Product Introduction

• Structure: A precision monoblock forging from 20CrMnTi alloy steel, integrating two fixed gears (1st and 2nd speed) and a precision-ground support journal. The shaft features an external spline section (16 teeth) at the axle end for differential engagement, and the 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 monoblock forging eliminates gear-shaft assembly gaps, ensuring high torsional rigidity for medium-load operation. The hardened gear surfaces resist wear in frequent shifting scenarios, while the precision journal maintains shaft concentricity, reducing running noise and bearing wear.

Core Function

1. Medium-load power output: Transmits torque from the transmission countershaft to the left drive axle, supporting the load capacity of the HW19710 transmission.

2. Multi-speed torque transfer: The integrated 1st/2nd gears mesh with the countershaft gears to deliver torque across low-speed driving scenarios.

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

Output Shaft (Left) AZ2210030220 – SINOTRUK HW Series Gearbox Replacement Part

When your SINOTRUK HW series gearbox demands a reliable left output shaft replacement, the Output Shaft (Left) AZ2210030220 delivers the precise fitment and durability your fleet needs to stay on the road. Engineered to meet OEM specifications, this gearbox output shaft ensures smooth torque transmission and long-lasting performance under heavy-duty conditions. At Mettlead, we supply this genuine-equivalent part at factory-direct pricing — so you get the quality you expect without the inflated cost.

Key Features and Benefits of Output Shaft (Left) AZ2210030220

Choosing the right output shaft is critical because it directly affects the power delivery and service life of your entire transmission system. Here is what makes this SINOTRUK HW gearbox output shaft stand out:

• OEM-Equivalent Precision: Manufactured to match the original SINOTRUK specifications, ensuring drop-in fitment with no modifications required.
• Premium Material Construction: Forged from high-strength alloy steel that resists wear, fatigue, and torsional stress even under continuous heavy loads.
• Heat-Treated Surface: Advanced carburizing and quenching processes deliver exceptional surface hardness while maintaining core toughness.
• Smooth Torque Transfer: Precision-ground splines and journals guarantee efficient power transmission from the gearbox to the drive axle.
• Extended Service Life: Strict dimensional tolerances reduce vibration and uneven wear, helping you avoid premature failures and costly downtime.
• Factory-Direct Pricing: By sourcing directly from Mettlead, you eliminate middlemen and reduce your per-unit procurement cost significantly.

Technical Specifications – Output Shaft (Left) AZ2210030220

Below you will find the detailed technical parameters for this SINOTRUK HW series gearbox output shaft. These specifications help you confirm compatibility and make informed purchasing decisions:

Application Scenario – Where Does This Output Shaft Fit?

The Output Shaft (Left) AZ2210030220 is specifically designed for the SINOTRUK HW series gearbox, which is widely used across HOWO heavy-duty trucks and SITRAK vehicles. In other words, if your truck relies on an HW transmission to haul heavy cargo over long distances, this is the exact left output shaft that keeps your drivetrain running smoothly.

Common applications include:

• SINOTRUK HOWO heavy-duty tippers and dump trucks
• SINOTRUK HOWO tractor heads for long-haul logistics
• SITRAK C7H and G7 series trucks equipped with HW gearboxes
• Mining and construction vehicles using SINOTRUK HW transmissions
• Fleet vehicles requiring scheduled gearbox overhaul and parts replacement

Whether you are maintaining a municipal fleet or managing a mining operation, this output shaft fits seamlessly into your existing HW gearbox assembly. For more SINOTRUK transmission components, browse our complete Gearbox Parts Collection and SINOTRUK HOWO Gearbox Parts catalog.

