Product Introduction

This reverse gear block is a critical safety and precision component in the transmission’s shift system, designed to limit the travel of the reverse gear shift fork.

• Structure & Material: Precision-forged from high-strength alloy steel, with a robust, compact design featuring a pivot bore and a locating tab. The surface is treated for enhanced wear resistance and corrosion protection.

• Precision Fit: Machined to tight dimensional tolerances, it interfaces with the reverse gear shift fork and transmission housing to provide a positive mechanical stop.

• Durability: The forged steel construction withstands high impact forces during reverse gear engagement, ensuring reliable performance over long service life.

Core Function

1. Shift Travel Limitation: Acts as a mechanical stop to limit the axial travel of the reverse gear shift fork, ensuring precise engagement of the reverse gear.

2. Safety Protection: Prevents over-travel of the shift fork, which could cause damage to the reverse gear or synchronizer components.

3. Precision Engagement: Ensures the reverse gear is engaged in the correct position, minimizing gear clash and wear.

Reverse Gear Block WG2214220002 – SINOTRUK HW Series Gearbox Spare Part

When your SINOTRUK HW series gearbox needs a reliable reverse gear block, settling for anything less than OEM-equivalent quality simply isn’t an option. The Reverse Gear Block WG2214220002 is precision-engineered to keep your heavy-duty truck transmission shifting smoothly into reverse — every single time. As a result, fleet downtime drops, maintenance costs shrink, and your end customers stay on the road where they belong.

At Mettlead, we supply this genuine-spec gearbox component directly from our factory in China, which means you get unbeatable wholesale pricing without sacrificing the quality your buyers demand. Whether you’re a parts distributor in Africa, the Middle East, or Southeast Asia, this page gives you everything you need to make a confident purchasing decision.

Key Features and Benefits of Reverse Gear Block WG2214220002

Understanding exactly what makes this reverse gear block stand out will help you see why distributors across the globe keep reordering from Mettlead. Here’s a closer look at the features that matter most:

• Precise Dimensional Accuracy: Manufactured to match OEM specifications, this reverse gear block fits SINOTRUK HW series gearboxes without any modification, ensuring a seamless drop-in installation.
• Premium Material Composition: Crafted from high-strength alloy steel, the block resists wear, fatigue, and deformation — even under the extreme torque loads typical of heavy-duty truck transmissions.
• Extended Service Life: Thanks to advanced heat treatment processes, this component maintains its structural integrity over hundreds of thousands of kilometers.
• Smooth Reverse Engagement: The block’s precision-ground surfaces reduce friction and noise during reverse gear engagement, contributing to a more comfortable driving experience.
• Cost-Effective Wholesale Pricing: Because we manufacture in-house and eliminate middlemen, you enjoy factory-direct margins that boost your bottom line as a distributor.
• Strict Quality Control: Every batch undergoes dimensional inspection, hardness testing, and surface finish verification before shipment — so defective returns stay near zero.

Application Scenario: Compatible Models and Gearbox Fitment

This Reverse Gear Block WG2214220002 is specifically designed as a SINOTRUK HW series gearbox reverse gear limiting block. In other words, it serves as the critical positioning component that controls reverse gear engagement travel within the transmission assembly.

More specifically, it fits the following applications:

• Gearbox Series: SINOTRUK HW Series (HW15710, HW19710, HW25716 and related variants)
• Compatible Truck Models: SINOTRUK HOWO A7, HOWO T7H, SITRAK C7H, and other heavy-duty models equipped with HW-series transmissions
• Function: Acts as the reverse gear limiting block inside the gearbox shift mechanism, preventing over-travel and ensuring accurate gear positioning during reverse selection

Consequently, if your customers operate SINOTRUK heavy trucks and need transmission maintenance or overhaul parts, this reverse gear block is an essential stocking item. For a broader selection of transmission components, explore our full Gearbox Parts Category and our dedicated SINOTRUK HOWO Gearbox Parts page.

Technical Specifications

Below you’ll find the core parameters for the Reverse Gear Block WG2214220002. These specs help you verify fitment and compare against your existing inventory records:

OEM/ODM Capability and Custom Packaging

As a wholesale distributor, you likely sell under your own brand — and Mettlead fully supports that. Here’s how our OEM/ODM services work for the Reverse Gear Block WG2214220002 and other SINOTRUK gearbox parts:

• White-Label Packaging: We ship in neutral boxes with no Mettlead branding, so you can apply your own labels and maintain brand consistency in your local market.
• Custom Packaging Design: Need your company logo, part number, and barcode printed directly on the box? We handle that at production stage — no additional lead time required.
• Private-Label Engraving: For larger orders, we can laser-engrave your brand name or part code directly onto the component surface.
• Flexible MOQ: We work with distributors of all sizes. Whether you need a trial order of 50 pieces or a container load of 5,000 units, our pricing scales accordingly.
• Quality Documentation: We provide certificates of conformity, material test reports, and inspection records to support your own QC processes.

