axles
MS-13X™ Single Rear Drive Axle
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Product Availability

Asia Pacific, Europe, North America

Applications

Bus and Coach
Truck
ms-13x axle

The MS-13X single rear drive axle for medium-duty applications is designed for maximum durability and weight savings. It is ideal for Class 6 and 7 trucks and buses. Compatible with drum, disc and parking brakes, it has a gross axle weight rating (GAWR) ranging from 17,000 to 21,000 pounds.

Features & Benefits

  • Robust and proven design
  • Utilizes existing 14X axle housing for ease of suspension installation
  • Ratios between 3.90 and 6.50 to fit multiple applications
  • Up to 59 pounds lighter than the MS-14X™ carrier for increased payload and improved vehicle efficiency
  • Optional innovative, power-dense Quiet Ride® gearing with low noise for best running comfort in passenger bus applications
  • Air brake or hydraulic brake options based on vehicle class and preference
  • Lightweight design and power density for higher payload
  • High durability and reliability for greater uptime
  • Lower fuel consumption for reduced total cost of ownership

MS-13X™ Single Rear Drive Axle

Product Features
Utilizes existing 14x axle housing - Ease of suspension installation for OEMs
Innovative, power-dense gearing
Ratios between 3.90 and 6.50 - Wide range of ratios fit multiple applications
Up to 59 pounds lighter than MS-14X carrier - Increased payload and improved vehicle efficiency
MS-13X axle housing
MS-13X™ gearing
MS-13X™ ratios
MS-13X™ housing
MS-13X axle housing
Utilizes existing 14x axle housing - Ease of suspension installation for OEMs
MS-13X™ gearing
Innovative, power-dense gearing
MS-13X™ ratios
Ratios between 3.90 and 6.50 - Wide range of ratios fit multiple applications
MS-13X™ housing
Up to 59 pounds lighter than MS-14X carrier - Increased payload and improved vehicle efficiency

Videos:

  MS-17-13X MS-19-13X MS-21-13X 
Gross axle weight rating (GAWR) 17,000 lbs 19,000 lbs 21,000 lbs
Gross combined weight (GCW) highway 41,000 lbs 41,000 lbs 41,000 lbs
Standard ratios 3.90, 4.11, 4.33, 4.63, 4.88, 5.13, 5.29, 5.57, 5.83, 6.17, 6.50 3.90, 4.11, 4.33, 4.63, 4.88, 5.13, 5.29, 5.57, 5.83, 6.17, 6.50 3.90, 4.11, 4.33, 4.63, 4.88, 5.13, 5.29, 5.57, 5.83, 6.17, 6.50
Ring gear pitch diameter 13.97 in (355 mm) 13.97 in (355 mm) 13.97 in (355 mm)
Axle shaft spline size 2 in (51 mm) - 39 teeth or 2.1 in (53 mm) - 41 teeth 2 in (51 mm) - 39 teeth or 2.1 in (53 mm) - 41 teeth 2.1 in (53 mm) - 41 teeth
Axle shaft body diameter 1.81 in (46 mm) or 1.88 in (48 mm) 1.81 in (46 mm) or 1.88 in (48 mm) 1.88 in (48 mm)
Housing box size 5.25 in x 4.62 in
(133 mm x 117 mm)		 5.25 in x 4.62 in
(133 mm x 117 mm)		 5.25 in x 4.62 in
(133 mm x 117 mm)
Housing wall thickness 0.375 in (9.5 mm) 0.375 in (9.5 mm),
0.437 in (11 mm)		 0.375 in (9.5 mm),
0.437 in (11 mm)
Wheel-end series L or R L or R R


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