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Fast C12JSDQXL240T/260T/280T MT

FAST C12JSDQXL240T/260T/280T transmission has 12 forward gears, the gear ratio steps are arranged reasonably, and has very outstanding fuel economy performance. With mechanical structure design and integrated with a synchronizer, the maximum input speed is 2600 RPM. The length of the C12JSDQXL240T/260T/280T transmission is 997.1 mm. The C12JSDQXL240T/260T/280T manual transmission has 12 gears, and each gear has a different reduction ratio. The 1st gear reduction ratio is 14.091, the 2nd gear reduction ratio is 10.991, the 3rd gear reduction ratio is 8.454, the 4th gear reduction ratio is 6.667, the 5th gear reduction ratio is 5.196, the 6th gear reduction ratio is 4.150, the 7th gear reduction ratio is 3.395, the 8th gear reduction ratio is 2.648, the 9th gear reduction ratio is 2.037, the 10th gear reduction ratio is 1.606, the 11th gear reduction ratio is 1.252, the 12th gear reduction ratio is 1.000, and the reverse gear 1 ratio is 12.964, and the reverse gear 2 ratio is 3.123. The C12JSDQXL240T/260T/280T manual transmission has an input torque range of 2400-2800 N.m. The C12JSDQXL240T/260T/280T transmission weight is 312 Kg.

FAST 12-speed MT series transmission have different models, with code J in the model name means mechanical transmission, with code S in the model name means transmission with Double Intermediate Shaft design.

Through more than 10 years of continuous effort, DuraMac has been exporting premium powertrain solutions to our global partners from more than 30 countries and regions, including USA, Belgium, Spain, Turkey, Thailand and Vietnam, including some of region’s well-known manufacturers.

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 Fast C12JSDQXL240T/260T/280T MT

Transmission Model: C12JSDQXL240T/260T/280T
Transmission Application: Manual Transmission
Input Torque: 2400-2800 N.m
Maximum Speed: 2600 RPM
Installation length: 997.1 mm
Weight Iron/Al Alloy: 312 Kg
Fuel Quantity: 15 L
Speed Ratio: 14.091-1
Lead Time: 15-30 Working Days
Payment Terms: T/T ,L/C
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Shaanxi Fast C12JSDQXL240T/260T/280T MT-Manual Transmission Data Sheet

Model C12JSDQXL240T/260T/280T Input TorqueN.m 2400-2800
Maximum SpeedRPM 2600 Lengthmm 997.1
Weight Iron/Al Alloy (Kg) 312 Oil (L) Tol. ±5% 15

Speed Ratio of Shaanxi Fast C12JSDQXL240T/260T/280T MT-Manual Transmission

1st Gear 14.091 2nd Gear 10.991 3rd Gear 8.454
4th Gear 6.667 5th Gear 5.196 6th Gear 4.15
7th Gear 3.395 8th Gear 2.648 9th Gear 2.037
10th Gear 1.606 11th Gear 1.252 12th Gear 1
R1 12.964 R2 3.123
——END——

Scopes of Supply of Shaanxi Fast Gear C12JSDQXL240T/260T/280T 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 C12JSDQXL240T/260T/280T Manual Transmission

1. Clutch Housing 2. Releasing Device Assembly 3. Power Take-Off
4. Full Synchronizer and No Synchronizer 5. Water Cooling Device 6. Air Cooling and Emergency Steering Assistance
7. Coupler Booster 8. Shift Booster 9. Gear Selection Booster
——END——

Modifiable Components of Shaanxi Fast Gear C12JSDQXL240T/260T/280T Manual Transmission

1. Helical Teeth 2. Straight Teeth 3. Lubricating Oil Pump
4. Triple Cone Synchronizer 5. Smoothing 6. 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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Engine Sale Manual

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Installation Drawing

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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

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