Product Introduction

• Structure: Precision forged from 40Cr alloy steel, featuring an integral flange with 4 bolt holes for drive shaft connection, and an internal splined bore (46 teeth) for engagement with the main shaft. The flange face is precision-machined to ensure perpendicularity with the main shaft, and the entire component undergoes high-frequency quenching and black oxide treatment, achieving surface hardness HRC 50–55for wear resistance, and core hardness HRC 30–35 for impact toughness.

• Performance: The integral forging design ensures high torsional rigidity, preventing flange deformation under ultra-heavy loads. The precision-machined flange face ensures a perfect fit with the drive shaft, reducing driveline vibration and noise. The high-frequency quenched splined bore resists wear from long-term main shaft rotation, maintaining a secure connection for over 80,000 hours of operation.

Core Function

1. Ultra-heavy load power transfer: Transmits torque from the transmission main shaft to the drive shaft, supporting the highest load capacity of the HW25712 transmission.

2. Precision drive shaft connection: The flange bolt holes ensure concentric alignment with the drive shaft, minimizing driveline vibration and improving ride comfort.

3. High-torque durability: The forged construction and hardened splines withstand continuous high-torque transmission without deformation or slippage.

Output Flange Φ180 Teethed WG2210100018 – SINOTRUK HW Series Gearbox

When your SINOTRUK HW series gearbox demands a reliable power transfer solution, the Output Flange Φ180 Teethed WG2210100018 stands ready to deliver. Engineered to meet OEM specifications, this teethed output flange ensures smooth torque transmission from the gearbox to the driveline — keeping your heavy-duty trucks running without costly downtime. At Mettlead, we supply this genuine-equivalent gearbox component at factory-direct prices, so procurement managers like you can secure top-tier quality without stretching the budget.

Key Features and Benefits of Output Flange Φ180 Teethed WG2210100018

Every component in a heavy truck’s drivetrain plays a critical role, and the output flange is no exception. Here is what makes the WG2210100018 Output Flange Φ180 Teethed a smart procurement choice:

• Precision-Machined Teethed Profile: The Φ180 splined (teethed) design guarantees a secure, slip-free connection between the gearbox output shaft and the drive flange yoke, minimizing vibration and wear over thousands of operating hours.
• High-Strength Alloy Steel Construction: Forged and heat-treated to withstand extreme torque loads typical in SINOTRUK HOWO and SITRAK heavy trucks, this flange resists fatigue cracking even under continuous heavy hauling.
• OEM-Grade Dimensional Accuracy: Manufactured to match the original SINOTRUK HW gearbox assembly tolerances, ensuring drop-in fitment without modifications or adapter pieces.
• Superior Surface Finish: Precision grinding on the spline teeth reduces friction during engagement, contributing to quieter operation and extended service life.
• Corrosion-Resistant Coating: A protective surface treatment shields the flange from moisture and chemical exposure during storage and field operation.
• Cost-Effective Replacement: Factory-direct pricing from Mettlead means you get OEM-equivalent quality at a fraction of dealer costs — ideal for fleet operators managing large-scale maintenance budgets.

Technical Specifications – WG2210100018 Output Flange Φ180

Application Scenario – Where Does WG2210100018 Fit?

The Output Flange Φ180 Teethed WG2210100018 is specifically designed for the SINOTRUK HW series gearbox — one of the most widely deployed heavy-duty transmissions across global markets. In practical terms, this flange sits at the rear output of the transmission housing, transferring engine torque through the splined connection to the propeller shaft flange yoke.

This component is your go-to replacement in the following scenarios:

• Compatible Gearbox: SINOTRUK HW series manual and automated transmissions (HW15710, HW19710, HW25716, etc.)
• Applicable Truck Models: SINOTRUK HOWO A7, HOWO T7H, SITRAK C7H, SITRAK G7, and legacy STEYR heavy-duty trucks
• Replacement Situation: Worn spline teeth causing driveline vibration, stripped or cracked output flange during overhaul, scheduled preventive maintenance on high-mileage fleet vehicles
• Operating Environments: Long-haul freight, mining haulage, construction site transport, and any application where the HW gearbox is subjected to sustained high-torque loads

If you are managing a fleet of SINOTRUK trucks or operating a gearbox rebuild workshop, keeping WG2210100018 in stock prevents extended vehicle downtime during unplanned maintenance events. For more SINOTRUK HOWO gearbox parts, explore our dedicated category.

OEM/ODM Capability – Tailored to Your Brand

At Mettlead, we understand that distributors and aftermarket brands need more than just a quality part — you need a partner who supports your brand identity. That is why we offer flexible OEM and ODM services for the Output Flange Φ180 Teethed WG2210100018 and our entire gearbox parts catalog.

