Meritor MD2014X-463

The Meritor MD2014X-463 is a high-torque tandem rear-drive axle differential, purpose-built for Class 8 vocational and severe-duty trucks operating in the most demanding environments. With a 4.63:1 gear ratio, this differential is designed for maximum pulling power and traction in applications where steep grades, heavy payloads, off-road terrain, or constant start-and-stop cycles are the norm.

Engineered as part of Meritor’s reliable MD2014X series, the MD2014X-463 offers industry-proven hypoid gearing and a top-mounted modular carrier, making it service-friendly while delivering superior performance and durability under heavy loads. It is a go-to solution for construction, refuse, logging, and other extreme-use fleets that demand strength, longevity, and low-maintenance operation.

Key Features

• Model: MD2014X-463
• Series: Meritor MD2014X – Tandem Rear Drive Axle Series
• Axle Capacity: 40,000 lbs (20,000 lbs per axle)
• Gear Ratio: 4.63:1
• Differential Type: Standard open (non-locking)
• Gear Design: Hypoid gearing for high torque capacity and quieter operation
• Carrier Type: Modular, top-load design for easy access and service

Applications & Benefits

• Extreme Torque Output: 4.63:1 gear ratio delivers maximum torque and traction, ideal for steep terrain and heavy loads
• Vocational-Grade Design: Tailored for construction, refuse, logging, and severe-service applications
• Durability & Strength: Built for continuous-duty cycles in punishing environments
• Easy to Service: Modular top-load carrier simplifies maintenance and reduces downtime
• OEM-Compatible: Direct replacement option for most heavy-duty truck platforms

At General Truck Parts, we stock both new and remanufactured Meritor MD2014X-463 differentials, rebuilt to original OEM specifications using rigorously tested components. Our reman units are fully inspected and dyno-tested for performance, reliability, and longevity—providing a cost-effective solution without sacrificing quality.

Need help confirming fitment, spline count, or suspension compatibility? Our experienced team offers fast, reliable support with VIN matching, cross-referencing, and expedited shipping. Request a Quote or call today to check availability, pricing, and shipping options.

Technical Specifications:

• Axle Model: MD2014X-463
• Configuration: Tandem rear-drive axle
• Gross Axle Weight Rating (GAWR): 40,000 lbs
• Gear Ratio: 4.63:1
• Differential Type: Open (non-locking)
• Input Spline Count: Typically 39 or 41 splines (verify per application)
• Lubrication: Oil-lubricated system (85W-140 gear oil recommended)
• Brake Compatibility: Compatible with 16.5″ S-cam drum and air disc brakes
• Suspension Compatibility: Works with air ride, multi-leaf, and vocational suspensions
• OEM Fitment: Used in Freightliner, Kenworth, Mack, International, Peterbilt, Volvo, and other Class 8 truck brands

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800-621-3914

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