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Mr. Perry Wu International Sales Director
FAST 12JSD200T-B+QH70 Gearbox Parts - Rear Cover/Auxiliary Case Cylinder/Bearing Cover Assembly Components
|
Model |
12JSD200T-B+QH70 |
|
Brand |
Fast |
|
Number of Gears |
12 forward gears + 2 reverse gears |
|
Shifting Mode |
Manual Shifting |
|
Maximum Input Torque |
2000Nm |
|
Adapted Vehicles |
Heavy-duty scenarios such as heavy-duty trucks, mining transportation, and construction machinery |
Product Description
These parts are engineered exclusively for the FAST 12JSD200T-B+QH70 12-speed manual gearbox, tailored to heavy-duty scenarios like long-haul transportation, mining, and construction.
Crafted from premium materials—ductile iron for covers, high-strength steel for cylinders, and wear-resistant rubber for seals—all parts undergo professional precision processing. Key processes include precision casting, CNC machining, heat treatment, and airtightness testing, meeting the gearbox’s 2000Nm maximum input torque requirement. Strict dimensional accuracy and performance inspections ensure full compatibility with original equipment.
Rear Cover Assembly Parts
Rear cover housing, output flange, synchronizer assembly, and gaskets—forming the transmission’s rear-end protection and power output support.
Auxiliary Case Cylinder Assembly Parts
Range gear cylinder, piston, O-rings, and cylinder head gasket—supporting reliable range shift switching of the auxiliary case.
Main Shaft Rear Bearing Cover Assembly Parts
Main shaft rear bearing cover and oil seal—ensuring stable main shaft rotation and effective leak-proof protection.
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、 Rear Cover Assembly
|
No. |
Parts No. |
Part Name |
Qty. |
|
1 |
RTD-11609A-1707016 |
Rear Cover Gasket |
1 |
|
2 |
RTD-11609A-1707067-1 |
Auxiliary Case Shift Fork |
1 |
|
3 |
Q171B1250 |
Hexagon Head Bolt with Hole in Head - Fine Thread |
2 |
|
4 |
12JSD200T-1707047 |
Auxiliary Case Extended Countershaft Welded Assembly |
1 |
|
5 |
JSD220-1707015-7 |
Rear Cover Housing |
1 |
|
6 |
14347 |
Gasket |
1 |
|
7 |
JS220-1707060-16 |
Auxiliary Case Cylinder Assembly |
1 |
|
8 |
Q1421032M |
Pre-Coated Hexagon Head Bolt and Spring WasherAssembly |
4 |
|
9 |
A-C09008 |
Bolt Assembly |
8 |
|
10 |
No |
|
|
|
11 |
12JSD200T-1707105 |
Auxiliary Case Main Shaft |
1 |
|
12 |
16JSS300T-1707109 |
Tapered Roller Bearing |
1 |
|
13 |
12JS160T-1707112 |
O-Ring |
2 |
|
14 |
JS220-1707111 |
Odometer Drive Gear Bushing |
1 |
|
15 |
JS180-1701157-6 |
Odometer Rotor |
1 |
|
16 |
RTD-11609A-1707156 |
Main Shaft Rear Bearing Cover Gasket |
1 |
|
17 |
RTD-11609A-1707154-4 |
Main Shaft Rear Bearing Cover Assembly |
1 |
|
18 |
Q1421075 |
Hexagon Head Bolt and Spring Washer Assembly |
5 |
|
19 |
A-C09009 |
Bolt Assembly |
1 |
|
20 |
F96119 |
Dust Cover |
1 |
|
21 |
JS220-1707159-1 |
Output Flange |
1 |
|
22 |
F96006 |
Flange Nut |
1 |
|
23 |
No |
|
|
|
24 |
|
|
1 |
|
25 |
No |
|
|
|
26 |
C03054-16 |
Electronic Odometer Sensor Assembly |
1 |
|
27 |
JSD180-1707052 |
Auxiliary Case Countershaft Cover |
1 |
|
28 |
JSD180-1707053 |
Auxiliary Case Countershaft Cover Gasket |
2 |
|
29 |
JS180-1707051 |
Stop Ring |
2 |
|
30 |
Q433120 |
Flattened Wire Circlip for Shaft |
2 |
|
31 |
192311E |
Cylindrical Roller Bearing |
2 |
|
32 |
12JSD200T-1707050 |
Auxiliary Case Countershaft Welded Assembly |
1 |
|
33 |
12JSD160T-1707108 |
Auxiliary Case Main Shaft Gear Pressure Plate |
1 |
|
34 |
12JSD200T-1707106 |
Auxiliary Case Main Shaft Reduction Gear |
1 |
|
35 |
12JSD200T-1707107 |
Auxiliary Case Main Shaft Washer |
1 |
|
36 |
12JSD160T-1707140-2 |
Synchronizer Assembly |
1 |
2、Auxiliary Case Cylinder Assembly
|
No. |
Parts No. |
Part Name |
Qty. |
|
|
JS220-1707060-16 |
Auxiliary Case Cylinder Assembly |
|
|
1 |
JS220-1707061-1 |
Range Gear Shift Fork Shaft |
1 |
|
2 |
14765 |
O-Ring |
1 |
|
3 |
JS220-1707062-1 |
Range Gear Cylinder |
1 |
|
4 |
14345 |
O-Ring |
1 |
|
5 |
14341 |
Range Gear Cylinder Piston |
1 |
|
6 |
14344 |
O-Ring |
1 |
|
7 |
GB890-80-M16x1.5 |
Thin Hexagon Nut with Nylon Insert |
1 |
|
8 |
14349 |
Cylinder Head Gasket |
1 |
|
9 |
QH70-4211401-1 |
Intermediate Position Cylinder Assembly |
1 |
|
10 |
Q1421032 |
Hexagon Head Bolt and Spring Washer Assembly |
4 |
|
11 |
No |
|
1 |
|
12 |
No |
|
3、Main Shaft Rear Bearing Cover Assembly
|
No. |
Parts No. |
Part Name |
Qty. |
|
1 |
RTD-11609A-1707155-5 |
Main Shaft Rear Bearing Cover |
1 |
|
2 |
|
|
|
|
3 |
19109-2 |
Oil Seal |
1 |
Product Advantages
12JSD200T-B+QH70 Exact Fit
100% matched to original dimensions, no fitment issues for heavy-duty repairs.
Heavy-Duty Durability
Withstands high torque and harsh working conditions, long service life.
Superior Sealing Performance
High-quality O-rings and gaskets prevent oil leakage and dust intrusion.
Stable Power Output
Precision-machined rear cover and cylinder components ensure smooth torque delivery.
Easy Maintenance
Modular design enables quick part replacement without disassembling the entire gearbox.
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