Meritor MD2014X-411

The Meritor MD2014X-411 is a heavy-duty tandem rear-drive axle differential engineered for maximum torque and durability in severe-service environments. With a 4.11 gear ratio, this differential is ideal for Class 8 trucks and vocational vehicles that demand strong pulling power for steep grades, heavy payloads, off-road travel, or frequent stop-and-go applications like construction, refuse, or logging.

Part of the proven MD2014X series, the MD2014X-411 features hypoid gearing, a robust top-mount modular carrier design, and compatibility with a wide range of suspensions and brake systems. Built for long service life and reliability under the most challenging conditions, this differential delivers consistent performance and ease of service.

Key Features

• Model: MD2014X-411
• Series: Meritor MD2014X Tandem Rear Drive Axle
• Axle Rating: 40,000 lbs (20,000 lbs per axle)
• Gear Ratio: 4.11:1
• Differential Type: Open (non-locking)
• Carrier Assembly: Top-load, modular design for easy maintenance
• Gear Design: Hypoid gearing for smoother, quieter operation under heavy torque

Applications & Benefits

• High-Torque Gear Ratio: The 4.11:1 ratio is ideal for heavy hauling, off-road, and low-speed applications requiring maximum power
• Vocational-Grade Durability: Designed for construction, dump, refuse, logging, and severe-duty service
• Service-Friendly: Modular carrier simplifies maintenance and rebuilds
• OEM-Compatible: Built to match factory specifications for seamless installation
• Reliable in Harsh Conditions: Performs under extreme loads, temperature variations, and rough terrain

At General Truck Parts, we offer both new and remanufactured Meritor MD2014X-411 differentials, rebuilt to OEM standards using high-quality, tested components. Every reman unit is carefully inspected, dyno-tested, and backed by warranty for dependable performance and peace of mind.

Need help finding the right match? Our expert team can assist with VIN lookups, gear ratio verification, and fast shipping options. Request a Quote or contact us today to check availability and pricing.

Technical Specifications:

• Axle Model: MD2014X-411
• Configuration: Tandem rear-drive axle
• Gross Axle Weight Rating (GAWR): 40,000 lbs
• Gear Ratio: 4.11:1
• Differential Type: Standard open (non-locking)
• Input Spline Count: Typically 39 or 41 splines (verify per truck model)
• Lubrication: Oil-lubricated system (85W-140 gear oil recommended)
• Brake Compatibility: Compatible with 16.5″ S-cam drum brakes and air disc brakes
• Suspension Compatibility: Fits air ride, multi-leaf spring, and vocational suspensions
• OEM Applications: Used in Freightliner, Peterbilt, International, Kenworth, Mack, Volvo, and other major Class 8 truck platforms

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