Leave Your Message

Shaanxi Fast 12JSD180TA Transmission Parts - Input Shaft, Reverse Idler Shaft & Top Cover Assembly Components

OEM-Grade Core Components for Fast 12JSD180TA

Power Input & Shifting Parts

Fit for Heavy-Duty Vehicles

    Application & Compatibility

    微信图片_20260110145350_21796_151

    Model

    12JSD180TA

    Brand

    Fast

    Number of Gears

    12 forward gears + 2 reverse gears

    Shifting Mode

    Manual with full synchronizer

    Maximum Input Torque

    1800N·m

    Adapted Vehicles

    Heavy commercial vehicles: 8×4 cargo trucks, 6×4 tractors (e.g., Sinotruk, Shaanxi Auto heavy-duty trucks)

    Construction machinery: Mining dump trucks, large loaders

    Product Description

    These parts are engineered to Shaanxi Fast Gear’s original specs, exclusively for the 12JSD180TA 12-speed manual transmission. Built for heavy-duty scenarios like long-haul transport, mining, and construction, they ensure seamless compatibility with the three key assemblies.


    Crafted from high-quality materials—alloy steel for shafts, wear-resistant alloy for shifting components, durable rubber for seals—all parts undergo precision processing (forging, heat treatment, CNC machining) to meet 1800N·m max torque and 2600rpm rated speed. Strict quality checks guarantee OEM compliance.


    Input Shaft Assembly Components

    Input shaft, radial ball bearing with stop groove and dust cover, gear spacer, stop ring, and flattened wire circlip—ensuring stable torque input from the engine.

    Reverse Idler Shaft Assembly Components

    Reverse idler shaft, idler gear, needle bearing, cup-shaped reverse washer, and slotted set screw—supporting smooth reverse gear operation.

    Top Cover Assembly Components

    Shift forks, fork shafts, guide blocks, steel balls, compression springs, and interlock pins—enabling accurate and responsive gear selection.


    As direct-fit parts, no modification is needed for installation. Fully interchangeable with original equipment, they’re ideal for routine servicing or emergency repairs. Professional after-sales support is provided.

    Detail Parts List

    1Input Shaft Assembly

    4-

    No.

    Parts No.

    Part Name

    Qty.

    1

    16980

    Flattened Wire Circlip for Shaft

    1

    2

    C01021

    Stop Ring

    1

    3

    150212K

    Single-Row Radial Ball Bearing with Snap Groove andDust Cover on One Side

    1

    4

    16463

    Gear Spacer

    1

    5

    14750

    Stop Ring

    1

    6

    JS180A-1701030-S

    Input Shaft

    1

    7

    16566

    Second Shaft Bushing

    1

    2、Reverse Idler Shaft Assembly

    5-

    No.

    Parts No.

    Part Name

    Qty.

    1

    12JS160T-1701084

    Cup-Shaped Reverse Washer

    1

    2

    12JS200T-1701083

    Reverse ldler Gear

    1

    3

    DS100-1701085

    Needle Bearing

    1

    4

    JS220-1701082

    Reverse Idler Shaft

    1

    5

    Q2821212

    Slotted Flat-End Set Screw

    1

    3、Top Cover Assembly

    6-

    No.

    Parts No.

    Part Name

    Qty.

    1

    12_7G100BGB-T308

    Steel Ball

    4

    2

    19_05G100BGB-T308

    Steel Ball

    3

    3

    1634

    Shift Fork Shaft Interlock Pin

    2

    4

    3220

    Shift Fork Lock Screw

    3

    5

    11066

    Stud Bolt

    4

    6

    12JS160T-1702012-Y

    Top Cover with Thread Insert Assembly

    1

    7

    12JS160T-1702050-1

    Reverse Guide Block Assembly

    1

    8

    12JS160T-1702054

    5th/6th Gear Guide Block

    1

    9

    12JS160T-1702055

    Reverse Shift Fork

    1

    10

    12JS160T-1702056

    1st/2nd Gear Shift Fork

    1

    11

    12JS160T-1702057

    3rd/4th Gear Shift Fork

    1

    12

    12JS160T-1702058-2

    5th/6th Gear Shift Fork

    1

    13

    12JS160T-1702059-1

    5th/6th Gear Shift Guide Block

    1

    14

    12JS160T-1702063

    Reverse Shift Fork Shaft

    1

    15

    12JS160T-1702064-1

    1st/2nd/3rd/4th Gear Shift Fork Shaft

    2

    16

    12JS160T-1702066

    5th/6th Gear Shift Fork Shaft

    1

    17

    F96085-1

    Compression Spring

    1

    18

    F96085-1

    Compression Spring

    3

    19

    GB889-80-M12X125

    Hexagon Nut with Nylon Insert (M12x 125)

    1

    20

    JS100A-1702072

    Swing Shift Head

    1

    21

    JS100A-1702073

    Support Pin

    1

    22

    Q351B10

    Thin Hexagon Nut

    2

    23

    Q361B10

    Type 2 Hexagon Nut

    2

    24

    Q40112

    Flat Washer

    1

    25

    Q40310

    Spring Washer

    2

    26

    Q5280630

    Elastic Cylinder Pin

    2

    27

    X-1-603

    Hexagon Nut

    2

    Product Advantages

    Perfect OEM Compatibility
    100% matched to 12JSD180TA’s original dimensions, ensuring hassle-free fit without adjustments.
    Stable Power Input
    Alloy steel input shaft with precision processing delivers reliable torque transmission, adapting to high-load conditions.
    Smooth Reverse Operation
    High-quality reverse idler shaft and gear ensure stable power output for reverse gear, reducing operational noise.
    Precise Shifting Experience
    Precision-machined top cover components guarantee accurate gear positioning and smooth shifting.
    Easy Maintenance
    Modular design allows quick replacement without disassembling the entire transmission, saving time and labor costs.

    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

     

    Leave Your Message