Product Introduction

• Structure: Precision-stamped from high-strength alloy steel (65Mn), with a flat, rigid circular design and precise inner/outer diameter. Surface is heat-treated for hardness (HRC 40–45) and finished with black oxide for corrosion resistance. The washer features a uniform thickness and smooth contact surfaces to ensure stable axial support.

• Performance: High rigidity resists axial thrust forces from gear meshing and shifting, preventing axial movement of gears/synchronizers. The hardened surface withstands friction and wear under heavy load, while the flat design ensures even load distribution and minimal vibration.

Core Function

1. Axial Positioning: Locks gears, synchronizer hubs, or bearing assemblies in their designated axial positions on the main shaft/countershaft, preventing unwanted movement during operation.

2. Thrust Load Absorption: Absorbs and distributes axial thrust forces generated by gear meshing, shifting, and heavy-load torque, protecting shafts and gears from damage.

3. Clearance Control: Maintains precise axial clearance between rotating components, ensuring smooth gear meshing and reducing noise/vibration.

Big Stop Washer WG2210040002 – SINOTRUK HW Series Gearbox Spare Part

Premium Big Stop Washer WG2210040002 for SINOTRUK HW Series Gearbox

When your heavy-duty truck’s gearbox demands precision and durability, every single component matters — especially the big stop washer. The Big Stop Washer WG2210040002 is specifically engineered for the SINOTRUK HW Series Gearbox, serving as a critical thrust element that prevents excessive axial movement and protects internal gear assemblies from premature wear. In other words, this small but mighty washer keeps your entire transmission running smoothly under the toughest operating conditions.

At Mettlead, we supply this genuine-spec gearbox component directly from our factory in China, which means you get competitive pricing without sacrificing quality. Whether you’re managing a fleet maintenance workshop in Africa, a spare parts distribution center in Southeast Asia, or a mining operation in the Middle East, our Big Stop Washer WG2210040002 SINOTRUK HW Series Gearbox part delivers consistent performance you can count on.

Key Features and Benefits of Big Stop Washer WG2210040002

So, what makes this particular big stop washer stand out from generic alternatives? Let’s break it down:

• Precise OEM Fitment: Manufactured to exact OEM specifications, this washer fits perfectly within the SINOTRUK HW series gearbox housing, ensuring proper axial clearance and smooth gear engagement.
• Superior Material Composition: Crafted from high-grade alloy steel with enhanced surface hardening treatment, it resists wear, heat deformation, and fatigue cracking even under continuous heavy loads.
• Extended Service Life: Thanks to its optimized thickness tolerance and surface finish, the WG2210040002 big stop washer significantly reduces friction-related damage, thereby extending the overall lifespan of your gearbox.
• Reduced Downtime: A properly functioning thrust washer prevents catastrophic gearbox failures. By choosing this quality replacement part, you minimize unplanned downtime and costly emergency repairs.
• Cost-Effective Factory-Direct Pricing: Since Mettlead ships directly from our warehouse in China, you eliminate middleman markups and enjoy wholesale pricing on every order.
• Strict Quality Control: Each batch undergoes dimensional inspection, hardness testing, and surface quality verification before packaging — so you receive only parts that meet the standard.

Technical Specifications – Big Stop Washer WG2210040002

For procurement managers who need to verify exact part compatibility, here are the detailed specifications of this SINOTRUK HW gearbox big stop washer:

Application Scenarios – Where Does Big Stop Washer WG2210040002 Fit?

Understanding exactly where this component belongs helps you make confident purchasing decisions. The Big Stop Washer WG2210040002 is installed inside the SINOTRUK HW series gearbox, where it sits between the gear shaft and the bearing housing. Its primary role is to absorb axial thrust forces generated during gear shifting and power transmission.

More specifically, this washer is compatible with the following applications:

• Compatible Gearbox Models: SINOTRUK HW15710, HW19710, HW20716, and other HW series heavy-duty manual transmissions.
• Compatible Truck Models: SINOTRUK HOWO A7, HOWO T7H, SITRAK C7H, and other heavy-duty trucks equipped with HW series gearboxes.
• Typical Use Cases: Long-haul freight transport, mining and construction site haulage, container port tractor units, and any application where the gearbox endures high torque loads on a daily basis.

If your fleet runs on SINOTRUK heavy-duty platforms, then this big stop washer is an essential inventory item for routine gearbox overhauls and preventive maintenance programs. Browse more related components in our Gearbox Parts Category and our dedicated SINOTRUK HOWO Gearbox Parts page for a complete selection.

