China FAST C6J45TB Gearbox Parts - Shift Fork Shaft/Rear Cover Housing/Other Parts Supplier, Factory

  • Exclusively fits FAST C6J45TB 6-speed manual gearbox
  • Covers shift fork shaft, rear cover housing and other accessory parts
  • OEM-compatible, precision-machined and factory-inspected
  • Made of high-strength steel, wear-resistant rubber and durable engineering plastics
  • Suitable for buses, trucks, tractors and special vehicles’ heavy-duty operations

Product Description

⚙️ Application & Compatibility
FAST Gearbox Model
Model C6J45TB
Brand Fast
Number of Gears 6 forward gears + 1 reverse gear
Shifting Mode Manual Transmission
Maximum Input Torque 450 N.m
Adapted Vehicles Suitable for harsh working conditions and heavy-duty operations, widely applied in buses, trucks, tractors and special vehicles
📝 Product Description
These parts are engineered exclusively for the FAST C6J45TB 6-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 structural parts, wear-resistant rubber for seals, and durable engineering plastics for auxiliary components—all parts undergo professional precision processing. Key processes include forging, heat treatment, CNC machining and airtightness testing, meeting the gearbox’s 450 N.m maximum input torque requirement. Strict dimensional accuracy and performance inspections ensure full compatibility with original equipment.

Shift Fork Shaft Assembly

Gear shift forks, shift fork shafts, guide blocks and elastic pins—core components for accurate gear selection and smooth shifting.

Rear Cover Housing Assembly

Rear cover housing, output flange plate, oil seal and odometer sensor—forming the gearbox’s rear-end protection and power output support system.

Direct-fit design allows hassle-free installation without modification, fully interchangeable with original parts. Ideal for routine maintenance, emergency repairs and fleet bulk procurement.
🛠️ Detail Parts List: Shift Fork Shaft Assembly
Shift Fork Shaft Assembly
No. Parts No. Part Name Qty.
115642069Directional Support Pin2
2Q72318Sealing Washer2
3156220585th/6th Gear Shift Fork1
415642085-2Shift Fork Block2
5Q5270628Helical Elastic Pin8
6156220573rd/4th Gear Shift Fork1
7156220561st/2nd Gear Shift Fork1
815622055Reverse Gear Shift Fork1
915622063-2Reverse Gear Shift Fork Shaft1
1015622064-21st/2nd Gear Shift Fork Shaft1
1115622065-23rd/4th Gear Shift Fork Shaft1
1215622066-25th/6th Gear Shift Fork Shaft1
1315642051Reverse Gear Guide Block2
14156420521st/2nd Gear Guide Block2
1515642054Directional Guide Block1
🛡️ Detail Parts List: Rear Cover Housing Assembly
Rear Cover Housing Assembly
No. Parts No. Part Name Qty.
115621170-1Flange Nut1
26J30T-1701157Flat Washer1
315621171O-Ring1
415621183Output Flange Plate1
515621160Dust Cover1
615621172-1Output Oil Seal1
715621157Odometer Rotor1
8NUP2209ENCylindrical Roller Bearing1
9Q43085Elastic Retaining Ring for Hole1
10C03054-16Electronic Odometer Sensor Assembly1
11Q617B18Hexagon Head Pipe Plug1
12Q72318Sealing Washer1
139_5G100BGB-T308Steel Ball4
145J30T-1702018BCompression Spring4
155J30T-1701608BSelf-Locking Pipe Plug4
1615621022Reverse Idler Gear Window Cover1
17Q1420820Hexagon Head Bolt and Spring Washer Assembly6
1815621016-YRear Cover Housing1
🚀 Product Advantages

💎 C6J45TB Exact Fit

100% matched to original dimensions, no fitment issues for heavy-duty repairs.

💪 Heavy-Duty Durability

Withstands 450 N.m torque and harsh working conditions, extending service life.

⚙️ Stable Power Transmission

Precision-machined shift fork and guide block ensure stable gear changes.

🔒 Reliable Sealing

High-quality oil seal and O-ring prevent oil leakage and dust intrusion.

📦 Payment & Shipping Terms
MOQ 1 piece
Packaging Customizable wooden crate or standard export carton
Delivery Time 3-20 working days (Express via DHL/FedEx; Sea freight for bulk orders)
Payment Methods L/C, T/T, Western Union
Support 24-hour technical support and tracking number provided within 24 hours
Frequently Asked Questions
Are these parts compatible with the original FAST C6J45TB gearbox?
Yes, these parts are engineered to meet 100% original dimensions and specifications for a direct-fit replacement.
What is the maximum torque these parts can handle?
The parts are designed and tested to withstand a maximum input torque of 450 N.m, ideal for heavy-duty truck operations.
What materials are used for the structural components?
Structural parts are made from high-strength forged steel, while seals use wear-resistant rubber to ensure longevity under harsh conditions.
How long does shipping take?
Delivery typically ranges from 3 to 20 working days depending on the shipping method (express or sea freight) and order volume.
Do you support small orders?
Yes, our Minimum Order Quantity (MOQ) is just 1 piece, making it convenient for both emergency repairs and small-scale maintenance.
How is the quality of the seals and O-rings?
We use professional-grade airtightness testing and premium rubber materials to prevent oil leakage and ensure reliable protection against dust.

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