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Fast C8J45TA/50TA MT

FAST C8J45TA/50TA transmission has 8 forward gears, the gear ratio steps are arranged reasonably, and has very outstanding fuel economy performance. With double intermediate shaft structure design, and the maximum input speed is 3600 RPM. The length of the C8J45TA/50TA transmission is 694.0 mm. The C8J45TA/50TA manual transmission has 8 gears, and each gear has a different reduction ratio. The 1st gear reduction ratio is 7.460, the 2nd gear reduction ratio is 5.346, the 3rd gear reduction ratio is 3.825, the 4th gear reduction ratio is 2.731, the 5th gear reduction ratio is 1.950, the 6th gear reduction ratio is 1.398, the 7th gear reduction ratio is 1.000, the 8th gear reduction ratio is 0.714, and the reverse gear ratio is 7.460, and the reverse gear 2 ratio is 1.950. The C8J45TA/50TA manual transmission has an input torque range of 450/500 N.m. The C8J45TA/50TA transmission weight is 85 Kg.

FAST 8-speed MT series transmission have different models, with code D in the model name means standard transmission, with code S in the model name means transmission with Double Intermediate Shaft design.

EMAC is the official exporting agent of Fast Group (joint venture of CAT AT transmission), Dongfeng-Dana Axle (Dongfeng and Dana joint venture), Komman air suspension (Leading brand in China in air suspension business line), by integrated all this leading brands together, DuraMac powertrain products covers the products range from diesel/gas engine and engine related system, clutch, transmission, transfer case, main shaft, axle and air suspension.

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 C8J45TA/50TA MT

Transmission Model: C8J45TA/50TA
Transmission Application: Manual Transmission
Input Torque: 450/500 N.m
Maximum Speed: 3600 RPM
Installation length: 694.0 mm
Weight Iron/Al Alloy: 85 Kg
Fuel Quantity: 3.3 L
Speed Ratio: 7.460-0.714
Lead Time: 15-30 Working Days
Payment Terms: T/T ,L/C
The picture of Performance Curve-DCEC Cummins Industrial Engine

Shaanxi Fast C8J45TA/50TA MT-Manual Transmission Data Sheet

Model C8J45TA/50TA Input TorqueN.m 450/500
Maximum SpeedRPM 3600 Lengthmm 694
Weight Iron/Al Alloy (Kg) 85 Oil (L) Tol. ±5% 3.3

Speed Ratio of Shaanxi Fast C8J45TA/50TA MT-Manual Transmission

1st Gear 7.459 2nd Gear 5.345 3rd Gear 3.824
4th Gear 2.731 5th Gear 1.95 6th Gear 1.397
7th Gear 1 8th Gear 0.714 9th Gear /
R1 7.46 R2 1.95    
——END——

Scopes of Supply of Shaanxi Fast Gear C8J45TA/50TA Manual Transmission

Air Intake System 1.  Air Intake Manifold Starting System 1.  Starter Motor
2.  Inter-Cooler 2.  Starter Rely
Exhuast System 1.  Exhuast Manifold Fuel System 1.  Fuel Transfer Pump
2.  Turbocharger 2.  High-Pressure Fuel Pump
3.  Exhuast Elbow 3.  Fuel Filter
Charging System 1.  Charging Alternator Engine Shut-Down System 1.  Engine Fuel Shut-Off Solenoid
Cooling System 1.  Water Pump Lubricating System 1.  Oil Pump
2.  Engine Fan 2.  Oil Filter
3.  Standard Radiator 3. N/A
Power Output System 1. Flywheel Engine Auiliary Accessories 1. Air Compressor
2. Standard Flywheel Housing 2. Power Steering Pump
Engine Mounting System 1.  Engine Mouting Bracket
——END——

Optional Accessories of Shaanxi Fast Gear C8J45TA/50TA Manual Transmission

1. Clutch Housing 2. Releasing Device Assembly 3. Power Take-Off
4. Water Cooling Device 5. Air Cooling and Emergency Steering Assistance 6. Coupler Booster
7. Shift Booster 8. Gear Selection Booster
——END——

Modifiable Components of Shaanxi Fast Gear C8J45TA/50TA Manual Transmission

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

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Installation Drawing

The picture of Installation Manual showing the accessories and scopes of supply.

Installation Manual

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Operation Manual

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Parts Catalogue

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Report & Certifcate

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Sales Team


Automotive Engine - Mr. Wells Luo

Sales Director - Mr. Jasper Lee      

Service Team


Technical Service - Mr. Vin Hu

Customer Service - Mrs. Wendy Fu

Contact EMAC Now!

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