Howo Shifting Gear–100% Genuine Oem Product

Howo Shifting Gear ensures reliable meshing and stable speed conversion for heavy truck transmission systems.

About Howo Shifting Gear

As a professional factory supplier of Sinotruk heavy truck spare parts, we provide 100% genuine OEMHowo Shifting Gear for full-series HOWO heavy-duty transmission systems.

The Howo Shifting Gear refers to the core gear components inside the truck gearbox that complete gear switching, power matching and speed adjustment, including main shaft gears, countershaft gears, reverse gears and synchronizer matching gears.
It directly determines shifting smoothness, power transmission efficiency and gearbox service life.
All our Howo Shifting Gear parts are strictly produced according to Sinotruk OEM standards, adopting high-strength carburized alloy steel and precision grinding technology, featuring high hardness, wear resistance and impact resistance.
These genuine transmission gears are widely compatible with HOWO HW13710, HW19710, HW19712 and 10JS/12JS series gearboxes, fitting HOWO 371HP, 380HP, 420HP, 430HP dump trucks, tractors and mixer trucks.

Main Product Models & OEM Part Numbers

We supply genuine and aftermarket Howo Shifting Gear (Sliding Shift Gear) for SINOTRUK HOWO dump trucks and tractor trucks. Main OEM part numbers include AZ2210040206, WG2210040309, AZ2210040225, WG2211040101. These shifting gears are core transmission components inside HW19710, HW19712, HW25712 gearboxes, responsible for meshing and gear shifting. Made of high-strength alloy steel with carburizing quenching treatment, featuring strong wear resistance and impact resistance. Suitable for heavy-duty construction, mining and long-distance transport vehicles. We can match complete gearbox repair sets and related synchronizer parts.

OEM Part Number	English Name	Application
AZ2210040206	Main Shaft 2nd Gear / Shift Sliding Gear	HW19710 / HW19712 Gearbox, HOWO 371/380 6×4, 8×4 Dump Truck, Best-selling Model Overseas
WG2210040309	Main Shaft Reverse Shift Gear	HW19710 10-speed Gearbox, Old Model HOWO Dump Truck & Tractor Truck
AZ2210040225	Main Shaft 3rd Speed Shift Gear	HW19710 10-speed Transmission, HOWO Dump Truck
WG2211040101	Main Shaft 1st Gear Sliding Shift Gear	HW25712X 12-speed Gearbox, New HOWO TX Heavy-duty Dump Truck
WG2211040106	2nd Shaft 5th Overdrive Shift Gear	HW25712XSC Overdrive Gearbox
WG2210100006	Auxiliary Box Range Gear / Subbox Shift Gear	Auxiliary Gearbox of All HW Series, Distinguished From Main Box Gears

Main Shaft 2nd Gear

AZ2210040206

Main Shaft Reverse Shift Gear

WG2210040309

Auxiliary Box Range Gear

WG2210100006

1st Speed Main Shaft Shifting Gear

WG2211040101

Core Advantages

100% OEM Original Standard: Every Howo Shifting Gear adopts carburizing heat treatment and precision tooth grinding process, with high surface hardness, strong wear resistance and long fatigue life, suitable for long-term heavy-load transportation.
Smooth Shifting Performance: Standard tooth spacing and precise tolerance ensure tight meshing without gear jumping, stuttering or abnormal noise during shifting.
Strong Impact Resistance: Integral forging structure effectively resists instantaneous torque impact during frequent start and shift, not easy to crack or break.
Perfect Original Compatibility: Fully consistent with original gearbox parameters, no modification required, direct plug-and-play installation.
Stable Spot Supply: Hot-selling Howo Shifting Gear parts are in long-term stock, supporting fast delivery and reducing vehicle downtime.
One-stop Transmission Support: We supply matching synchronizer rings, shift forks, bearings and gearbox repair kits for full gearbox overhaul.

Application Scenarios & Compatible Vehicles

The genuine Howo Shifting Gear is widely used for Sinotruk HOWO full-series heavy-duty trucks and multiple transmission types:

HOWO 6×4 / 8×4 mining dump trucks with HW19710 / HW19712 gearbox
HOWO 4×2 / 6×4 logistics tractors equipped with 10JS / 12JS manual transmission
HOWO concrete mixers, fuel tank trucks and special engineering heavy trucks
All HOWO 371HP, 380HP, 420HP, 430HP standard and enhanced versions

It is the core replacement part for gearbox noise, gear slipping, difficult shifting and gear tooth damage maintenance.

Why Choose Us

We are a professional dedicated supplier of genuine Sinotruk HOWO transmission parts.
All Howo Shifting Gear we provide are 100% factory genuine products without refurbished or counterfeit parts.
We implement strict dimension inspection and tooth surface quality testing before shipment to ensure stable meshing performance and zero defect rate.
With complete OEM part number database, we can quickly and accurately match gears for different gearbox versions.
We support small trial orders, mixed container loading and customized export packaging.
Sufficient inventory ensures fast global delivery, helping overseas distributors and fleet owners reduce procurement cost and avoid after-sales quality risks.
We also provide professional gearbox assembly and maintenance technical support.

Packaging

All Genuine Howo Kingpins adopt standardized layered protective packaging tailored to the product structure and mechanical component characteristics.
Each finished kingpin assembly and repair kit is individually wrapped with shockproof foam, anti-rust paper and waterproof plastic film, effectively protecting the main kingpin, copper bushings, thrust washers and sealing components from extrusion deformation, surface abrasion, rust and moisture damage.
All products are neatly packaged in thickened high-strength export cartons or fumigated wooden cases, preventing collision, part displacement and structural damage during long-distance ocean transportation and prolonged warehouse storage.
Supporting accessories such as oil seals, fixing pins and adjusting gaskets are independently sealed and packaged to ensure complete sets and zero loss during delivery.
Each outer package is clearly printed with OEM part numbers, applicable steering axle models, product specifications, quantities and standard shipping marks, supporting fast cargo inspection and smooth customs clearance for global shipments.

FAQ

Q1: What symptoms indicate damaged Howo Shifting Gear?

Common faults include obvious gear grinding noise during shifting, gear slipping during driving, difficult gear engagement, gear jamming, and unstable vehicle power output, which will seriously affect driving safety.

Q2: Can I buy small quantities of Howo Shifting Gear for trial order?

Yes, we support flexible small-batch trial orders and retail orders. Bulk orders will enjoy more competitive factory wholesale prices.

Q3:Do you support one-stop gearbox parts matching?

Absolutely. We can support complete gearbox overhaul parts including shifting gears, synchronizers, shift forks, bearings and oil seals for one-stop purchasing.

Q4:What is the difference between OEM and aftermarket Howo Shifting Gear?

Genuine OEM Howo Shifting Gear adopts strict carburizing and grinding process with accurate tooth profile and high wear resistance. Aftermarket gears have rough tooth surfaces, insufficient hardness and poor meshing accuracy, easily causing noise, slipping and rapid wear.

Q5:How long is the service life of genuine Howo Shifting Gear?

Under normal road conditions and standard gear oil maintenance, genuine Howo Shifting Gear can last 2–4 years. Frequent shifting and heavy-duty mining scenarios require regular inspection to prevent sudden failure.