Product Introduction

• Structure: Integral precision forged high strength nickel chromium alloy steel; external helical tooth profilewith smooth bore for idler shaft mounting. Tooth surface: carburized, quenched, precision ground to HRC 58–62; black oxide anti corrosion finish.

• Performance: High hardness resists extreme torque/impact; helical teeth ensure quiet, smooth meshing with minimal vibration; integral forging prevents deformation under heavy load; precision grinding minimizes backlash and maximizes power transfer efficiency.

Core Function

1. Reverse Torque Transfer: Acts as an idler to reverse the direction of rotation, enabling reverse gear operation.

2. Power Path: Transmits torque from the reverse drive gear to the reverse driven gear, completing the reverse gear power flow.

3. Heavy Load Durability: Withstands frequent reverse shifts and extreme torque in heavy hauling, off road, and construction conditions.

Transmission Gear 12JS200T-1701083 Fast Gear – OEM-Quality Replacement for Fast Gearbox Systems

When your heavy-duty truck relies on a Fast 12JS200T transmission, every single gear inside that housing needs to perform flawlessly under extreme torque and constant load cycling. The Transmission Gear 12JS200T-1701083 Fast Gear is precisely engineered to restore shifting performance, reduce drivetrain noise, and extend gearbox service life — all while saving you significantly compared to original dealer pricing. Whether you’re maintaining a fleet of SHACMAN trucks or rebuilding Fast gearboxes for aftermarket resale, this transmission gear delivers the durability and dimensional accuracy your operation demands.

At Mettlead, we specialize in supplying genuine-spec Chinese truck parts to workshops, fleet operators, and distributors worldwide. As a factory-direct source based in China, we combine strict quality control with competitive pricing — so you get the right part, at the right price, delivered on time. Explore our full range of gearbox components or browse all Fast Gearbox parts available in stock.

Key Features and Benefits of Transmission Gear 12JS200T-1701083

This isn’t just another replacement gear — it’s a component built to match OEM tolerances while offering real-world advantages for cost-conscious procurement teams. Here’s why fleet managers and gearbox rebuilders consistently choose this Fast Gear transmission gear:

• Precision-Machined Tooth Profile: Each gear tooth is ground to exact involute specifications, ensuring smooth meshing, minimal backlash, and quiet operation even under heavy loads.
• High-Grade Alloy Steel Construction: Manufactured from carburized alloy steel with hardened tooth surfaces, this gear resists pitting, spalling, and premature wear — even in demanding long-haul applications.
• Direct OEM Dimensional Compatibility: Part number 12JS200T-1701083 guarantees drop-in fitment with no machining or modification required during gearbox assembly.
• Extended Service Life: Heat treatment processes ensure core toughness while maintaining surface hardness above HRC 58, translating to significantly longer intervals between overhauls.
• Factory-Direct Cost Savings: By sourcing directly from Mettlead, you bypass multiple middlemen — resulting in 20–40% savings compared to traditional import channels.
• Strict Quality Inspection: Every batch undergoes CMM dimensional verification, hardness testing, and visual inspection before shipment.

In other words, this transmission gear combines the precision your gearbox needs with the economics your purchasing department appreciates. It’s built to work hard, last long, and keep your trucks on the road.

Technical Specifications – Transmission Gear 12JS200T-1701083 Fast Gear

Accurate specifications matter when you’re sourcing gearbox components across borders. The table below provides the essential technical parameters for this Fast Gear transmission gear:

If you need additional dimensions, gear module data, or tooth count verification, our technical team is ready to assist. Simply contact us with your requirements.

Application Scenarios – Where Does This Fast Gear Transmission Gear Fit?

Understanding exactly where the Transmission Gear 12JS200T-1701083 Fast Gear belongs helps you order with confidence. This component is specifically designed for:

• Fast 12JS200T Gearbox Systems: This gear is a direct replacement within the Fast (法士特) 12-speed overdrive transmission, one of the most widely deployed heavy-duty gearboxes across Chinese truck platforms.
• Compatible Truck Brands: SHACMAN F3000/X3000, SINOTRUK HOWO A7/T7H, SITRAK C7H, FAW J6P, FOTON Auman GTL, and DONGFENG Tianlong — essentially any heavy-duty tractor or dump truck equipped with a Fast 12JS200T transmission.
• Gearbox Rebuild and Overhaul: Workshops performing full transmission rebuilds rely on this gear when inspections reveal worn tooth profiles, chipped surfaces, or excessive play.
• Fleet Preventive Maintenance: Forward-thinking fleet operators stock this transmission gear to minimize vehicle downtime during scheduled gearbox servicing.
• Aftermarket Distribution: Distributors and wholesalers across Africa, Southeast Asia, the Middle East, and Central Asia regularly source this part to supply local repair networks.