In addition, you’re always welcome to visit our factory in China for an on-site inspection. We believe in building trust through transparency, and many of our long-term partners started their relationship with a factory tour.

Explore more of our SINOTRUK product range on the SINOTRUK HOWO Truck Parts brand page.

Customer Case Study: Reverse Gear Block WG2214220002 Bulk Order for East African Distributor

Earlier this year, a truck parts distributor based in Dar es Salaam, Tanzania reached out to Mettlead looking for a dependable supply of Reverse Gear Block WG2214220002 for SINOTRUK HW series gearboxes. Their previous supplier had delivered inconsistent quality — some blocks were slightly undersized, causing play in the reverse gear mechanism and leading to customer complaints.

After receiving a sample batch of 20 pieces from Mettlead, the distributor’s technical team ran fitment tests on three different HW gearbox variants. Every single reverse gear block passed dimensional inspection and dropped into place without issue. Furthermore, the surface hardness readings matched our stated HRC 58–62 specification perfectly.

As a result, they placed an initial production order of 500 units with custom packaging featuring their own logo. Within 15 days, the shipment was on the water — and within 60 days, they’d reordered. Today, they stock Mettlead’s WG2214220002 reverse gear block as their default SKU for SINOTRUK HW gearbox rebuilds.

“The quality is consistent, the pricing leaves room for good margins, and Mettlead’s team responds fast. That’s exactly what we need as a distributor.” — Procurement Manager, Tanzania

Frequently Asked Questions (FAQ)

What exactly does the Reverse Gear Block WG2214220002 do inside the gearbox?

The reverse gear block — also called a reverse gear limiting block — acts as a mechanical stop within the HW series gearbox shift mechanism. Its primary job is to limit the travel of the shift fork or selector rod when reverse gear is engaged. Without a properly functioning block, the reverse gear may not engage fully or could over-travel, leading to grinding, incomplete engagement, or premature wear on synchronizer components.

Is this reverse gear block an original SINOTRUK part or an aftermarket replacement?

Mettlead manufactures this part to OEM-equivalent specifications. That means it matches the original WG2214220002 in dimensions, material composition, and hardness. While it isn’t stamped with the SINOTRUK logo (unless ordered through an authorized channel), it performs identically to the factory-installed component. Many distributors prefer this approach because it offers the same quality at a significantly lower cost.

What are the signs that a reverse gear block needs replacement?

Common symptoms include difficulty engaging reverse gear, unusual grinding or clunking sounds when shifting into reverse, and excessive free play in the gear lever during reverse selection. If a technician disassembles the gearbox and notices visible wear, chipping, or deformation on the block’s contact surfaces, replacement is necessary to prevent further transmission damage.

Can I order a small trial quantity before committing to a large order?

Absolutely. We encourage new partners to start with a sample order so you can verify fitment and quality firsthand. Once you’re satisfied, we’ll work with you on volume pricing for the Reverse Gear Block WG2214220002 that supports healthy distributor margins.

How should this reverse gear block be stored before installation?

Store the component in its original packaging in a dry, cool environment away from moisture and corrosive chemicals. Because the surface is precision-ground and heat-treated, exposure to humidity can cause surface oxidation over time. A light coating of anti-rust oil is applied at the factory, but prolonged storage in humid conditions should be avoided.

Does Mettlead supply other SINOTRUK HW gearbox components?

Yes — we carry a comprehensive range of HW series gearbox parts, including synchronizer rings, gear shafts, shift forks, bearings, seals, and housing components. You can browse our complete inventory on the SINOTRUK HOWO Gearbox Parts page.

Ready to Stock the Reverse Gear Block WG2214220002? Let’s Talk.

You’ve seen the specs, you understand the quality, and you know the margins are right. Now it’s time to take the next step. Whether you need a sample shipment or you’re ready to place a bulk order for your warehouse, our team is standing by to provide a fast, no-obligation quote.

Here’s what happens when you reach out:

1. You send us your required quantity and delivery destination.
2. We respond within 24 hours with unit pricing, lead time, and shipping options.
3. You approve, we produce (or ship from stock), and your reverse gear blocks are on the way.

It really is that straightforward. No complicated negotiations, no hidden fees — just reliable SINOTRUK HW gearbox parts delivered to your door at factory-direct prices.

Contact Us Now to request your wholesale quote for Reverse Gear Block WG2214220002 and start building a more profitable parts inventory today.