Product Introduction

This sliding sleeve is a critical component for engaging high/low gear ranges, translating the force from the shift fork into a synchronized gear engagement.

• Structure & Material: Manufactured from high-strength 20CrMnTi alloy steel, with an internal splined bore and external gear teeth. The inner splines mesh with the range gear seat, while the outer teeth engage with the planetary gear set.

• Heat Treatment: Full carburizing and quenching processes achieve a surface hardness of HRC 58–62 for wear resistance, while maintaining a core hardness of HRC 33–45 for impact toughness. The green coating on the splines enhances lubrication and reduces friction.

• Precision Fit: Machined to tight tolerances, it ensures smooth axial movement and precise meshing with both the range gear seat and planetary gear set.

Core Function

1. Range Engagement: Moves axially under the action of the shift fork to engage either high or low range by meshing with the planetary gear set.

2. Synchronized Torque Transfer: Transmits torque from the range gear seat to the planetary gear set, ensuring power delivery during range shifts.

3. Clash-Free Shifting: Works with the synchronizer ring to equalize rotational speeds, enabling smooth, clash-free engagement between gear components.

Range Gear Syn. Sliding Sleeve WG2210100008 – SINOTRUK HW Series Gearbox

When your SINOTRUK HW series gearbox demands precise synchronization in the auxiliary section, the Range Gear Syn. Sliding Sleeve WG2210100008 is exactly the component that keeps everything shifting smoothly. Engineered to meet OEM specifications, this sliding sleeve serves as the critical link between synchronized gear engagement and reliable power transmission. Whether you are restocking your warehouse or fulfilling urgent fleet maintenance orders, Mettlead delivers this genuine-quality gearbox component at factory-direct pricing — so your margins stay healthy while your customers stay on the road.

Key Features and Benefits of Sliding Sleeve WG2210100008

This isn’t just another replacement part sitting on a shelf. The Range Gear Syn. Sliding Sleeve WG2210100008 is precision-manufactured to restore the full shifting performance of SINOTRUK HW series gearboxes. Here’s what makes it stand out for wholesale buyers:

• OEM-Grade Precision: Manufactured to exact dimensional tolerances, ensuring seamless engagement with the range gear synchronizer assembly in HW gearboxes.
• Superior Material Composition: Crafted from high-strength alloy steel with optimized heat treatment, delivering excellent wear resistance and extended service life under heavy-load conditions.
• Smooth Synchronization Performance: The spline teeth and engagement surfaces are finely machined to eliminate shifting hesitation, reduce noise, and protect adjacent synchronizer components from premature wear.
• Direct Replacement Design: Drops in as a 1:1 replacement for OEM part number WG2210100008 — no modifications or additional adapters needed.
• Wholesale-Friendly Pricing: Factory-direct sourcing from China means you bypass middlemen and enjoy competitive bulk pricing that protects your profit margins.
• Strict Quality Control: Every batch undergoes dimensional inspection, hardness testing, and surface finish verification before shipment leaves our facility.

Technical Specifications – WG2210100008 Range Gear Syn. Sliding Sleeve

Accurate specifications matter when you are matching parts to customer orders. The table below provides the essential parameters for this SINOTRUK HW series gearbox sliding sleeve:

Application Scenario – Where Does WG2210100008 Fit?

The Range Gear Syn. Sliding Sleeve WG2210100008 is specifically designed for the auxiliary (range) section of SINOTRUK HW series gearboxes. In practical terms, this component handles the high-low range shifting mechanism that allows drivers to access the full spread of gear ratios in heavy-duty applications.

Compatible vehicle and gearbox applications include:

• SINOTRUK HOWO A7 heavy-duty trucks equipped with HW19710 / HW19712 gearboxes
• SINOTRUK HOWO T7H and T5G models with HW series transmissions
• SITRAK C7H trucks utilizing HW gearbox configurations
• Various SINOTRUK tractor heads, dump trucks, and mixer trucks relying on HW auxiliary range synchronizers

Whenever a driver reports difficulty engaging high or low range, grinding noises during range shifts, or complete range gear failure, this sliding sleeve is typically among the primary components requiring inspection and replacement. For distributors, it represents a fast-moving SKU with consistent aftermarket demand across African, Middle Eastern, Southeast Asian, and South American truck markets.

Explore our full range of gearbox parts and SINOTRUK HOWO gearbox components to complement your inventory.