Wherever a Fast 12JS200T gearbox is working, this transmission gear keeps it shifting smoothly and reliably.

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

As a procurement manager, you may need more than just a quality part — you might need it packaged under your own brand or configured for specific regional markets. Mettlead supports flexible OEM and ODM requirements, including:

• White-Label Packaging: Receive the Transmission Gear 12JS200T-1701083 in neutral boxes or with your own brand labels, barcodes, and part number markings.
• Custom Packaging Design: We can produce branded packaging with your logo, color scheme, and language-specific information — ideal for distributors building a recognized parts brand.
• Bulk and Assortment Orders: Combine this gear with other Fast Gearbox parts in consolidated shipments to optimize freight costs.
• Quality Documentation: Inspection reports, material certificates, and hardness test records can be provided per batch on request.

Whether you’re building inventory for a single market or supplying a multi-country distribution network, we adapt to your operational needs without compromising on quality or lead time.

Customer Case Study – Transmission Gear 12JS200T-1701083 Fast Gear in Action

A regional truck parts distributor based in East Africa approached Mettlead with a recurring challenge: their local workshop clients were experiencing premature gear failures in Fast 12JS200T transmissions, largely because they had been sourcing low-grade aftermarket gears from unverified suppliers. The worn Transmission Gear 12JS200T-1701083 components were causing grinding during shifts, increased gearbox noise, and costly unplanned downtime for fleet operators.

After switching to Mettlead’s factory-direct Transmission Gear 12JS200T-1701083 Fast Gear, the distributor reported a measurable improvement. Gearbox rebuilds performed with our gears showed smoother engagement, quieter operation, and no premature failures within the first 200,000 km service interval. Additionally, the white-label packaging allowed them to strengthen their own brand presence in the local market.

Within six months, this distributor expanded their orders to include additional Fast gearbox components from our gearbox category, consolidating their supply chain through a single reliable source. That’s the kind of partnership we build at Mettlead — reliable parts, consistent quality, and a supplier who understands your business.

Frequently Asked Questions – Transmission Gear 12JS200T-1701083 Fast Gear

What transmissions does the 12JS200T-1701083 gear fit?

This transmission gear is specifically designed for the Fast (法士特) 12JS200T gearbox — a 12-speed overdrive manual transmission commonly found in SHACMAN, SINOTRUK HOWO, SITRAK, FAW, DONGFENG, and FOTON heavy-duty trucks. It is a direct dimensional replacement that requires no modification during installation.

What material is the Transmission Gear 12JS200T-1701083 made from?

The gear is manufactured from 20CrMnTi alloy steel, which undergoes carburizing, quenching, and tempering. This process produces a hard, wear-resistant tooth surface (HRC 58–62) while maintaining a tough, shock-absorbing core (HRC 33–38) — the same material specification used in OEM production.

How does this Fast Gear transmission gear compare to OEM quality?

Our Transmission Gear 12JS200T-1701083 is manufactured to OEM-equivalent dimensional and material standards. Each gear is precision-ground and undergoes CMM measurement verification, ensuring tooth profile accuracy, correct bore tolerances, and proper surface finish. It’s designed to be a seamless drop-in replacement.

What causes premature failure in transmission gears like the 12JS200T-1701083?

The most common failure modes include tooth surface pitting (from insufficient surface hardness), spalling (from subsurface fatigue), and chipping (from impact loads or improper shifting). Using a gear with correct heat treatment and material grade — like this one — significantly reduces these risks and extends service life.

Can I order the Transmission Gear 12JS200T-1701083 with custom or branded packaging?

Yes. Mettlead offers neutral packaging, white-label options, and fully custom-branded packaging. This is particularly popular with distributors who want to build their own aftermarket brand while sourcing factory-direct quality from China.

What is the typical lead time for this Fast Gear transmission gear?

Standard orders typically ship within 3–7 business days for in-stock items. Custom packaging or large-volume orders may require an additional 5–10 days. We recommend contacting us early to confirm current availability and production schedules.

Ready to Source Your Transmission Gear 12JS200T-1701083 Fast Gear?

Getting the right gear at the right price shouldn’t be complicated. Whether you need a single piece for an urgent rebuild or a bulk order for quarterly restocking, Mettlead makes the process straightforward. Here’s what you can expect when you work with us:

• Factory-direct pricing with no hidden middleman markups
• Verified quality with inspection reports available on request
• Flexible payment methods — secure and professionally handled
• Fast, reliable international shipping to your door or port
• A dedicated team that understands truck parts, not just logistics

Send us your inquiry today — include your required quantity, destination country, and any packaging preferences. Our team typically responds within 24 hours with pricing and lead time. Contact us now to get your quote started.

You’re also welcome to visit our facility in China for a firsthand look at our quality control processes and inventory capabilities.