Sinotruk Gearbox – 100% High Quality

Heavy-duty Sinotruk Gearbox, stable power, durable for all truck transport scenarios.

About Sinotruk Gearbox

Company Qualification
We are a professional authorized supplier of Sinotruk heavy truck components.
Product Supply
We supply 100% high-quality Sinotruk Gearbox assemblies and a full range of original replacement spare parts.
Main Product Range
Our core products include the classic Howo Gearbox series, covering both manual transmissions and AMT automated transmissions customized for Sinotruk HOWO heavy-duty trucks.
Core Structural & Performance Advantages
Sinotruk gearboxes adopt double intermediate shaft & planetary auxiliary box structure, featuring high torque capacity, smooth shifting and low failure rate.

Main Sinotruk & Howo Gearbox Series

Our Sinotruk Gearbox product line covers full-spec Howo Gearbox models to match different tonnages and working scenarios of Sinotruk HOWO trucks, including 10-speed, 12-speed and high-torque heavy-duty versions:

HW19710 10-Speed Howo Gearbox: Standard universal transmission with 1900Nm rated torque, widely used on 6×4 HOWO dump trucks and general logistics cargo trucks. It features simple structure, easy maintenance and strong cost performance for daily heavy transportation.
HW19712 12-Speed Howo Gearbox: The most popular Sinotruk Gearbox for overseas markets. With reasonable gear ratio design and strong low-speed torque, it perfectly matches HOWO tractor heads, concrete mixers and medium-large mining tippers.
High-Torque 16-Speed Gearbox: Ultra-heavy duty Sinotruk Gearbox with super wide speed ratio range, customized for large-tonnage ore transport and mountain slope climbing working conditions.

Sinotruk Gearbox Models

Transmission Type	Speed Grade	Model Variants
Manual Transmission	9-Speed	HW18709
	10-Speed	HW18710
	11-Speed	HW18711
	12-Speed	HW18712
	13-Speed	HW18713
	14-Speed	HW18714
	15-Speed	HW18715
	16-Speed	HW18716
Automatic Transmission	9-Speed	HW12709A, HW12709B, HW12709C
	10-Speed	HW12710A, HW12710B, HW12710C
	11-Speed	HW12711A, HW12711B, HW12711C
	12-Speed	HW12712A, HW12712B, HW12712C
	13-Speed	HW12713A, HW12713B, HW12713C
	14-Speed	HW12714A, HW12714B, HW12714C
	15-Speed	HW12715A, HW12715B, HW12715C
	16-Speed	HW12716A, HW12716B, HW12716C

Related Accessories Of Sinotruk Gearbox

We supply a complete range of OEM-standard related accessories of Sinotruk Gearbox, fully compatible with all HOWO, Steyr, Hohan heavy-duty truck gearbox models.

Wide product range: gear shift forks, synchronizer assemblies, clutch release bearings, gearbox gaskets, oil seals, gearbox shafts, shift cylinders, pressure plates, gearbox filters and transmission control cables.
Strict OEM production standards: every related accessory of Sinotruk Gearbox is made per original factory specifications, with precise matching, superior wear resistance and long service life, which greatly lowers gearbox breakdown risks and maintenance expenses.
Flexible order modes & reliable service: we accept single spare part orders and large bulk wholesale, serving logistics fleets, mining trucks and truck repair shops. Fast worldwide shipping and affordable factory-direct prices are provided.

Bearing-Set

Control-Valve-Body

Synchronizer-Ring

Clutch-Kit

Gear-Shift-Fork

Transmission-Mount

Complete-Gear-Set

Shaft

Transmission-Seal

Core Advantages of 100% High-Quality Sinotruk Gearbox

All our Sinotruk Gearbox and Howo Gearbox assemblies strictly follow original Sinotruk manufacturing standards, with prominent advantages in durability, adaptability and stability:

High Load Resistance

Core material upgrade: All internal gears are made of carburized alloy steel, featuring high hardness, strong impact resistance and anti-wear performance.
Reinforced housing design: Thickened cast steel gearbox box body improves overall structural rigidity to resist heavy impact during mining and transportation.
Stable full-load performance: The optimized gear meshing structure supports uninterrupted long-term full-load operation under heavy cargo weight.
Lower failure rate: Effectively avoid common faults such as gear surface abrasion, tooth collapse and shifting jamming under continuous heavy load.

Precise OEM Matching

Standard OEM dimensional design: Each Sinotruk Gearbox strictly follows original factory drawing standards, with consistent overall size and installation position as the original transmission.
Complete reserved connecting interfaces: Standard matching interfaces for clutch assembly, drive shaft and chassis mounting brackets are pre-reserved on the gearbox.
Plug-and-play installation feature: Direct replacement for the original gearbox, no cutting, drilling or other secondary modification required during assembly.
Universal compatibility: Perfectly fit all mainstream HOWO, Steyr and Hohan truck models, matching original vehicle wiring and control linkages seamlessly.

