As the world’s largest independent manufacturer of commercial truck axles, Meritor delivers performance, reliability and efficiency to meet the toughest demands. The 13X is a cost-effective, single drive axle engineered for medium-duty applications. Designed for exceptional durability and weight savings, the 13X is ideal for class 6 and 7 trucks and buses.

Ideal for Medium-Duty Applications

MERITOR® MS-13X™ SINGLE DRIVE AXLE

Up to 59 lbs. lighter than MS-14X carrier

Wide range of ratios: 3.90 - 6.50

Ease of implementation – utilizes same housing as 14X/145 designs

Innovative, power dense design ideal for medium-duty applications

Performance Advantages:

Call 1-866-668-7221or visit meritor.com

©2021 Meritor, Inc.Litho in USA, SP-1699Revised 3/21

Meritor Heavy Vehicle Systems, LLC2135 West Maple RoadTroy, Michigan 48084 USA

With more than 110 years of axle manufacturing expertise, Meritor has provided innovative solutions for a broad range of vehicle applications. The 13X axle brings Meritor’s legendary durability and efficiency to the medium duty market.

Meritor MS-13X Single Drive Axle

MS-13X Single Drive AxleMS-17-13X MS-19-13X MS-21-13X

Gross Axle Weight Rating (GWAR) 17,000 lbs. 19,000 lbs. 21,000 lbs.

Gross Combined Weight (GCW) Highway 41,000 lbs. 41,000 lbs. 41,000 lbs.

Standard Ratios3.90, 4.11, 4.33, 4.63, 4.88, 5.13,

5.29, 5.57, 5.83, 6.17, 6.503.90, 4.11, 4.33, 4.63, 4.88, 5.13,

5.29, 5.57, 5.83, 6.17, 6.503.90, 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" (355 mm) 13.97" (355 mm) 13.97" (355 mm)

Axle Shaft Spline Size2" (50.8 mm) –

39 teeth2.1" (53.3 mm) –

41 teeth2" (50.8 mm) –

39 teeth2.1" (53.3 mm) –

41 teeth2.1" (53.3 mm) –

41 teeth

Axle Shaft Body Diameter 1.81" (45.9 mm) 1.88" (47.8 mm) 1.81" (45.9 mm) 1.88" (47.8 mm) 1.88" (47.8 mm)

Housing Box Size 5.25" (133 mm) x 4.62" (117 mm) 5.25" (133 mm) x 4.62" (117 mm) 5.25" (133 mm) x 4.62" (117 mm)

Housing Wall Thickness 0.375" (9.5 mm) 0.375" (9.5mm), 0.437" (11 mm) 0.375" (9.5mm), 0.437" (11 mm)

Wheel End Series L R L R R

Warranty CoverageAxle warranty is 2 years/unlimited miles, with parts and labor included. Every claim is fully supported by OnTrac™. Call 866-668-7221 (OnTrac1). For details, download the Commercial Vehicle Systems Warranty brochure (SP-95155) from meritor.com/lod.

Backed by DriveForce™

Every Meritor 13X axle is backed by unsurpassed service and support, with Meritor DriveForce – Meritor’s North American sales and service organization – and the OnTrac technical support center available to assist customers with solutions before, during and after the sale. For more information, call 866-668-7221 or visit meritor.com today.

Premium Support

17,000 – 21,000 lbs. GAWR

41,000 lbs. GVW/GCW

Parking brake compatible

Compatible with drum or disc brakes

Features:

For product application details, download the Meritor axle applications guidelines brochure (TP-9441) from meritor.com/lod.For additional ratios or applications not covered by the MS-13X, consider selecting the MS-14X.

For additional questions, please contact your Meritor DriveForce representative.Need to find your DriveForce representative? Locate them at meritor.com/DriveForce.