OEM/ODM Capability and Custom Packaging

At Mettlead, we understand that different markets have different branding requirements. That is why we offer flexible options to match your business strategy:

• White-Label Packaging: Receive the Output Shaft (Left) AZ2210030220 in neutral boxes — perfect if you distribute under your own brand name.
• Custom Packaging: We can print your logo, part number, and branding on the packaging to strengthen your market presence.
• Strict Quality Control: Every output shaft goes through dimensional inspection, hardness testing, and surface finish verification before shipment.
• Bulk Order Support: Whether you need 10 units or 10,000, our production capacity scales to meet your demand without compromising lead times.
• Factory Visits Welcome: We invite procurement managers to visit our facility in China to inspect production lines and verify quality firsthand.

Explore the full range of SINOTRUK spare parts we carry by visiting our SINOTRUK HOWO Truck Parts brand page.

Customer Case Study – Output Shaft AZ2210030220 for East African Fleet

Earlier this year, a fleet management company operating over 200 SINOTRUK HOWO trucks in East Africa reached out to Mettlead with an urgent requirement. Their trucks were experiencing increased gearbox noise and power loss — symptoms pointing directly to worn left output shafts in their HW series transmissions.

After confirming the part number AZ2210030220, our team shipped 150 units of the Output Shaft (Left) within 12 days. The client reported that installation was seamless, thanks to the OEM-equivalent dimensional accuracy. Moreover, six months later, their maintenance logs showed zero repeat failures on the replaced units — a clear sign of the material quality and heat treatment consistency Mettlead delivers.

This experience reinforced what we hear from procurement managers worldwide: when you source the Output Shaft (Left) AZ2210030220 from Mettlead, you get peace of mind alongside competitive pricing.

Frequently Asked Questions – Output Shaft (Left) AZ2210030220

What gearbox models does the Output Shaft (Left) AZ2210030220 fit?

This output shaft is designed specifically for the SINOTRUK HW series gearbox. It fits various HW transmission models commonly installed in HOWO and SITRAK heavy-duty trucks. Always verify the part number AZ2210030220 against your gearbox nameplate to confirm compatibility.

What material is the Output Shaft (Left) AZ2210030220 made from?

The shaft is forged from high-strength alloy steel and undergoes carburizing and quenching heat treatment. This combination ensures a hard, wear-resistant surface with a tough, fatigue-resistant core — essential for withstanding the high torque loads in heavy-duty transmissions.

How can I tell if my left output shaft needs replacement?

Common symptoms include unusual noise from the gearbox during acceleration, vibration through the drivetrain, difficulty engaging gears, and visible wear or scoring on the shaft splines. If your truck shows any of these signs, inspecting the output shaft during a scheduled overhaul is strongly recommended.

Is this output shaft identical to the original SINOTRUK part?

Yes, the Output Shaft (Left) AZ2210030220 supplied by Mettlead is manufactured to OEM-equivalent specifications. It matches the original in dimensions, material grade, heat treatment, and surface finish — ensuring direct interchangeability without modifications.

What is the typical lead time for bulk orders?

For standard stock quantities, we typically ship within 5–7 business days. Larger bulk orders may require 10–15 days depending on quantity. Our logistics team works with reliable freight partners to deliver to ports and warehouses worldwide as fast as possible.

Can I order a sample before committing to a bulk purchase?

Absolutely. We encourage procurement managers to order a sample of the Output Shaft (Left) AZ2210030220 first. This way, you can inspect dimensions, material quality, and packaging before placing a larger order.

Ready to Source Output Shaft (Left) AZ2210030220? Get Your Quote Now

Stop letting worn gearbox components slow your fleet down. The Output Shaft (Left) AZ2210030220 for SINOTRUK HW series gearboxes is in stock and ready to ship at factory-direct prices from Mettlead.

As a trusted supplier of SINOTRUK, HOWO, SHACMAN, FAW, WEICHAI, DONGFENG, and FOTON truck parts, we make your procurement process simple: competitive pricing, strict quality control, flexible payment options, and global delivery you can count on.

Take the next step: Contact Us today to request a quotation, ask about MOQ, or arrange a factory visit. Our team typically responds within 24 hours — because we know that in fleet management, every hour of downtime counts.