Product Introduction

• Structure: An integral precision-forged component made from high-strength nickel-chromium alloy steel, with an external helical tooth profile and a precision-machined bore for mounting on the counter shaft. The tooth surface is carburized, quenched, and precision-ground to HRC 58–62 for extreme wear resistance, with a black oxide finish for corrosion protection.

• 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 counter shaft.

Core Function

1. Torque Reception: Receives torque from the corresponding drive gear and transfers it to the counter shaft, enabling power transmission in the target gear position.

2. Gear Ratio Implementation: Works with the drive 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 Driven Gear 12JS200T-1701112 Fast Gear – Premium Gearbox Component for Heavy-Duty Trucks

When your fleet depends on reliable power delivery, every single gear inside the transmission matters. The Transmission Driven Gear 12JS200T-1701112 Fast Gear is engineered to withstand the punishing demands of heavy-duty commercial vehicles, ensuring smooth torque transfer and extended service life. Sourced directly from Mettlead’s factory in China, this driven gear delivers OEM-grade performance at a competitive factory-direct price — so you can keep your trucks rolling without overspending on replacement parts.

Whether you are maintaining a long-haul fleet or supplying aftermarket parts across Africa, the Middle East, or Southeast Asia, this Fast Gearbox driven gear is built to match original specifications and drop right into your transmission assembly with zero hassle.

Key Features and Benefits of the 12JS200T-1701112 Driven Gear

Choosing the right transmission driven gear is not just about fit — it is about durability, noise reduction, and total cost of ownership. Here is what sets this component apart:

• Precision-Forged Tooth Profile – Each gear tooth is machined to tight tolerances, promoting even load distribution and minimizing premature wear across the gear face.
• High-Grade Alloy Steel Construction – Manufactured from carburized alloy steel that has been heat-treated for exceptional surface hardness while maintaining a tough, shock-resistant core.
• OEM-Matched Dimensions – Engineered to perfectly replace the original Fast Gear part number 12JS200T-1701112, which means no modifications are needed during installation.
• Reduced NVH Performance – The ground finish on the gear teeth helps lower noise, vibration, and harshness inside the transmission housing, contributing to a quieter cab environment for drivers.
• Extended Service Intervals – Thanks to superior metallurgy and surface treatment, this driven gear resists pitting and spalling, translating into longer replacement cycles and lower maintenance costs.
• Strict Quality Control – Every batch undergoes dimensional inspection, hardness testing, and gear mesh verification before shipment — giving you confidence that what arrives matches what was promised.

In short, this Transmission Driven Gear 12JS200T-1701112 is designed to work as hard as your trucks do, day after day, load after load.

Technical Specifications

Below you will find the detailed parameters for the Fast Gear Driven Gear 12JS200T-1701112. These specs help procurement managers verify fitment and compatibility quickly:

Application Scenarios – Where Does This Driven Gear Fit?

The Transmission Driven Gear 12JS200T-1701112 is specifically designed for the Fast 12JS200T series gearbox, one of the most widely deployed heavy-duty transmissions across Chinese commercial vehicle platforms. You will commonly find this gearbox installed in:

• SINOTRUK HOWO heavy-duty tractor units and dump trucks
• SHACMAN F3000 / X3000 series long-haul and construction vehicles
• FAW J6 / J7 premium logistics tractors
• DONGFENG Kinland heavy cargo and tipper trucks
• FOTON Auman GTL series highway tractors

If your vehicles rely on a Fast 12-speed transmission, this driven gear is a direct replacement part that keeps the drivetrain operating within factory parameters. It is particularly popular among fleet operators in Africa, Southeast Asia, Central Asia, and the Middle East, where these truck brands dominate the commercial transport sector.

Looking for more Fast Gearbox components? Browse our complete Fast Gearbox Parts catalog to find matching synchronizers, shafts, bearings, and other transmission internals.

