. Nameplate & Accessories
- Gearbox nameplate AZ2229300001
- Front cover plate WG2203260011
- Lifting plate WG2229100061
- Drain hole cover plate
Global Export & Shipping
Professional packaging and logistics solutions for worldwide delivery
Sea Freight
FCL and LCL options. 25-35 days to major ports in Africa, Middle East, South America. CIF / FOB / EXW terms available.
Air Freight & Express
5-8 working days for urgent gearbox parts. Door-to-door express available for small packages and sample orders.
Export-Grade Packaging
Heavy-duty plywood cases, vacuum-sealed rust protection, custom foam inserts for precision components. Moisture-proof wrapping.
Documentation Support
Full export docs: Commercial Invoice, Packing List, Bill of Lading, Certificate of Origin, CoC where required. Customs clearance assistance.
Frequently Asked Questions
Common questions about HOWO gearbox spare parts supply
Q1: Do you supply complete HOWO gearbox assemblies?
Yes. We supply both complete gearbox assemblies (fully built and tested) and individual transmission spare parts. Complete assemblies are available for HOWO A7, T7H, TX, and NX series including manual and AMT types. Please provide your truck model and transmission type for accurate matching.
Q2: How do I identify the correct gearbox parts for my truck?
The most reliable method is to provide your OEM part number from the current part or the transmission nameplate. You can also share your truck VIN (chassis number), transmission model code, or clear photos of the damaged part. Our technical team will cross-reference through the official SINOTRUK EPC system to confirm 100% compatibility.
Q3: What quality level are your gearbox parts?
We offer three quality tiers: (1) Genuine SINOTRUK original parts — factory-packaged, highest quality; (2) Premium OEM-equivalent — manufactured to identical specifications by certified suppliers, 30-50% cost savings; (3) Reliable aftermarket — tested for fitment and durability, suitable for older trucks and budget-conscious fleets. All parts are inspected before shipment.
Q4: Do you support bulk orders for distributors and fleet operators?
Absolutely. We specialize in bulk export supply for spare parts distributors, fleet maintenance companies, and government procurement. Volume discounts apply for orders above certain thresholds. We can also prepare customized parts kits (e.g., fleet-standard gearbox rebuild packages) to simplify your procurement.
Q5: What is the typical lead time for gearbox parts orders?
Commonly stocked gearbox parts: 3-7 business days for order processing and packing. Special-order or low-volume items: 7-15 business days. Sea freight transit adds 25-35 days depending on destination port. Air freight transit adds 5-8 working days. We provide estimated delivery dates with every quotation.
Q6: Can you supply gearbox overhaul kits and repair kits?
Yes, we prepare complete overhaul kits covering all wear components: bearings, seals, gaskets, synchronizer rings, detent springs, O-rings, and friction plates. Kits can be customized for specific transmission models (HW19710, HW19712, HW90510, HW13710) or tailored to your workshop's standard rebuild procedure.
Q7: Which countries do you export HOWO gearbox parts to?
We export globally with strong presence in Africa (Nigeria, Ghana, Kenya, South Africa, Tanzania, Algeria, Morocco), the Middle East (Saudi Arabia, UAE, Iraq), South Asia (Bangladesh, Pakistan), Southeast Asia (Philippines, Vietnam, Indonesia), and South America (Chile, Peru, Colombia, Brazil). Our logistics team handles customs documentation for all major markets.
Q8: Do you supply parts for other transmission brands or systems?
While we specialize in SINOTRUK HOWO transmissions, we also supply gearbox and drivetrain parts for SHACMAN, BEIBEN, and FOTON AUMAN trucks, as well as construction machinery transmissions for SANY, XCMG, LIUGONG, and SHANTUI equipment. Contact us with your requirements for a compatibility check.
Get Your HOWO Gearbox Parts Quotation Today
Contact our transmission parts team with your OEM part numbers, truck model, or gearbox type for a fast, accurate quotation. Professional technical support and global shipping included.
WhatsApp: +86 178 6053 9508
Email: linwl@archermach.com
Website: archerparts.com