Product Introduction

• Structure: An integral precision-forged gear made from high-strength alloy steel, with a helical external tooth profile and an internal spline bore. The tooth surface is carburized and hardened, then precision ground for ultra-smooth meshing. The gear features a reinforced hub design for increased torque capacity, and a polished surface finish to reduce friction and wear.

• Performance: The high-hardness tooth surface (HRC58-62) withstands extreme torque and impact forces, while the helical tooth design ensures smooth, quiet power transmission with reduced vibration. The integral forging and reinforced hub provide exceptional torsion resistance, preventing deformation or fracture under heavy load. The precision-ground teeth minimize backlash and ensure efficient power transfer.

Core Function

1. Primary Torque Transmission: Transmits rotational torque from the engine input shaft to the transmission countershaft, initiating the power flow through the gearbox.

2. Smooth Power Transfer: The helical tooth profile ensures gradual meshing with the countershaft gear, reducing noise and vibration for a smoother driving experience.

3. Heavy-Duty Load Handling: The high-strength alloy steel and reinforced hub design safely handle the extreme torque of heavy-duty operation, ensuring reliable performance under full load.

Gearbox Drive Gear 12JS200T-1707030 DONGFENG – Premium Transmission Component for Heavy-Duty Trucks

When your DONGFENG heavy-duty truck demands reliable power transfer through its transmission system, the Gearbox Drive Gear 12JS200T-1707030 stands as the backbone of smooth gear engagement. Engineered to meet OEM specifications, this drive gear delivers consistent torque transmission, reduced noise, and extended service life — even under the most demanding operating conditions. Whether you’re managing a fleet or sourcing parts for your workshop, this precision-machined component keeps your vehicles moving without costly downtime.

At Mettlead, we supply this genuine-quality gearbox drive gear directly from our factory in China, which means you get factory-direct pricing without sacrificing quality. As a trusted global supplier of Chinese brand truck parts — including SINOTRUK, SITRAK, HOWO, SHACMAN, FAW, WEICHAI, DONGFENG, and FOTON — we understand that procurement managers need accuracy, reliability, and speed. That’s exactly what we deliver.

Key Features and Benefits of the Gearbox Drive Gear 12JS200T-1707030

This drive gear isn’t just another replacement part — it’s a carefully manufactured transmission component designed to restore your gearbox to peak performance. Here’s what sets it apart:

• OEM-Grade Precision: Manufactured to match the original DONGFENG specifications for part number 12JS200T-1707030, ensuring seamless fitment and optimal gear mesh.
• Superior Material Composition: Crafted from high-strength alloy steel with advanced heat treatment, this gear resists wear, pitting, and fatigue even under continuous heavy loads.
• Noise Reduction: Precision-ground tooth profiles minimize vibration and operational noise, contributing to a smoother driving experience.
• Extended Service Life: Thanks to strict quality control during production, this drive gear outlasts generic aftermarket alternatives, reducing your long-term replacement costs.
• Direct Torque Transfer: The optimized tooth geometry ensures efficient power delivery from the input shaft to the driven components, maintaining transmission efficiency.
• Strict Quality Control: Every gear undergoes dimensional inspection, hardness testing, and surface finish verification before leaving our facility.

In addition, Mettlead offers white-label and custom packaging options, so distributors and resellers can brand these parts for their own markets. This flexibility makes us an ideal long-term supply partner for businesses across Africa, the Middle East, Southeast Asia, and South America.

Technical Specifications – Gearbox Drive Gear 12JS200T-1707030 DONGFENG

Accurate specifications matter when you’re sourcing transmission components. Below you’ll find the detailed parameters for this gearbox drive gear, so you can verify compatibility before placing your order:

Application Scenario – Where Does the 12JS200T-1707030 Drive Gear Fit?

Understanding exactly where this component belongs in your drivetrain is essential for correct procurement. The Gearbox Drive Gear 12JS200T-1707030 is specifically designed for DONGFENG heavy-duty trucks equipped with the FAST 12JS200T series transmission. This 12-speed gearbox is widely used across DONGFENG’s lineup of logistics trucks, dump trucks, and tractor units.

As the main drive gear within the transmission assembly, this component sits on the input shaft and engages directly with the countershaft gear cluster. It is responsible for transferring engine torque from the clutch assembly into the gear train — making it one of the most critical parts inside the gearbox housing.

Compatible vehicle and transmission applications include:

• DONGFENG Tianlong (Kinland) heavy-duty tractor trucks
• DONGFENG Tianjin medium-heavy logistics trucks
• DONGFENG dump trucks and construction vehicles with FAST 12-speed gearboxes
• Any vehicle platform equipped with the FAST 12JS200T transmission assembly

If you’re sourcing other FAST gearbox components, browse our full range of transmission parts in our FAST Gearbox Parts category for matching synchro rings, output shafts, bearings, and gear sets.

