Product Introduction

• Structure: An integral precision-forged component made from high-strength nickel-chromium alloy steel, featuring a helical external tooth profile and a precision-machined bore for mounting. The tooth surface is carburized, quenched, and precision-ground to a hardness of HRC 58–62, ensuring extreme wear resistance. The surface is finished with a corrosion-resistant silver oxide coating.

• Performance: The high-hardness helical teeth withstand extreme torque and impact forces, ensuring smooth, quiet meshing with minimal vibration. The integral forging and reinforced hub design prevent deformation under heavy loads, while the precision-machined bore ensures concentricity and precise alignment with the main shaft.

Core Function

1. Torque Transmission: Transfers torque from the main shaft to the counter shaft, enabling power delivery in 3rd/4th gear positions.

2. Gear Ratio Implementation: Works with the corresponding driven gear to achieve the 3rd/4th gear ratio, balancing torque and speed for efficient driving.

3. Heavy-Duty Durability: The high-strength alloy steel and heat treatment withstand frequent shifts and extreme torque in heavy hauling, ensuring long service life.

Transmission Drive Gear 12JS200T-1701051 Fast Gear – OEM-Quality Replacement for Fast Gearbox Systems

When your heavy-duty truck’s transmission starts losing efficiency, the drive gear is often the silent culprit. The Transmission Drive Gear 12JS200T-1701051 Fast Gear is precision-engineered to restore smooth power transfer in Fast gearbox systems, keeping your fleet on the road and your downtime to a minimum. Sourced directly from Mettlead’s factory in China, this transmission drive gear delivers OEM-level performance at a fraction of the dealer price — so you get reliability without breaking the budget.

Whether you’re a fleet maintenance manager or a parts procurement specialist, this Fast Gear transmission drive gear is built to handle the rigorous demands of long-haul logistics and heavy-load operations. Let’s walk through exactly why this component earns its place in your parts inventory.

Key Features and Benefits of the 12JS200T-1701051 Transmission Drive Gear

Choosing the right transmission drive gear isn’t just about fitment — it’s about long-term durability, noise reduction, and seamless torque delivery. Here’s what sets this Fast Gear drive gear apart:

• Precision-Forged Alloy Steel: Manufactured from high-strength alloy steel with carburizing and hardening treatment, ensuring exceptional wear resistance under continuous heavy loads.
• Exact OEM Dimensional Accuracy: Machined to match original Fast Gear specifications (part number 12JS200T-1701051), guaranteeing drop-in fitment without modification.
• Optimized Tooth Profile: The gear tooth geometry is designed to minimize meshing noise and vibration, resulting in smoother transmission operation and extended component life.
• Superior Surface Finish: Advanced grinding processes deliver a fine surface finish that reduces friction, lowers operating temperatures, and improves overall transmission efficiency.
• Strict Quality Control: Every single gear undergoes dimensional inspection, hardness testing, and surface defect examination before it leaves the production line.
• Cost-Effective Factory Direct Pricing: By eliminating middlemen, Mettlead passes genuine savings to procurement managers without compromising on material quality.

In other words, this isn’t a generic aftermarket part — it’s a purpose-built transmission drive gear that meets the exacting standards of Fast Gear gearbox systems.

Technical Specifications

Accurate specifications matter when you’re sourcing transmission components for a large fleet. Below you’ll find the detailed parameters for the 12JS200T-1701051 Fast Gear Transmission Drive Gear:

Application Scenarios – Where Does This Transmission Drive Gear Fit?

The 12JS200T-1701051 Transmission Drive Gear is specifically designed for the Fast 12JS200T series gearbox, one of the most widely deployed heavy-duty transmissions across Chinese commercial vehicles. Here’s where you’ll commonly find it at work:

• Compatible Gearbox: Fast 12JS200T transmission system (主动齿轮 position)
• Truck Brands: SINOTRUK HOWO, SHACMAN Delong, FAW Jiefang, FOTON Auman, and DONGFENG Tianlong models equipped with Fast Gear transmissions
• Typical Use Cases: Long-distance logistics trucks, heavy-duty dump trucks, construction vehicles, and bulk material transport fleets
• Operating Conditions: High-torque, high-speed transmission environments where consistent gear engagement is critical for safety and fuel efficiency

If your vehicles run a Fast 12-speed gearbox, chances are this drive gear is exactly the part your maintenance team has been searching for. You can explore more compatible Fast Gearbox Parts or browse our full Gearbox Transmission Parts catalog for additional components.

