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Fast F12JZ18A/20A/22A AMT Transmission

FAST F12JZ18A/20A/22A is Twin Countershaft AMT transmission has 12 forward gears, the gear ratio steps are arranged reasonably, and has very outstanding fuel economy performance. With double intermediate shaft structure design and integrated with a synchronizer, the maximum input speed is 2600 RPM. The length of the F12JZ18A/20A/22A transmission is 875.47 mm. The F12JZ18A/20A/22A gearbox has 12 different gears, and the reduction ratio of each gear is different. The 1st gear reduction ratio is 13.039, 2nd gear reduction ratio is 10.070, 3rd gear reduction ratio is 7.698, 4th gear reduction ratio is 5.946, 5th gear reduction ratio is 4.571, 6th gear reduction ratio is 3.531, 7th gear reduction ratio is 2.852, The 8th gear reduction ratio is 2.203, the 9th gear reduction ratio is 1.684, the 10th gear reduction ratio is 1.301, 11th gear reduction ratio is 1.000, 12th gear reduction ratio is 0.772, and the reverse gear 1 ratio is 11.758, and the reverse gear 2 ratio is 7.249.

FAST 12-speed AMT series transmission have different models, with code J in the model name means mechanical transmission, with code Z in the model name indicates that the transmission is an automatic transmission, with code D in the model name means standard transmission, with code S in the model name means transmission with Double Intermediate Shaft design.

F·SHIFT is an AMT automatic transmission system designed by Fast Company using the OptiDrive modular system of WABCO Company. It not only adopts the technical advantages of Fast double countershaft transmission, but also adopts the advanced and mature control system and actuator of WABCO.

1. It is synchronized with CMI’ advanced design and sophisticated manufacturing, adapts to harsh working conditions, and has high-intensity and heavy-duty work capabilities.
2. The Holset wastegate valve makes the low speed performance more perfect and the power performance better.
3. The cylinder block and cylinder head adopt integrated design to prevent the occurrence of engine water and oil leakage. The parts are 40% less than other similar engines, and the failure rate is greatly reduced.
4. Using forged steel camshaft and crankshaft, high-strength cylinder design, many parts are cast on the cylinder, with high rigidity, high pressure resistance, good reliability and longer service life.
5. The cylinder liner adopts a platform mesh honing design, which effectively prevents oil leakage with a perfect geometric structure, and adopts advanced technology such as new piston ring components and gasket crimping molding to reduce oil loss.

Technical Specifications

Basic Introduction of Shaanxi Fast F12JZ18A/20A/22A AMT

Transmission Model:

F12JZ18A/20A/22A

Transmission Application: Automated Manual Transmission
Input Torque: 1800-2200 N.m
Maximum Speed: 2600 RPM
Installation length:

875.47 mm

Weight Iron/Al Alloy: 270 Kg
Fuel Quantity: 15 L
Speed Ratio: 13.039-0.772
Lead Time: 15-30 Working Days
Payment Terms: T/T ,L/C
The picture of Performance Curve-DCEC Cummins Industrial Engine

Transmission Model

Input Torque

Maximum Speed

Weight Iron

F12JZ** 1800-2800 N.m 2600 RPM 290 Kg
F12JZ**A 2000-3200 N.m 2600 RPM 290 Kg
F12JZ16/18/20 1600-2000 N.m 2600 RPM 270 Kg
F12JZ22/24 2200-2400 N.m 2600 RPM 290 Kg
F12JZ26/28 2600-2800 N.m 2600 RPM 290Kg
F12JZ18A/20A/22A 1800-2200 N.m 2600 RPM 270Kg
F12JZ24A/26A/28A 2400-2800 N.m 2600 RPM 290Kg
F12JZ30A/32A 3000-3200 N.m 2600 RPM 290Kg
F13JZ18A/20A/22A 1800-2200 N.m 2600 RPM 310 Kg
F13JZ24A/26A 2400-2600 N.m 2600 RPM 310 Kg
F16JZ** 1800-2800 N.m 2600 RPM 310 Kg
F16JZ**A 2000-2400 N.m 2600 RPM 310 Kg
F16JZ18/20/22 1800-2200 N.m 2600 RPM 310 Kg
F16JZ24/26/28 2400-2800 N.m 2600 RPM 310 Kg
F16JZ20A/22A/24A 2000-2400 N.m 2600 RPM 310 Kg
F16JZ26A/28A 2600-2800 N.m 2600 RPM 310 Kg
F16JZ30A/32A 3000-3200 N.m 2600 RPM 310 Kg
——END——

Shaanxi Fast F12JZ18A/20A/22A AMT-Automatic Manual Transmission Data Sheet

Model F12JZ18A/20A/22A Input TorqueN.m 1800-2200
Maximum SpeedRPM 2600 Lengthmm 875.47
Weight Iron/Al Alloy (Kg) 270 Oil (L) Tol. ±4% 14

Speed Ratio of Shaanxi Fast F12JZ18A/20A/22A AMT-Automatic Manual Transmission

1st Gear 13.039 2nd Gear 10.07 3rd Gear 7.698
4th Gear 5.946 5th Gear 4.571 6th Gear 3.531
7th Gear 2.852 8th Gear 2.203 9th Gear 1.684
10th Gear 1.301 11th Gear 1 12th Gear 0.772
R1 11.758 R2 7.249
——END——

Scopes of Supply of Shaanxi Fast F12JZ**A Automated Manual Transmission

1. Electrical Shifting Systerm 2. TCU clutch control unit 3. Speed sensor
4. Distance Sensor 5. Temperature Sensor 6. Preesure Sensor
7. Main Box 8. Auxiliary Box 9. Gearbox Housing
10. Countershaft Braker 11. Braker Solenoid Valve
——END——

Optional Accessories of Shaanxi Fast F12JZ**A Automated Manual Transmission

1. Shift Handle 2. Clutch Assembly 3. Power Takeoff
4. Hydraulic Retarder Comes With Lubricating Oil Pump
——END——

Modifiable Components of Shaanxi Fast F12JZ**A Automated Manual Transmission

1. Helical Teeth 2. Straight Teeth 3. Lubricating Oil Pump
4. Smoothing 5. Gear Shot Blasting
——END——

Note: All Above Data are Just for Referenece, All Data Might Change Without Notices or Update, Please Contact Our Sales Team to Confirm All Details Via WhatsApp or Email.

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Sales Team


Automotive Sales - Mr. Wells Luo

Sales Director - Mr. Jasper Lee      

Service Team


Customer Service - Mrs. Wendy Fu

Ventas españolas - Victoria

Contact EMAC Now!

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