OEM/ODM Capabilities – Custom Packaging and White-Label Service

At Mettlead, we understand that different markets have different branding requirements. That’s why we offer flexible OEM and ODM services for the Big Stop Washer WG2210040002 and all our SINOTRUK gearbox parts:

• White-Label Packaging: Want to sell under your own brand? We can package this washer with your company logo, part number labels, and custom design boxes — giving your customers a professional unboxing experience.
• Custom Packaging Options: From individual poly bags to bulk carton packaging, we tailor the packaging solution to your logistics and storage needs.
• Bulk Order Flexibility: Whether you need 50 pieces or 5,000, our production line adapts to your volume requirements with consistent lead times.
• Quality Documentation: We can provide inspection reports, material certificates, and batch traceability records upon request.

To explore our full range of SINOTRUK compatible parts with OEM/ODM options, visit our SINOTRUK HOWO Truck Parts brand page.

Customer Case Study – Big Stop Washer WG2210040002 in Action

Earlier this year, a fleet maintenance company based in Nigeria reached out to Mettlead with an urgent requirement. They managed over 120 SINOTRUK HOWO trucks used for cement haulage, and several vehicles were experiencing gearbox noise and abnormal shifting behavior. After diagnosis, their technicians identified worn big stop washers as the root cause — the original thrust washers had thinned beyond tolerance due to prolonged heavy-load operation.

The procurement manager needed 200 pieces of Big Stop Washer WG2210040002 for their SINOTRUK HW Series Gearbox fleet, and needed them fast. Within 24 hours of receiving their inquiry, we confirmed pricing, verified stock availability, and provided a detailed quotation. The entire order shipped within 5 working days via air freight.

After installation, the client reported smoother gear engagement, eliminated transmission noise, and confirmed that the parts matched OEM quality perfectly. Moreover, because our factory-direct pricing was approximately 30% below their previous local supplier, they saved significantly on their total maintenance budget. Since then, they’ve placed three repeat orders for various SINOTRUK HW gearbox components, including counter shafts, synchronizer rings, and additional big stop washers.

This is what reliable partnership looks like — and it starts with a single inquiry.

Frequently Asked Questions – Big Stop Washer WG2210040002

What is the function of the Big Stop Washer WG2210040002 in the SINOTRUK HW gearbox?

The big stop washer acts as a thrust bearing surface inside the HW series gearbox. It absorbs axial forces generated by helical gears during operation, preventing metal-to-metal contact between the shaft shoulder and the bearing seat. Without a properly functioning thrust washer, excessive end-play develops, leading to gear misalignment, increased noise, and eventually gearbox failure.

How do I know if my Big Stop Washer WG2210040002 needs replacement?

Common symptoms include unusual grinding or whining noises from the gearbox, difficulty engaging gears, increased shaft end-play measured during inspection, and visible scoring or thinning of the washer surface. During scheduled gearbox overhauls, technicians should always measure the thickness of the big stop washer against OEM specifications and replace it if it falls outside tolerance.

Is this WG2210040002 big stop washer compatible with all SINOTRUK gearboxes?

No. The WG2210040002 is specifically designed for the SINOTRUK HW series gearbox family, including models like HW15710 and HW19710. It is not interchangeable with washers from other gearbox series such as the 10-speed or 6-speed units. Always verify your gearbox model number before ordering to ensure correct fitment.

What material is the Big Stop Washer WG2210040002 made from?

This washer is manufactured from high-grade alloy steel that undergoes heat treatment for optimal hardness and wear resistance. The surface is precision-ground to achieve the tight flatness and thickness tolerances required for reliable thrust load distribution inside the gearbox.

Can I order a small quantity for testing before committing to bulk purchases?

Absolutely. Mettlead supports flexible minimum order quantities, so you can start with a sample order to verify quality and fitment in your workshop. Once you’re satisfied — and we’re confident you will be — scaling up to larger volumes is seamless.

How should I store the Big Stop Washer WG2210040002 to prevent damage?

Store the washers in a dry, temperature-controlled environment away from corrosive chemicals. Keep them in their original packaging until installation. Avoid stacking heavy items on top of the washers, as deformation — even slight — can compromise their performance once installed in the gearbox.

Ready to Order Big Stop Washer WG2210040002? Let’s Talk.

Every minute of gearbox downtime costs your operation money. Don’t wait until a minor thrust washer issue turns into a major transmission overhaul. The Big Stop Washer WG2210040002 for SINOTRUK HW Series Gearbox is in stock and ready to ship from our China warehouse to your doorstep — wherever in the world that may be.

Here’s what you get when you partner with Mettlead:

• Factory-direct competitive pricing
• Fast order processing and reliable global shipping
• Strict quality control on every single piece
• White-label and custom packaging options
• Dedicated support from our experienced parts specialists
• Flexible and secure payment methods

Send us your inquiry today and receive a detailed quotation within 24 hours. Whether you need 10 pieces or 10,000, we’re ready to support your gearbox parts needs.

👉 Contact Us Now to Get Your Free Quote

You’re also welcome to visit our facility in China for an on-site inspection — because we believe that trust is built face to face.