Product Introduction

• Structure: A monoblock forging from high-strength 20CrMnTi alloy steel, preassembled with 1st and 2nd speed gears, high-load 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 upgraded monoblock forging and high-load bearings deliver higher torsional rigidity and load capacity, suitable for frequent start-stop and heavy-duty operating conditions. The preassembled design ensures perfect gear alignment and bearing preload, reducing noise and extending service life to over 70,000 hours. The hardened gears resist pitting and wear during low-speed shifting, maintaining smooth meshing with countershaft gears.

Core Function

1. Enhanced medium-load power output: Transmits torque from the countershaft to the left drive axle, supporting higher medium-load scenarios up to 40t.

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) AZ2203030209 – SINOTRUK HW Series Gearbox Spare Part

When your SINOTRUK HW series gearbox demands a reliable left output shaft assembly, the AZ2203030209 stands as the precision-engineered solution you can count on. This output shaft assy (left) plays a critical role in transmitting torque smoothly from the gearbox to the drive axle, ensuring your heavy-duty truck operates at peak performance. At Mettlead, we supply this genuine-spec component directly from our factory in China, which means you get unbeatable pricing without ever compromising on quality. Whether you are maintaining a fleet or stocking your parts warehouse, this is the component that keeps your SINOTRUK trucks moving forward.

Key Features and Benefits of Output Shaft Assy (Left) AZ2203030209

Choosing the right output shaft assembly is not just about finding a part number – it is about securing long-term drivetrain reliability. Here is why the AZ2203030209 left output shaft assy delivers real value to your operations:

• Precise OEM Fitment: Engineered to match the exact dimensional and metallurgical specifications of the original SINOTRUK HW series gearbox output shaft, so installation is seamless and performance is guaranteed from day one.
• Superior Material Strength: Manufactured from high-grade alloy steel that has been heat-treated for exceptional hardness, wear resistance, and fatigue life – critical for handling the heavy torque loads in commercial truck applications.
• Smooth Torque Transmission: The spline geometry and surface finish are precision-machined, which ensures efficient power transfer and minimizes vibration throughout the drivetrain.
• Extended Service Life: Thanks to strict quality control at every production stage, this output shaft assy resists premature wear, helping you avoid costly unplanned downtime.
• Factory-Direct Pricing: By sourcing directly from Mettlead, you eliminate middleman markups and enjoy competitive wholesale pricing that strengthens your bottom line.
• Fast Global Delivery: Our streamlined logistics network ensures your parts reach you quickly, no matter where in the world your workshop or warehouse is located.

Technical Specifications – AZ2203030209 Output Shaft Assy (Left)

Below you will find the detailed technical parameters for this SINOTRUK HW series gearbox left output shaft assembly. These specifications help you confirm fitment and plan your procurement with confidence:

Application Scenarios – Where Does AZ2203030209 Fit?

The Output Shaft Assy (Left) AZ2203030209 is specifically designed for the SINOTRUK HW series gearbox, one of the most widely used heavy-duty transmissions across global markets. This left output shaft assembly is a critical gearbox component that connects to the left-side drive axle, making it indispensable in the following scenarios:

• Compatible Gearbox Models: HW19710, HW15710, HW19712, HW15712, and other HW series variants used in SINOTRUK heavy trucks.
• Compatible Vehicle Models: SINOTRUK HOWO A7, HOWO T7H, HOWO T5G, SITRAK C7H, and other heavy-duty models equipped with HW series transmissions.
• Usage Scenarios: Fleet overhaul programs, routine gearbox maintenance, single-unit shaft replacement after wear diagnosis, and spare parts inventory replenishment for distributors and repair workshops.
• Geographic Markets: Africa, Southeast Asia, Middle East, Central Asia, South America, and CIS countries where SINOTRUK trucks dominate the heavy transport sector.

In short, if you are working on any SINOTRUK HW series gearbox and need a left output shaft total assembly, AZ2203030209 is your direct-fit solution. For more SINOTRUK HOWO gearbox parts, explore our dedicated catalog.

