12JSDX240TA-1707030 Auxiliary Box Drive Gear — Genuine OEM Replacement for Fast Gearbox Brand new, factory-original replacement gear component. Purpose-built for the auxiliary section of heavy-duty truck transmissions (Fast / FastGear series). Part reference 12JSDX240TA-1707030, precision die-forged from premium alloy steel with controlled heat treatment to withstand severe shock loads, fatigue stress, and sustained heavy-duty abrasion. Machined to strict OEM tooth geometry for ultra-low friction, quiet operation, and prevention of gear jump-out under peak torque delivery. Compatible across SINOTRUK, SHACMAN, FAW, FOTON and other heavy commercial vehicle brands. Direct OEM bolt-in design with internal spline coupling for perfect alignment — slashing installation labor and fleet off-road time. In warehouse stock, ready for fast global dispatch. |
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| Item | Details |
|---|---|
| Component Name | Auxiliary Box Drive Gear |
| OEM Part Number | 12JSDX240TA-1707030 |
| Gearbox Series | Fast 12JSDX240TA Family |
| Construction Material | Premium Forged Alloy Steel |
| Vehicle Fitment | Heavy-Duty Trucks (SINOTRUK, SHACMAN, FAW, FOTON, and more) |
| Product Type | Commercial Vehicle Driveline Spare Parts |
| Fitment Method | Direct Swap / Internal Spline Coupling |
Need a tailored setup? Let us know your specs.
Superior Alloy Steel Construction Die-forged from top-grade alloy material with precision-controlled heat treatment to endure extreme impacts, cyclic fatigue, and severe-duty abrasion. | Exact Tooth Geometry Machined to factory gear specifications for reduced friction, whisper-quiet meshing, and reliable anti-slip performance during peak torque delivery. |
Plug-and-Play OEM Compatibility Perfect alignment with Fast 12JSDX240TA auxiliary box housings, cutting installation hours and maximizing fleet uptime. | Rugged Dependability Engineered to withstand punishing load conditions in long-distance haulage, surface mining, and heavy civil construction logistics. |
Economical Service Solution Prolongs the working life of the complete gearbox assembly, significantly reducing overall repair frequency and workshop overhead. |
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The 12JSDX240TA-1707030 Auxiliary Box Drive Gear is extensively deployed across commercial vehicle service networks and spare parts distribution channels:
Heavy Truck Fleet Servicing Critical swap-in part for independent repair workshops and fleet maintenance depots resolving Fast gearbox range-shift malfunctions. |
Intercity Freight & Line Haul Ensures uninterrupted auxiliary box power flow for heavy cargo rigs covering extended highway distances. |
Mining & Heavy Construction Designed to backstop tipper trucks and off-road haulers operating under extreme payload and rugged ground conditions. |
Parts Sourcing & International Export Fast-moving inventory item for global commercial vehicle component importers and wholesale distributors. |
Founded in 2005, Shandong Chengda Auto Sale Co., Ltd. operates as a certified trailer manufacturer and heavy-duty truck parts supplier. Backed by precision production lines and automated systems, a robust engineering R&D division, and an experienced international sales force, we have cultivated lasting business partnerships with leading global enterprises including SINOTRUK, SHACMAN, FAW, DFAC, XUGONG Group, LIUGONG Group, SEM Group and more. Our well-established after-sales framework enables us to address the diverse demands of customers worldwide. |
1. About our company? Headquartered in Shandong, China, operating since 2017. Export markets: Africa (60%), Southeast Asia (20%), South Asia (10%), South America (5%), Oceania (3%), Middle East (2%). Team size: 101–200 staff. | 2. Quality assurance process? Pre-mass-production prototype sign-off; mandatory end-of-line inspection prior to every dispatch. |
3. Product range available? Dump Trucks, Tractor Heads, Semi-Trailers (Lowbed, Flatbed, Fuel Tanker, Bulk Cement), Low Bed Trailers, Trailer Spare Parts, Fuel Tanker Semi-Trailers, Heavy Truck Transmission Parts & Gearbox Components. | 4. Why partner with us? Founded in 2005. Ex-factory pricing, bespoke product solutions, extensive inventory range, advanced manufacturing technology, dedicated international sales team. |
5. Available services? Shipping terms: FOB, CFR, CIF, EXW. Payment methods: T/T, L/C, MoneyGram, Credit Card, PayPal, Western Union, Cash. Languages spoken: English, Chinese, Spanish, Portuguese, Arabic, French. |
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Bare or anti-corrosion protective coating/waxing applied before dispatch. Shipped via bulk carrier, Ro-Ro vessel, or flat rack container depending on order volume.
Buyers from 80+ nations have toured our production base — spanning East Africa, West Africa, South America, Asia, and beyond. You are warmly invited to inspect our facilities in person.
ISO 9001 certified and compliant with international commercial vehicle spare parts quality management standards.
Shandong Chengda Auto Sales Co.,Ltd.
Phone,WhatsApp：+86 18853125881
Email：dingzan@scdtrailer.com
Contact Address：
Room 68208‑68209, 1st Street, 4th Floor, Gate 97, District 5, Yiwu International Trade City, Yiwu City, Zhejiang Province, P.R.China
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