Product Introduction

• Structure: A monoblock 20CrMnTi alloy steel forging, preassembled with 1st and 2nd speed gears, needle roller bearings, and precision-ground support journals. The axle end features a 16-tooth external spline for differential engagement. All gear teeth undergo full carburizing, quenching, and precision grinding, achieving surface hardness HRC 58–62(anti-pitting/wear) and core hardness HRC 33–45 (anti-impact fracture).

• Performance: The fully preassembled design eliminates on-site assembly errors, ensuring perfect gear alignment and bearing preload. The monoblock forging provides high torsional rigidity, while the hardened gears resist wear during frequent low-speed shifting. The integrated needle bearings reduce friction between gears and the shaft, improving transmission efficiency and reducing heat generation.

Core Function

1. Medium-load power output: Transmits torque from the transmission countershaft to the left drive axle, supporting medium-load driving scenarios.

2. Multi-speed torque transfer: The integrated 1st/2nd gears deliver torque across low-to-medium speed driving.

3. Differential connection: The splined axle end engages with the differential side gear to transfer power to the left drive wheel.

Output Shaft Assy (Left) AZ2203030205 – SINOTRUK HW Series Gearbox

When your SINOTRUK HW Series Gearbox demands a reliable left output shaft assembly, the AZ2203030205 stands as the precision-engineered solution that keeps your heavy-duty drivetrain running smoothly. Manufactured to exact OEM specifications, this output shaft assy (left) delivers consistent torque transfer, minimal vibration, and extended service life – even under the most demanding operating conditions. Whether you are maintaining a fleet or sourcing replacement gearbox components for your workshop, this part is built to perform where it matters most.

Key Features and Benefits of Output Shaft Assy (Left) AZ2203030205

Choosing the right output shaft assembly is critical to the longevity and efficiency of your SINOTRUK HW gearbox. Here is what makes the AZ2203030205 a smart investment for your operation:

• OEM-Grade Precision: Machined to exact factory tolerances, this left output shaft assy ensures seamless compatibility with the SINOTRUK HW series gearbox without any modification.
• Superior Material Strength: Forged from high-grade alloy steel, then heat-treated for exceptional hardness and fatigue resistance – so it handles heavy torque loads day after day.
• Optimized Surface Finish: Precision-ground splines and bearing journals reduce friction, lower operating temperatures, and extend the life of mating components.
• Reliable Torque Transmission: The spline geometry is designed to distribute load evenly across all teeth, minimizing stress concentration and preventing premature wear.
• Strict Quality Control: Every AZ2203030205 output shaft assembly undergoes dimensional inspection, hardness testing, and surface defect analysis before leaving the facility.
• Cost-Effective Factory Direct Supply: By sourcing directly from Mettlead, you eliminate middlemen markups and get genuine-quality parts at a competitive price.

Technical Specifications – AZ2203030205 Output Shaft Assy (Left)

For technical engineers who need exact parameters before ordering, the following table provides the key specifications for this SINOTRUK HW series gearbox output shaft assembly:

Application Scenarios – Where Does AZ2203030205 Fit?

The Output Shaft Assy (Left) AZ2203030205 is specifically engineered for the SINOTRUK HW series gearbox, which is widely deployed across heavy-duty commercial vehicles. In practical terms, this means you will find this component hard at work in the following applications:

• SINOTRUK HOWO Heavy-Duty Trucks: Including A7, T7H, and T5G models equipped with HW series manual transmissions.
• SITRAK Series Trucks: C7H and C5H models utilizing the HW gearbox platform for long-haul freight operations.
• Mining and Construction Dump Trucks: Vehicles operating under extreme load cycles where gearbox reliability is non-negotiable.
• Special-Purpose Vehicles: Concrete mixers, tanker trucks, and logging trucks built on SINOTRUK chassis with HW gearbox configurations.

In essence, if your vehicle relies on a SINOTRUK HW series gearbox and the left output shaft assembly needs replacement, the AZ2203030205 is your direct-fit solution. You can explore our full range of compatible components on our SINOTRUK HOWO Gearbox Parts page or browse the complete Gearbox Parts Category for additional options.