Low Maintenance & Long Service Life

Optimized internal circulation lubrication system: Uniform oil distribution to every gear and bearing component, avoiding dry friction and abnormal wear of transmission parts.
Upgraded heat dissipation structure: Independent heat conduction channels quickly dissipate operating heat, effectively control excessive gearbox oil temperature during long-distance heavy-duty driving.
High-sealing structural design: Premium rubber oil seals and integrated gaskets minimize oil seepage and leakage problems, reducing frequent oil refilling work.
Wear-resistant internal accessories: Synchronizers, shift forks and bearings adopt wear-resistant materials, extending the service cycle of vulnerable parts.

Strong Environmental Adaptability

Stable performance under high temperature: High-temperature resistant internal materials and dedicated transmission oil avoid lubrication deterioration and component deformation during long-time operation in hot zones.
Complete dust and sand isolation: Fully enclosed box body prevents sand, dust and mud from entering the gearbox, effectively protecting gears and bearings from abrasive wear.
Effective moisture and rust prevention: All metal parts are treated with anti-rust coating to resist corrosion in rainy, muddy and high-humidity areas.
Professional salt-fog resistant treatment: Surface anti-corrosion coating on exposed metal accessories withstands salt fog erosion for coastal transportation scenarios.

Compatible Vehicles & Application Scenarios

Sinotruk Gearbox and Howo Gearbox are standard transmission systems for full-series Sinotruk HOWO heavy trucks, covering multiple commercial vehicle types and industrial transportation scenarios:

HOWO 6×4 / 8×4 mining dump trucks, sand and stone transport vehicles
HOWO 4×2 / 6×4 long-distance logistics tractor trucks
HOWO concrete mixer trucks, fuel tank trucks and water tank trucks
Fleet daily maintenance, accident vehicle repair and transmission replacement renovation

Packaging of Sinotruk Gearbox

All Sinotruk Gearbox and its supporting spare parts adopt layered protective packaging according to product characteristics.
- Complete Sinotruk Gearbox assemblies are wrapped with thick shockproof foam, plastic anti-rust film and waterproof kraft paper to protect precision internal structures.
- Heavy gearbox main bodies are fixed with export fumigated wooden cases or sturdy wooden pallets to prevent collision, scratch and rust during long-distance sea transportation.
- Small gearbox accessories including synchronizers, oil seals, shift forks and bearings are packed in standard export cartons lined with waterproof plastic bags.
- Every outer package is clearly printed with gearbox part number, applicable truck model, quantity and exclusive shipping mark, simplifying customs clearance and cargo receiving for overseas buyers.

Transportation of Sinotruk Gearbox

We provide multiple global logistics methods for Sinotruk Gearbox and its spare parts, covering sea freight, air freight, railway transportation and door-to-door express service.

For mass bulk orders of Sinotruk Gearbox assemblies and accessories, sea shipping or China-Europe Railway Express is adopted to effectively control overall transportation costs.
Air shipment is available for urgent small orders of gearbox spare parts to greatly shorten delivery cycles.
Our cooperating logistics suppliers support real-time continuous cargo tracking information throughout the whole transportation process of Sinotruk Gearbox goods.
We take full responsibility for the safety of all Sinotruk Gearbox products before handing the goods over to logistics carriers.

FAQ

Q1: What models does your Sinotruk Gearbox cover?

Our product lineup includes mainstream 10-speed and 12-speed Howo Gearbox (HW19710, HW19712) and heavy-duty 16-speed transmission, covering light, medium and heavy load working conditions of Sinotruk HOWO, Steyr and Hohan trucks.

Q2: Are your Howo Gearbox 100% original quality?

Yes. All Sinotruk Gearbox and Howo Gearbox assemblies are manufactured in strict accordance with original factory standards, with stable performance, perfect chassis matching and long service life. Every gearbox passes multi-channel factory inspection before delivery.

Q3: Can you supply separate gearbox spare parts instead of whole assemblies?

Absolutely. We provide full series related accessories of Sinotruk Gearbox, including synchronizers, shift forks, bearings, oil seals, gaskets and gear shafts, supporting single-piece replacement and bulk wholesale.

Q4:What harsh environments can your Sinotruk Gearbox adapt to?

Our gearboxes feature strong environmental adaptability, suitable for high-temperature, dusty, humid and salt-fog scenarios, widely used in Africa, Southeast Asia, the Middle East and other overseas mining, construction and logistics transportation projects.

Q5: Do you support customized service and global shipping?

We support customized exterior painting and mixed bulk orders. We cooperate with multiple logistics providers to deliver goods to ports all over the world with fast and safe global transportation.

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