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Mr. Perry Wu International Sales Director
FAST 12JSDX240T Gearbox Parts - Input/Reverse Idler Shaft/Top Cover Assembly
|
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 |
Suitable for harsh working conditions and heavy-duty operations, applied to heavy-duty trucks, construction machinery and other equipment requiring high-intensity work |
Product Description
These parts are engineered exclusively for the FAST 12JSDX240T 12-speed manual gearbox, tailored to heavy-duty scenarios like long-haul transportation, mining, and construction.
Crafted from premium materials—high-strength alloy steel for shafts and gears, wear-resistant rubber for seals, and durable engineering plastics for control components—all parts undergo professional precision processing. Key processes include forging, heat treatment, CNC machining, and assembly calibration, meeting the gearbox’s 2400N.m maximum input torque requirement. Strict dimensional accuracy and performance inspections ensure full compatibility with original equipment.
Input Shaft Assembly Parts
Input shaft, gear, bearings, and retaining rings—core components for stable power transmission from the engine to the gearbox.
Reverse Idler Shaft Assembly Parts
Reverse idler shaft, gear, needle bearing, and thrust washers—ensuring reliable and smooth reverse gear operation.
Top Cover Assembly Parts
Shift forks, fork shafts, guide blocks, and compression springs—supporting accurate gear selection and stable shifting control.
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
1、 Input Shaft Assembly
|
No. |
Parts No. |
Part Name |
Qty. |
|
1 |
16980 |
Flattened Wire Circlip for Shaft |
1 |
|
2 |
C01020 |
Stop Ring |
1 |
|
3 |
150212K |
Single-Row Radial Ball Bearing with Snap Groove and Dust Cover on One Side |
1 |
|
4 |
16463 |
Gear Spacer |
1 |
|
5 |
14750 |
Stop Ring |
1 |
|
6 |
12JSDX240T-1701116 |
Input Shaft Gear |
1 |
|
7 |
12JS160T-1701030-4 |
Input Shaft |
1 |
|
8 |
K304523 |
Cage Assembly Bearing |
1 |
|
9 |
Q43045 |
Elastic Retaining Ring for Hole |
1 |
2、Reverse Idler Shaft Assembly
|
No. |
Parts No. |
Part Name |
Qty. |
|
1 |
GB889_2-2000-M20X1.5 |
Hexagon Lock Nut with Non-Metallic Insert |
1 |
|
2 |
JS220-1701088 |
Reverse Idler Shaft Washer |
1 |
|
3 |
JS220-1701087 |
Reverse Thrust Washer |
1 |
|
4 |
12JS200T-1701080 |
Reverse Idler Shaft Assembly |
1 |
|
|
12JS200T-1701083 |
Reverse ldler Gear |
1 |
|
|
DS100-1701085 |
Needle Bearing |
1 |
|
|
JS220-1701082 |
Reverse Idler Shaft |
1 |
|
|
12JS160T-1701084 |
Cup-Shaped Reverse Washer |
1 |
|
|
Q2821212 |
Slotted Flat-End Set Screw |
1 |
3、Top Cover Assembly
|
No. |
Parts No. |
Part Name |
Qty. |
|
|
12JSDX240T-1702010 |
Top Cover Assembly |
1 |
|
1 |
3220 |
Shift Fork Lock Screw |
4 |
|
2 |
12JS160T-1702050 |
Reverse Guide Block Assembly |
1 |
|
|
8968 |
Reverse Lock Pipe Plug |
1 each |
|
|
12JS160T-1702051 |
Reverse Guide Block |
1 each |
|
|
8774-1 |
Reverse Lock Spring |
1 each |
|
|
DS100-1702061 |
Reverse Lock Plunger |
1 each |
|
3 |
12JSDX240T -1702063 |
Reverse Shift Fork Shaft |
1 |
|
4 |
12JS160T-1702055 |
Reverse Shift Fork |
1 |
|
5 |
12JS160T-1702015 |
Top Cover |
1 |
|
6 |
19_05G100BGB-T308 |
Steel Ball |
3 |
|
7 |
1634 |
Shift Fork Shaft Interlock Pin |
2 |
|
8 |
11066 |
Stud Bolt (3-8") |
4 |
|
9 |
X-1-603 |
Hexagon Nut |
2 |
|
10 |
Q351B10 |
Thin Hexagon Nut - Fine Thread |
2 |
|
11 |
12_7G100BGB-T308 |
Steel Ball |
4 |
|
12 |
F96085-1 |
Compression Spring |
1 |
|
13 |
Q40310 |
Spring Washer |
2 |
|
14 |
Q361B10 |
Type 2 Hexagon Nut - Fine Thread |
2 |
|
15 |
F96085-1 |
Compression Spring |
3 |
|
16 |
Q72216 |
Bowl-Shaped Plug |
1 |
|
17 |
12JS160T-1702054 |
5th/6th Gear Guide Block |
1 |
|
18 |
12JSDX240T -1702066 |
5th/6th Gear Shift Fork Shaft |
1 |
|
19 |
12JSDX240T -1702058 |
5th/6th Gear Shift Fork |
1 |
|
20 |
12JSDX240T -1702064 |
1st/2nd/3rd/4th Gear Shift Fork Shaft |
2 |
|
21 |
12JSDX240T -1702057 |
3rd/4th Gear Shift Fork |
1 |
|
22 |
12JSDX240T-1702056 |
1st/2nd Gear Shift Fork |
1 |
|
23 |
Q5280628 |
Elastic Cylinder Pin |
2 |
Product Advantages
12JSDX240T Exact Fit
100% matched to original dimensions, no fitment issues for heavy-duty repairs.
Heavy-Duty Durability
Withstands 2400N.m torque and harsh working conditions, extending service life.
Smooth Shifting Performance
Precision-machined top cover and reverse idler shaft parts ensure stable gear changes.
Reliable Power Delivery
High-strength input shaft components guarantee consistent torque transmission.
Easy Maintenance
Modular design enables quick replacement without full gearbox disassembly.
Payment & Shipping Terms
● MOQ: 1 piece
● Packaging: Customizable wooden crate/carton
● Delivery: 3-20 working days (express: DHL/FedEx; sea freight for bulk)
● Payment: L/C, T/T, Western Union; tracking number provided in 24hrs
● After-Sales Service：24-hour technical support, global service network