OEM/ODM Capability – Custom Packaging and White-Label Solutions

At Mettlead, we understand that different markets have different branding needs. That is why we offer flexible OEM and ODM services tailored to your business model:

• White-Label Packaging: Receive the AZ2203030205 output shaft assy (left) in neutral packaging, ready for your own branding and distribution channels.
• Custom Packaging Design: We can produce parts with your logo, part number labels, and branded boxes – helping you build brand recognition in your target market.
• Bulk Order Flexibility: Whether you need 10 pieces or 10,000, our production capacity scales to meet your demand without compromising quality or lead time.
• Technical Support: Our engineering team is available to assist with cross-referencing, fitment verification, and application-specific recommendations.

For a comprehensive look at our SINOTRUK parts lineup, visit our SINOTRUK HOWO Truck Parts brand page.

Customer Case Study – AZ2203030205 Output Shaft Assy in Action

A fleet maintenance company based in East Africa was experiencing recurring left output shaft failures on their SINOTRUK HOWO A7 trucks. After multiple replacements with aftermarket parts of inconsistent quality, they turned to Mettlead for a reliable, long-term solution.

We supplied them with a batch of Output Shaft Assy (Left) AZ2203030205 units manufactured to strict OEM specifications. Following installation across 12 vehicles operating on demanding routes, the client reported zero shaft-related failures over a 14-month monitoring period. Moreover, they noticed smoother gear engagement and reduced gearbox noise – clear indicators of proper dimensional accuracy and surface quality.

As a result, this client expanded their orders to include additional SINOTRUK HW series gearbox components, consolidating Mettlead as their primary supplier for gearbox parts. This case demonstrates exactly why quality-controlled, factory-direct parts make a measurable difference in fleet uptime and total cost of ownership.

Frequently Asked Questions – Output Shaft Assy (Left) AZ2203030205

What gearbox models does the AZ2203030205 output shaft assy (left) fit?

The AZ2203030205 is designed specifically for the SINOTRUK HW series gearbox. It fits the left output shaft position on HW19710, HW19712, and related HW gearbox variants commonly found in HOWO and SITRAK heavy trucks.

How can I verify that AZ2203030205 is the correct part number for my vehicle?

We recommend cross-referencing the part number with your existing gearbox nameplate data. Additionally, our technical team can help you confirm fitment if you provide the gearbox model number and vehicle chassis code. Simply reach out through our Contact Us page.

What material is the output shaft assy (left) AZ2203030205 made from?

This output shaft assembly is forged from high-grade alloy steel, followed by CNC machining and heat treatment. The spline surfaces are hardened to HRC 58–62, providing exceptional wear resistance under heavy torque loads.

Can I order the AZ2203030205 with custom packaging or my own brand label?

Absolutely. Mettlead offers both white-label neutral packaging and fully customized packaging options. You can have your logo, part numbers, and barcodes printed on the box – ideal for distributors building their own brand identity in the aftermarket.

What causes premature failure of the left output shaft in HW series gearboxes?

Common causes include insufficient lubrication, misalignment during installation, overloading beyond rated torque capacity, and using substandard replacement parts with incorrect hardness or dimensional tolerances. Choosing an OEM-specification part like the AZ2203030205 significantly reduces the risk of premature failure.

What is the typical lead time for shipping the AZ2203030205 output shaft assy?

For stock items, we typically ship within 3–5 business days. For bulk orders or custom-packaged units, lead time ranges from 7–15 days depending on order quantity. Contact us for a precise delivery estimate based on your location and requirements.

Ready to Order Output Shaft Assy (Left) AZ2203030205?

Stop letting gearbox downtime eat into your profits. The SINOTRUK HW Series Output Shaft Assy (Left) AZ2203030205 is in stock and ready to ship worldwide from our facility in China. With factory-direct pricing, strict quality control, and flexible payment options, Mettlead makes it easy to source the parts your fleet depends on.

Get your personalized quote today. Send us your requirements – including quantity, destination, and any packaging preferences – and our team will respond within 24 hours with pricing and shipping details.

👉 Contact Mettlead Now – Request a Quote for AZ2203030205

We also welcome factory visits to our facility in China. Come inspect our quality control processes, meet the team, and see firsthand why distributors across Africa, the Middle East, Southeast Asia, and South America trust Mettlead for their SINOTRUK gearbox parts supply.