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

At Mettlead, we understand that different markets have different branding needs. That is why we offer flexible OEM and ODM services for the Output Shaft Assy (Left) AZ2203030209 and our entire range of SINOTRUK HOWO truck parts:

• White-Label Packaging: We supply parts in neutral packaging, ready for you to apply your own brand identity in your local market.
• Custom Packaging: Need your logo, part number, and barcode printed on the box? We handle the entire branding process for you at the factory level.
• Strict Quality Control: Every output shaft assembly undergoes dimensional inspection, hardness testing, and surface finish verification before shipment – regardless of packaging style.
• Flexible MOQ: Whether you need a single trial order or a full container, our production line accommodates your volume requirements.
• Factory Visit Welcome: We invite buyers to visit our facility in China to inspect production processes and quality systems firsthand.

Customer Case Study – AZ2203030209 Output Shaft Assy for African Fleet Distributor

Earlier this year, a heavy truck parts distributor based in East Africa reached out to Mettlead with an urgent requirement. Their client operated a fleet of over 60 SINOTRUK HOWO trucks equipped with HW19710 gearboxes, and multiple units were experiencing left output shaft wear after reaching high mileage. The customer needed a reliable supply of Output Shaft Assy (Left) AZ2203030209 with competitive pricing and fast turnaround.

After receiving their inquiry, our team confirmed the part specifications within 24 hours and provided a detailed quotation. We shipped 30 units of the AZ2203030209 output shaft assembly with custom-branded packaging within 10 working days. Upon installation, the client reported smooth fitment, zero returns, and a significant cost saving compared to their previous sourcing channel.

This partnership has since expanded into a recurring monthly supply arrangement covering multiple SINOTRUK HW series gearbox parts, including input shafts, synchronizer assemblies, and bearing kits. The lesson here is straightforward: when you need the right output shaft assy with verified quality and dependable logistics, Mettlead delivers.

Frequently Asked Questions – Output Shaft Assy (Left) AZ2203030209

What exactly is the Output Shaft Assy (Left) AZ2203030209 used for?

The AZ2203030209 is a left-side output shaft assembly designed for the SINOTRUK HW series gearbox. Its primary function is to transfer rotational power from the transmission to the left drive axle. Without a properly functioning output shaft, your truck cannot deliver torque to the wheels efficiently, which leads to drivetrain failure and vehicle downtime.

How do I know if AZ2203030209 fits my gearbox?

This output shaft assy is specifically manufactured for SINOTRUK HW series gearboxes, including models like HW19710, HW15710, HW19712, and HW15712. To confirm fitment, simply check your current gearbox model plate or cross-reference the OEM part number AZ2203030209 with your maintenance manual. If you are unsure, send us your gearbox nameplate photo and we will verify compatibility for free.

What causes a left output shaft assembly to fail?

In heavy-duty truck applications, output shaft wear typically results from prolonged overloading, insufficient gearbox oil, contaminated lubricant, or high-mileage fatigue. Spline wear, pitting on bearing surfaces, and shaft bending are the most common failure modes. Regular gearbox oil changes and timely replacement of worn seals help extend the service life of the AZ2203030209 output shaft assy.

Is this output shaft assembly an OEM original or aftermarket part?

Mettlead supplies OEM-equivalent aftermarket parts that meet or exceed the original SINOTRUK specifications. Every Output Shaft Assy (Left) AZ2203030209 is manufactured using the same grade of alloy steel and undergoes identical heat treatment processes, ensuring identical performance to the factory-installed component – at a significantly lower price point.

Can I order a sample before placing a bulk order?

Absolutely. We encourage new customers to order a sample unit of the AZ2203030209 output shaft assembly for physical inspection and test-fitting before committing to larger quantities. This builds confidence in both product quality and our supply capability.

What is the typical lead time for the AZ2203030209?

For in-stock items, we usually ship within 3–5 working days after payment confirmation. For larger custom orders or white-label packaging requirements, production lead time is typically 7–15 working days depending on quantity.

Ready to Source Your Output Shaft Assy (Left) AZ2203030209?

Finding a dependable supplier for SINOTRUK HW series gearbox parts should not be complicated. At Mettlead, we combine factory-direct pricing, rigorous quality inspection, and responsive communication to make your procurement process effortless. Whether you need a single piece of the AZ2203030209 output shaft assembly or a full container of mixed gearbox components, our team is standing by to provide a fast, accurate quotation.

Take the next step today: Contact us now to request a quote, confirm part availability, or ask any technical question about the Output Shaft Assy (Left) AZ2203030209 for your SINOTRUK HW series gearbox. We typically respond within 12 hours – because we know in the truck parts business, time is money.