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

As a wholesale distributor, your brand identity matters. Mettlead understands that you are not just buying parts — you are building a reputation in your market. That’s why we offer flexible OEM and ODM services for the Range Gear Syn. Sliding Sleeve WG2210100008 and our entire SINOTRUK parts catalog:

• White-Label Packaging: We supply this sliding sleeve in neutral boxes ready for your own branding labels, or fully custom-printed packaging featuring your company logo and part numbers.
• Custom Packaging Design: Need specific box sizes, multilingual labels, or barcoding for your market? Our packaging team accommodates your requirements.
• Flexible MOQ: We work with wholesale partners at various scales. Whether you need a trial order or full container loads, our team will structure pricing that makes commercial sense.
• Private Catalog Support: Building your own aftermarket brand for SINOTRUK gearbox parts? We can supply consistent quality across hundreds of SKUs under your label.

Browse our complete SINOTRUK HOWO truck parts catalog to see the full scope of components available for your private-label program.

Customer Case Study – WG2210100008 Sliding Sleeve Bulk Order

Earlier this year, a truck parts distributor based in Lagos, Nigeria, approached Mettlead with an urgent requirement. Their fleet maintenance clients were experiencing widespread range gear shifting failures across SINOTRUK HOWO A7 dump trucks operating in mining applications. The root cause? Worn Range Gear Syn. Sliding Sleeves that had exceeded their service life under extreme load conditions.

After verifying the OEM part number WG2210100008 against their gearbox model specifications, we shipped an initial order of 200 units of the Range Gear Syn. Sliding Sleeve WG2210100008 for SINOTRUK HW series gearboxes. Each piece was individually inspected, vacuum-sealed, and packed in custom boxes carrying the distributor’s own brand.

The result? Their end customers reported smooth range gear engagement restored to factory-new performance. Within three months, the distributor placed a repeat order for 500 units — expanding their coverage to include SITRAK fleet operators in the same region. Today, they carry Mettlead-sourced WG2210100008 sliding sleeves as a permanent high-demand SKU in their warehouse.

This is the kind of partnership we build: you identify the demand, and we deliver reliable Range Gear Syn. Sliding Sleeve WG2210100008 gearbox parts that keep your customers coming back.

Frequently Asked Questions – WG2210100008 Sliding Sleeve

What exactly does the Range Gear Syn. Sliding Sleeve WG2210100008 do inside the gearbox?

The sliding sleeve sits within the auxiliary section of the SINOTRUK HW series gearbox. Its job is to physically engage and lock the range gear synchronizer, allowing the transmission to switch between high and low range positions. Think of it as the mechanical bridge that translates synchronizer friction into actual gear engagement — without it, range shifting simply cannot occur.

How do I know when the WG2210100008 sliding sleeve needs replacement?

Common symptoms include difficulty shifting between high and low range, grinding or clashing noises during range engagement, the range gear popping out of position under load, or complete failure to engage one range. If the spline teeth on the sliding sleeve are worn, chipped, or rounded, replacement with a new WG2210100008 is necessary to restore proper gearbox function.

Is this sliding sleeve WG2210100008 compatible with all SINOTRUK HW gearbox models?

Yes, the WG2210100008 Range Gear Syn. Sliding Sleeve is designed for the HW series gearbox family, including popular models like HW19710, HW19712, HW15710, and related variants. However, we always recommend confirming the OEM part number against your specific gearbox assembly drawing before ordering in bulk.

What material is used, and how long does this sliding sleeve typically last?

The WG2210100008 sliding sleeve is manufactured from heat-treated alloy steel with engagement surfaces hardened to HRC 58–62. Under normal operating conditions and with proper gearbox maintenance (correct oil level, clean fluid, proper shifting technique), it delivers a service life comparable to the original OEM part — typically 200,000 to 400,000 km depending on application severity.

Can I order the WG2210100008 with my own brand packaging?

Absolutely. Mettlead provides white-label and custom packaging services for wholesale distributors. You can receive the Range Gear Syn. Sliding Sleeve WG2210100008 in neutral packaging or fully branded boxes with your logo, part number, and market-specific labeling.

What is the minimum order quantity for wholesale pricing?

MOQ is flexible and depends on your business requirements. We accommodate both trial orders for new distributors and large-volume container orders for established partners. Contact our sales team with your estimated quantity for a tailored quotation.

Ready to Stock the Range Gear Syn. Sliding Sleeve WG2210100008?

Your customers need reliable SINOTRUK HW gearbox parts — and they need them fast. When you partner with Mettlead, you get factory-direct pricing on the WG2210100008 sliding sleeve, rigorous quality inspection on every batch, flexible packaging options, and fast international shipping to keep your shelves stocked and your business growing.

Take the next step today:

• Request a wholesale quotation with your target quantity
• Ask about custom packaging and white-label options
• Inquire about related SINOTRUK HW gearbox components to round out your order

Contact Mettlead now to get your personalized quote for the Range Gear Syn. Sliding Sleeve WG2210100008 and discover why distributors across 30+ countries trust us as their SINOTRUK parts supply partner.