China best CZPT Reverse Engaging Propeller Thrust CZPT Marine China Diesel Spare Stand Gearbox with Hot selling

Product Description


Hot Sales

Product Description



forward reverse engaging disengaging reduction propeller thrust CHINAMFG marine gearbox


Data of J400A / JD400A / JT400A

J400 Modle

Housing:SAE 0.1 Flange:14″,16″,18″
LWH 713×950×890mm Net :820kgs
Nominal coefficient Accurate coefficient Ratio (horsepower/r/m)
2:01 2.042:1 0.45
2.5:1 2.476:1 0.45
3:01 3.000:1 0.45
3.5:1 3.474:1 0.45
4:01 3.491:1 0.38
5:01 4.730:1 0.25


 JD400 Modle

Housing:SAE 0.1 Flange:14″,16″,18″
LWH 801×1571×1066mm Net :1050kgs
Nominal coefficient Accurate coefficient Ratio (horsepower/r/m)
4:01 4.000:1 0.45
4.3:1 4.227:1 0.45
4.5:1 4.476:1 0.45
4.7:1 4.700:1 0.45
5:01 5.000:1 0.45
5.5:1 5.474:1 0.4
6:01 5.890:1 0.38



Housing:SAE 0.1  Flange:14″,16″,18″
LWH 832×1052×1160mm Net :1300kgs
Nominal coefficient Accurate coefficient Ratio (horsepower/r/m)
6:01 6.108:1 0.45
6.5:1 6.513:1 0.45
7:01 6.957:1 0.45
7.5:1 7.445:1 0.45
8:01 7.950:1 0.415
8.5:1 8.526:1 0.385
9:01 9:01 0.36
9.5:1 9.474:1 0.333







Application: Electric Cars, Motorcycle, Marine
Function: Clutch
Input Speed: 1000rpm
Output Torque: 264mm / 355mm / 375mm
Gearing Arrangement: Harmonic
Output Speed: 2100rpm


Customized Request


Steps to Replace a Faulty Gearbox in an Automobile

Replacing a faulty gearbox in an automobile is a complex task that requires proper tools, skills, and safety precautions. Here are the general steps involved in the process:

  1. Prepare the Vehicle: Park the vehicle on a flat surface and engage the parking brake. Disconnect the battery to ensure safety during the procedure.
  2. Drain Fluids: Drain the transmission fluid from the old gearbox into a suitable container.
  3. Disconnect Components: Remove any components obstructing access to the gearbox, such as the driveshaft, exhaust system, and linkage.
  4. Suspend the Engine: If necessary, use an engine hoist or support to suspend the engine safely.
  5. Support the Gearbox: Use a transmission jack to support the weight of the gearbox.
  6. Remove Gearbox: Detach the gearbox from the engine by removing bolts and disconnecting the clutch or torque converter.
  7. Install New Gearbox: Position the new gearbox onto the engine and secure it in place with bolts.
  8. Reconnect Components: Reattach the driveshaft, exhaust system, and linkage that were disconnected earlier.
  9. Refill Fluids: Fill the new gearbox with the appropriate transmission fluid according to the manufacturer’s specifications.
  10. Lower Engine: Carefully lower the engine back into its original position if it was suspended.
  11. Test and Adjust: Start the vehicle and test the new gearbox for proper operation. Check for any leaks, unusual noises, or gear shifting issues.
  12. Final Check: Double-check all connections and ensure that all components are properly secured.
  13. Dispose of Old Fluid: Dispose of the old transmission fluid safely and responsibly.
  14. Dispose of Old Gearbox: Properly dispose of the old gearbox according to local regulations.

It’s important to note that gearbox replacement can vary significantly depending on the vehicle’s make and model. It’s recommended to consult the vehicle’s service manual or seek professional assistance if you’re not experienced in automotive repair.

China best CZPT Reverse Engaging Propeller Thrust CZPT Marine China Diesel Spare Stand Gearbox   with Hot selling		China best CZPT Reverse Engaging Propeller Thrust CZPT Marine China Diesel Spare Stand Gearbox   with Hot selling
editor by CX 2023-09-30

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