OEM/ODM Capability – Tailored Solutions for Your Market

Mettlead doesn’t just sell parts — we partner with distributors, wholesalers, and fleet operators worldwide to deliver customized supply solutions. Our OEM/ODM capabilities for the Gearbox Drive Gear 12JS200T-1707030 and related transmission components include:

• White-Label Packaging: We’ll package this drive gear under your own brand identity, complete with custom labels, part number markings, and branded boxes.
• Custom Packaging Design: Need specific box dimensions, multilingual labels, or barcoding for your warehouse system? We accommodate all packaging requirements.
• Bulk Order Flexibility: Whether you need 50 pieces or 5,000, our production capacity scales to match your demand cycles.
• Technical Support: Our engineering team provides fitment guidance, technical drawings, and cross-reference support to help you confirm compatibility.
• Factory Visits Welcome: We invite potential partners to visit our facilities in China to inspect production lines, quality processes, and inventory firsthand.

For a comprehensive look at our full gearbox parts inventory — including components for SINOTRUK, SHACMAN, and other Chinese truck brands — visit our complete gearbox parts collection.

Customer Case Study – Gearbox Drive Gear 12JS200T-1707030 for an African Fleet Operator

In early 2024, a fleet management company operating over 120 DONGFENG Tianlong tractor trucks in East Africa approached Mettlead with an urgent need. Their trucks were experiencing premature transmission wear, and they required a reliable supply of Gearbox Drive Gear 12JS200T-1707030 components to overhaul multiple gearboxes simultaneously.

After consulting with our technical team, the customer confirmed cross-reference compatibility and placed an initial order of 80 units. We shipped the entire batch within 10 business days via sea freight, with each gear individually packaged in anti-rust protective wrapping.

The results spoke for themselves: after installation, the fleet reported smoother gear shifts, reduced transmission noise, and zero premature failures across a 6-month follow-up period. Consequently, this customer now orders quarterly and has expanded their procurement to include countershaft gears, synchro assemblies, and output shaft components from our FAST gearbox range.

“The quality of the 12JS200T-1707030 drive gear matched our original DONGFENG parts, but the cost savings were significant. Mettlead has become our primary supplier for all FAST transmission components.” — Fleet Procurement Manager, East Africa

Frequently Asked Questions – Gearbox Drive Gear 12JS200T-1707030 DONGFENG

What is the function of the Gearbox Drive Gear 12JS200T-1707030 inside the transmission?

The drive gear 12JS200T-1707030 serves as the primary input gear within the FAST 12JS200T gearbox. It meshes with the countershaft gear cluster to transmit engine torque through the transmission. Without a properly functioning drive gear, you’ll experience gear slippage, excessive noise, and ultimately transmission failure.

How do I verify that part number 12JS200T-1707030 fits my DONGFENG truck?

First, confirm that your vehicle uses a FAST 12JS200T series transmission. You can typically find this information on the gearbox nameplate or in your vehicle’s maintenance manual. If you’re unsure, send us your VIN or gearbox serial number, and our technical team will verify compatibility for you.

What material is this gearbox drive gear made from, and how is it hardened?

This gear is manufactured from high-strength alloy steel and undergoes a carburizing, quenching, and tempering heat treatment process. As a result, the tooth surface achieves a hardness of HRC 58–62 for wear resistance, while the core maintains HRC 33–38 for impact toughness. This combination prevents both surface pitting and tooth fracture under heavy loads.

What are common signs that the 12JS200T-1707030 drive gear needs replacement?

Watch for these warning signs during vehicle operation: unusual whining or grinding noise from the gearbox, difficulty engaging gears, vibration felt through the shifter, metal particles in the transmission oil, or visible tooth wear or chipping during inspection. If you notice any of these symptoms, prompt replacement prevents cascading damage to other gearbox components.

Can I order the Gearbox Drive Gear 12JS200T-1707030 with custom branding?

Absolutely. Mettlead provides white-label and custom packaging services for all our transmission components. You can specify your own brand name, part number, packaging design, and labeling language. This is ideal for distributors who want to build their own brand identity in local markets.

What is the minimum order quantity, and how quickly can you ship?

We accommodate both small and bulk orders. For standard stock items like the 12JS200T-1707030 drive gear, we typically ship within 3–7 business days. Larger bulk orders may require 10–15 days for quality inspection and packaging. We offer flexible shipping options including express courier, air freight, and sea freight depending on your timeline and budget.

Ready to Source Your Gearbox Drive Gear 12JS200T-1707030?

Stop losing money to unreliable suppliers and inconsistent quality. Mettlead delivers factory-direct pricing, verified OEM-grade components, and the responsive service that procurement professionals depend on. Whether you need a single piece for an urgent repair or a recurring bulk supply for your distribution network, we’re ready to support your business.

Take the next step today:

• Request a competitive quote for the Gearbox Drive Gear 12JS200T-1707030 DONGFENG
• Ask our team for technical cross-reference support
• Inquire about custom packaging and white-label options
• Schedule a factory visit to see our quality processes firsthand

Contact us now to get your personalized quote and lead time confirmation. Our sales team typically responds within 24 hours with pricing, stock availability, and shipping options tailored to your location.