• White-Label Packaging: Ship the flange in neutral packaging or under your own brand label — perfect for aftermarket distributors building regional brand presence.
• Custom Packaging Design: We produce branded boxes, anti-rust wrapping, and labeled poly bags according to your artwork specifications.
• Strict Quality Control: Every WG2210100018 output flange undergoes dimensional inspection, hardness testing, and spline profile verification before leaving our facility.
• Flexible MOQ: Whether you need a trial order of 10 pieces or a container load of 2,000 units, our production line adapts to your volume requirements.
• Private Labeling Documentation: We can include your branded warranty cards, installation guides, and certification documents inside the package.

Browse our full range of SINOTRUK HOWO truck parts and spare parts to see what else we can supply under your brand.

Customer Case Study – WG2210100018 Output Flange Bulk Order

Earlier this year, a fleet maintenance company based in East Africa reached out to Mettlead with an urgent requirement. They managed over 120 SINOTRUK HOWO tipper trucks operating in a mining region, and recurring driveline vibrations were traced back to worn output flanges on the HW series gearboxes.

After receiving a sample of our Output Flange Φ180 Teethed WG2210100018, their engineering team verified the spline dimensions, hardness, and fitment against their existing fleet. The result? A confirmed bulk order of 200 pieces with white-label packaging carrying their company branding.

Within 15 days of order confirmation, the entire shipment was dispatched via sea freight. Since installation, the client reported zero premature failures across the replacement batch — and subsequently expanded their orders to include additional SINOTRUK gearbox components such as synchronizer rings, gear shafts, and bearing kits.

“We tested many suppliers before Mettlead. The WG2210100018 output flange quality matches the original, but at 40% lower cost. Delivery was faster than expected.” — Procurement Manager, East Africa Fleet Services

Frequently Asked Questions – Output Flange Φ180 Teethed WG2210100018

1. What is the exact function of the Output Flange Φ180 Teethed in the HW gearbox?

The output flange connects the gearbox output shaft to the driveline propeller shaft via a teethed (splined) interface. It transmits all driving torque from the transmission to the rear axle, so any wear or damage to its spline teeth directly affects power delivery and causes driveline vibration.

2. How do I confirm that WG2210100018 fits my specific HW gearbox model?

WG2210100018 is the standard OEM part number for the Φ180 teethed output flange across the SINOTRUK HW gearbox family. To verify compatibility, check your gearbox nameplate for the transmission model number (e.g., HW19710) and cross-reference with the SINOTRUK parts catalog. Alternatively, send us your gearbox model number and we will confirm fitment for you.

3. What causes the output flange spline teeth to wear prematurely?

Common causes include insufficient lubrication at the spline interface, misalignment between the gearbox and propeller shaft, excessive torque shock from aggressive driving habits, and prolonged operation beyond recommended service intervals. Regular inspection during scheduled maintenance helps catch early-stage wear before it leads to failure.

4. Is this output flange an original SINOTRUK part or an aftermarket equivalent?

Mettlead supplies OEM-equivalent aftermarket parts manufactured to match original SINOTRUK specifications in material, dimensions, and hardness. Our WG2210100018 output flange passes the same dimensional and performance benchmarks as the factory-installed component, ensuring reliable drop-in replacement at a more competitive price point.

5. Can I order a sample of the WG2210100018 Output Flange before committing to a bulk purchase?

Absolutely. We encourage procurement managers to order samples for quality verification. You can request a single unit or a small trial quantity, inspect the spline profile and material quality, and then proceed to volume ordering with full confidence.

6. What is the typical lead time for bulk orders of this output flange?

For standard stock quantities, we ship within 3–7 business days. Large custom or white-label orders typically require 10–20 days depending on volume and packaging requirements. We always confirm the exact timeline before you commit.

Ready to Secure Your Supply of WG2210100018 Output Flanges?

Whether you need a single replacement or a full container of Output Flange Φ180 Teethed WG2210100018 for your SINOTRUK HW gearbox fleet, Mettlead delivers factory-quality parts at competitive wholesale prices — with fast, reliable shipping to any destination worldwide.

Take the next step today:

• Request a free quotation with your required quantity
• Ask about sample orders for quality verification
• Inquire about white-label packaging for your brand
• Schedule a factory visit to see our production and QC process firsthand

Contact us now to get your personalized quote on the WG2210100018 Output Flange and experience the Mettlead difference — quality parts, honest pricing, and a team that genuinely cares about keeping your trucks on the road.