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

At Mettlead, we understand that different markets have different branding needs. That is why we offer flexible packaging and labeling options for the 12JS200T-1701112 Transmission Driven Gear:

• White-Label Packaging – Ship under your own brand name with custom-printed boxes, labels, and documentation. This allows distributors and wholesalers to build local brand equity while sourcing factory-direct.
• Neutral Packaging – Plain protective packaging without branding, ideal for bulk orders destined for repackaging at destination.
• Custom Specifications – Need a slight material or finish variation for a specific regional application? Our engineering team can discuss feasibility for volume orders.

Combined with our strict quality control process — which includes CMM dimensional checks, metallurgical analysis, and functional gear mesh testing — you can trust that every carton leaving our warehouse meets your standards, regardless of whose name is on the box.

For a deeper look at our full range of gearbox solutions across Chinese truck brands, visit our Gearbox Parts collection.

Customer Case Study – Bulk Transmission Gear Order for East African Fleet Operator

Earlier this year, a procurement manager at a major transport company operating over 200 SINOTRUK HOWO trucks across Kenya and Tanzania reached out to Mettlead. Their fleet was experiencing increased gearbox downtime, and they needed a reliable bulk supply of Transmission Driven Gear 12JS200T-1701112 Fast Gear components along with several complementary gearbox internals.

After receiving samples for hardness and dimensional verification, the customer placed an initial order of 500 pieces. The results spoke for themselves: transmission rebuild intervals increased by approximately 20%, and the procurement team reported zero fitment rejections across the entire batch. Within three months, they expanded their order scope to include additional Fast Gearbox driven gears, counter shafts, and synchronizer assemblies — all sourced through Mettlead at factory-direct pricing.

This case reinforced a simple truth: when you combine OEM-spec quality with transparent pricing and fast logistics, long-term procurement partnerships follow naturally.

Frequently Asked Questions – Transmission Driven Gear 12JS200T-1701112

What transmission models does the 12JS200T-1701112 Driven Gear fit?

This driven gear is designed specifically for the Fast 12JS200T series transmission. It is a direct replacement for the original factory-installed component. Always confirm the full part number 12JS200T-1701112 against your gearbox nameplate or maintenance manual before ordering to ensure exact compatibility.

What material is this Transmission Driven Gear made from?

It is manufactured from carburized alloy steel, typically 20CrMnTi or an equivalent grade. After carburizing, quenching, and tempering, the gear achieves surface hardness of HRC 58–63, which resists wear, while the softer core (HRC 30–45) absorbs shock and prevents brittle fracture under heavy load.

How can I tell if my driven gear needs replacement?

Common symptoms of a worn or damaged 12JS200T-1701112 driven gear include excessive gear whine or grinding noise during specific speed ranges, difficulty engaging or staying in gear, metal particles found in the transmission oil during service, and visible pitting or chipping on the gear tooth surfaces during inspection.

Is this gear an exact OEM replacement or an aftermarket alternative?

This is an aftermarket component manufactured to OEM-equivalent specifications. Dimensions, material composition, heat treatment, and gear tooth geometry all match the original Fast Gear part — ensuring drop-in fitment without requiring any modification to adjacent transmission components.

What is the typical lead time for bulk orders?

For standard stock items, lead time is generally 3–7 days. For large volume orders or custom packaging requests, production and delivery typically take 15–25 days depending on quantity. Our team will confirm exact timelines once we receive your order details.

Can I order just one piece as a sample before committing to bulk?

Absolutely. We encourage sample testing, especially for new customers. You can request one or a small quantity to verify dimensions, material quality, and fitment in your workshop before scaling up your order.

Ready to Source Your Transmission Driven Gear 12JS200T-1701112?

Stop losing money to gearbox downtime. Whether you need a single sample or a container-load of Fast Gear Transmission Driven Gears, Mettlead delivers factory-direct pricing, verified quality, and fast turnaround — straight from China to your warehouse door.

Send us your part number, quantity, and destination today. Our team typically responds within 12 hours with pricing, lead time, and shipping options tailored to your needs.

Contact us now to request a quote — and let us keep your fleet in gear.