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

At Mettlead, we understand that different markets have different packaging and branding needs. That’s exactly why we offer flexible OEM and ODM services for the Transmission Drive Gear 12JS200T-1701051 and all our Fast Gear gearbox components:

• White-Label Packaging: We can supply this transmission drive gear under your own brand, with your logo, part number, and packaging design — perfect for distributors building their own aftermarket parts line.
• Custom Packaging Options: From individual poly bags to branded carton boxes, we adapt our packaging to your market requirements and shipment preferences.
• Flexible Order Quantities: Whether you need a trial order or container-load volumes, our production capacity scales to your business growth.
• Consistent Quality Across Batches: Our CNC machining centers and automated inspection ensure that every batch maintains the same dimensional accuracy and hardness specs — no surprises when your customers install the parts.

In short, you get factory-direct quality control paired with the branding freedom to compete in your local market.

Customer Case Study – Fast Gear Transmission Drive Gear for East African Fleet

Earlier this year, a fleet maintenance company based in Kenya reached out to Mettlead with an urgent requirement. They managed over 200 SINOTRUK HOWO trucks running Fast 12JS200T gearboxes on heavy-load routes between Mombasa and Nairobi. Frequent gearbox failures were eating into their profit margins, and their existing supplier couldn’t guarantee consistent quality on the Transmission Drive Gear 12JS200T-1701051.

After receiving our sample batch, their engineering team tested the Fast Gear drive gears across 15 trucks for 60 days. The results spoke for themselves: zero premature failures, noticeably quieter gear engagement, and a 30% reduction in gearbox-related downtime compared to their previous supplier’s parts.

Today, they order the 12JS200T-1701051 transmission drive gear from Mettlead on a quarterly basis — with white-label packaging under their own workshop brand. As their procurement manager put it: “We finally found a supplier who treats quality control as seriously as we do.”

Frequently Asked Questions About the 12JS200T-1701051 Transmission Drive Gear

What is the exact function of the 12JS200T-1701051 transmission drive gear in a Fast Gearbox?

This drive gear (主动齿轮) sits on the input shaft of the Fast 12JS200T gearbox and is responsible for transmitting engine torque to the driven gear. It’s a core power-transfer component — if it wears out or develops surface pitting, you’ll experience gear slippage, increased noise, and reduced transmission efficiency.

How do I verify that this transmission drive gear fits my specific vehicle?

The most reliable way is to confirm your gearbox model number. If your truck uses a Fast 12JS200T series transmission, then part number 12JS200T-1701051 is the correct drive gear. You can also cross-reference the number stamped on your existing gear during disassembly. If you’re unsure, our technical team can help you confirm compatibility — just contact us with your gearbox nameplate photo.

What material is this Fast Gear transmission drive gear made from?

It’s forged from high-strength alloy steel and undergoes carburizing, quenching, and tempering heat treatment. This process creates a hard, wear-resistant tooth surface (HRC 58–62) while maintaining a tough, shock-absorbing core (HRC 33–38) — the ideal combination for high-torque gearbox applications.

How long can I expect this transmission drive gear to last?

Under normal operating conditions with proper gearbox lubrication and regular oil changes, this drive gear is designed to match OEM service life. Most fleets report reliable performance for 300,000–500,000 km depending on load intensity, driving conditions, and maintenance practices.

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

Absolutely. We encourage new customers to start with a sample or small trial order so your engineering team can inspect the 12JS200T-1701051 transmission drive gear quality firsthand. Once you’re satisfied, we can scale up to whatever volume your fleet requires.

Does surface pitting on my old drive gear indicate a quality issue or a lubrication problem?

It can be either — or both. Surface pitting on transmission gears typically results from metal fatigue, contaminated oil, or insufficient lubrication. When you replace the drive gear, we recommend also flushing the gearbox and refilling with the manufacturer-specified gear oil to maximize the new component’s service life.

Ready to Source Your Transmission Drive Gear 12JS200T-1701051?

Every hour of gearbox downtime costs your business money. Whether you need a single replacement or want to stock the 12JS200T-1701051 Fast Gear Transmission Drive Gear for your entire fleet, Mettlead delivers factory-direct quality with fast, reliable shipping worldwide.

Here’s what you can expect when you work with us:

• Competitive factory-direct pricing — no middlemen markups
• Full technical support for part verification and gearbox compatibility
• Flexible payment methods with secure transactions
• Fast production and reliable international logistics
• White-label and custom packaging at no extra hassle

Get your quote today. Send us your required quantity, destination country, and any packaging preferences — our team typically responds within 12 hours. Contact Us Now to start your order or ask any technical questions about the 12JS200T-1701051 transmission drive gear.