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| Model | 12JSDX240T |
| Brand | Fast |
| Number of Gears | 12 forward gears + 2 reverse gears |
| Shifting Mode | Manual Transmission |
| Maximum Input Torque | 2400 N.m |
| Adapted Vehicles | Heavy-duty trucks, construction machinery |
These parts are engineered exclusively for the FAST 12JSDX240T 12-speed aluminum alloy gearbox, tailored to heavy-duty scenarios like long-haul transportation, mining, and construction.
Crafted from premium materials—high-strength steel for structural parts, wear-resistant rubber for seals, and durable engineering plastics for regulators—all parts undergo professional precision processing. Key processes include forging, heat treatment, CNC machining, and airtightness testing, meeting the gearbox's 2400N.m maximum input torque requirement. Strict dimensional accuracy and performance inspections ensure full compatibility with original equipment.
Air Filter Regulator Assembly Parts: Air filter regulators, air pipe assemblies, and pipe fittings—filtering air impurities and regulating pneumatic system pressure.
Top Cover and Rear Cover Related Parts: Gaskets, locating pins, lifting bent plates, and bearings—ensuring sealing performance and structural stability of the gearbox covers.
Transmission Case Related Parts: Baffle plates, cylindrical roller bearings, oil pump components, and retaining rings—supporting the gearbox's internal lubrication and structural reinforcement.
1. Air Filter Regulator Assembly
| No. | Parts No. | Part Name | Qty. |
|---|---|---|---|
| 1 | Q1420660 | Hexagon Head Bolt and Spring Washer Assembly | 2 |
| 2 | 66604 | Air Pipe Assembly | 1 |
| 3 | A-C03002-11 | Air Filter Regulator and Pipe Plug Assembly | 1 |
| 4 | C01052 | 45° Pipe Fitting | 1 |
2. Other Related Parts for Top Cover and Rear Cover
| No. | Parts No. | Part Name | Qty. |
|---|---|---|---|
| 1 | 12JS160T-1702016 | Top Cover Gasket | 1 |
| 2 | Q5211026 | Cylinder Pin | 1 |
| 3 | 6JS160T-1709588-1 | O-Ring | 3 |
| 8 | 20815 | Lifting Bent Plate | 2 |
3. Other Related Parts for Transmission Case
| No. | Parts No. | Part Name | Qty. |
|---|---|---|---|
| 2 | 12JSDX240T-1701068 | Countershaft Baffle Plate Assembly | 2 |
| 4 | NUP2211ENM | Cylindrical Roller Bearing | 2 |
| 10 | 12JSD200T-1708021-1 | Oil Pump Drive Gear | 1 |
| 21 | 12JSDX240T-1707030 | Auxiliary Case Drive Gear | 1 |
