MT-14X Tandem

MT-14X™ Tandem Rear Drive Axle

Applications

Construction and Utility Fire and Rescue Heavy Haul Truck

Product Availability

Asia Pacific Europe North America South America

Cummins-Meritor's MT-14X tandem rear drive axle is engineered with advanced technology to deliver greater performance and reliability. Built with the perfect balance of efficiency and durability, this robust axle fits multiple applications and can be configured to offer improved fuel economy, greater torque and maximum traction at gross axle weight ratings (GAWR) between 34,000 and 44,000 lbs.

Features & Benefits

  • Most complete range of ratios in the industry - 22 ratios from 2.28 to 7.17 - designed to match application and specific engine manufacturers' recommendations
  • Twenty percent larger inter-axle differential (IAD) delivers high torque capacity up to 2,050 pound-feet, longer life and increased reliability
  • High-torque gear design delivers smoother and quieter operation, greater torque capacity and longer component life
  • Premium Amboid design offers less vibration, increased ride quality and overall component life
  • Rugged, single-piece carrier offers precise gear alignment
  • Optional forward and reverse pump for vocational applications improves protection due to added lubrication at all times
  • Optional driver-controlled differential lock (DCDL) maximizes traction and spinout protection in slippery conditions
Axle Model Rating Pounds (kg) GCW Highway pounds (kg) Standard Ratios* Ring Gear Size (Pitch Diameter) Inches (mm) Axle Shaft Spline Size Inches (mm) Axle Shaft Body Diameter Inches (mm) Housing Box Size Inches (mm) Wall Thickness at Spring Seat Inches (mm) Wheel-end Series
Max. 3% Grade (Turnpike) Max. 8% Grade (Paved)
MT-34-14X 34,000 (15,436) 80,000 (36,320) 80,000 (36,320) 2.28, 2.47, 2.64, 2.79, 2.85, 3.08, 3.25, 3.36, 3.42, 3.55, 3.70, 3.90, 4.11 Optional Ratios Available 15.31 (388.91) 2.10 (53.3) 41 Teeth 1.88 (47.8) / 2.00 (50.8) 5.25 x 4.62 (134 x 117) 0.37 (9.5) Std/DualTrac™ 0.43 (11.0) Std/DualTrac 0.56 (14.3) Wide Track R
MT-40-14X 40,000 (18,160) 145,000 (65,830) 125,000 (56,750) 2.28, 2.47, 2.64, 2.79, 2.85, 3.08, 3.25, 3.36, 3.42, 3.55, 3.70, 3.90, 4.11, 4.33, 4.63, 4.88, 5.29, 5.86, 6.14,6.43, 6.83, 7.17 15.31 (388.91) 2.10 (53.3) 41 Teeth 1.88 (47.8) / 2.00 (50.8) 5.25 x 4.62 (134 x 117) 0.37 (9.5) Std/DualTrac 0.43 (11.0) Std/DualTrac 0.50 (12.7) Standard Track 0.56 (14.3) Wide Track
MT-44-14X 44,000 (19,976) 44,000 (19,976) 145,000 (65,830) 3.70, 3.90, 4.11, 4.33, 4.63, 4.88, 5.29, 5.86 Available in Hypoid Ratios Only 15.31 (388.91) 2.10 (53.3) 41 Teeth 2.00 (50.8) 5.25 x 4.62 (134 x 117) 0.50 (12.7) Standard Track 0.56 (14.3) Wide Track
Title Action
Meritor Axles - Europe View brochure
Meritor Fire and Rescue Capabilities View brochure
Meritor MT-14X Tandem Drive Axle View brochure
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