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| Model | 8JS85C/85E |
| Brand | Fast |
| Number of Gears | 8 forward gears + 2 reverse gears |
| Shifting Mode | Manual Transmission |
| Maximum Input Torque | 850 N.m |
| Adapted Vehicles | Buses, coaches, trucks, tractors, trailers and special vehicles |
These parts are engineered exclusively for the FAST 8JS85C 8-speed manual gearbox, tailored to heavy-duty scenarios like long-haul transportation, logistics and special vehicle operations.
Crafted from premium materials—high-strength steel for gears and shafts, wear-resistant rubber for seals, and durable engineering plastics for structural components—all parts undergo professional precision processing. Key processes include forging, heat treatment, CNC machining and airtightness testing, meeting the gearbox’s 850 N.m maximum input torque requirement.
Direct-fit design allows hassle-free installation without modification, fully interchangeable with original parts.
1. Control Device Assembly
| No. | Parts No. | Part Name | Qty. |
|---|---|---|---|
| 1 | J82-1703033-1 | Bowl-Shaped Plug | 1 |
| 4 | JS125T-1703025-6 | Gear Selection Shaft Assembly | 1 |
| 7 | 6J80T-1703035 | Oil Seal | 1 |
| 10 | J82-1703029-4 | Limit Spring | 2 |
| 17 | JS125T-1703017-7 | Lateral Shift Lever | 1 |
2. Air Filter Regulator Assembly
| No. | Parts No. | Part Name | Qty. |
|---|---|---|---|
| 1 | A-4740 | Air Filter Regulator | 1 |
| 2 | 12845 | 90° Elbow Pipe Fitting | 1 |
| 5 | 55513 | Air Pipe Assembly | 1 |
3. Auxiliary Case Drive Gear Assembly
| No. | Parts No. | Part Name | Qty. |
|---|---|---|---|
| 3 | 6015N | Deep Groove Ball Bearing | 1 |
| 5 | JS85T-1707071 | Bearing Positioning Plate | 1 |
| 8 | JS85E-1707030 | Auxiliary Case Drive Gear | 1 |
