MDL20-145 | Meritor Forward Rear Differential | MDL40-14X | Full Locker | DPX Reman

MDL20-145 | Meritor Forward Rear Differential with Full Driver Controlled Locker — Remanufactured by DPX (40K GAWR)

Heavy-duty forward-rear tandem differential with integrated power divider **and full driver-controlled differential lock** for maximum traction. Remanufactured in Mansfield, Ohio by Discount Parts Exchange - DPX. The Meritor MDL20-145 (also covers MDL40-14X series) is the forward position unit ideal for severe service. Rebuilt to your exact ratio with upgraded components. Popular in Cummins-Meritor drivetrain applications. Also referenced as MDL20145 (no dash).

Call DPX to confirm: 419-522-3320.

Highlights

• Model: MDL20-145 / MDL40-14X (forward rear with full driver controlled locker)
• Axle Family: Meritor / Rockwell 20-145 (Cummins-Meritor)
• GAWR: 40,000 lb
• Design: Single-reduction; matched ring & pinion; integrated power divider with full driver-controlled differential lock
• Input Shaft: 3297-D-1616 – 2.390" 46 spline
• Axle Gears: 2234-G-1437 – 2.100" 41 spline
• Input Nut: 40X-1233 or KIT2826
• Input Seal: A1-1205-X-2728 (Multiple-Lip Seal) Requires Meritor seal driver 2728T1 and sleeve driver 2728T2 for proper installation
  • DPX PRO TIP: We replace with R945007 seal, make sure to remove the wear sleeve from the end yoke, failure to do so will burn the seal
• Power Divider Upgrade: All units upgraded to redesigned KIT2936 cover to reduce leaks common on original design
• Position: Forward-rear (drives rear axle via inter-axle shaft)
• Applications: Dump trucks, heavy haul, construction, logging, and severe service Cummins-powered fleets

Available Gear Ratios & Gearset Part Numbers

What’s Included

• Remanufactured Meritor MDL20-145 / MDL40-14X forward rear carrier assembly with full driver controlled locker, rebuilt to your requested ratio by DPX
• 12-month, unlimited-mileage parts-only warranty
• Tech support from DPX during install and initial run-in

Fitment Notes

• Fits tandem-drive trucks equipped with the Meritor / Rockwell 20-145 axle family (Cummins-Meritor applications)
• Forward-rear position with full driver controlled differential lock; pairs with matching rear-rear carrier
• Verify ratio and spline count before ordering

Image Disclaimer

Photos are representative; final appearance may vary by ratio and casting revision.

Call to Order

Call Discount Parts Exchange - DPX for pricing and availability: 419-522-3320

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