0 0 Mack Front Differential for a Mack CRDP150 Contact for price Mack CRDP150 R4.19 21387092 Reman Front Rear Diff. locker: YES, Core Charge: 0.00, Ratio: 4.19 ConditionUsedRear End4.19 ratioFits To Make(s)MackFits To Model(s)CRDP150Part Number21387092Stock Number21387092-AB MLS Number12917357CategoryDifferentials, Front Last Updated10/1/2025 LocationLouisville, KY, US Sold ByRiver City Truck Parts (855) 465-___ SHOWNUMBERCall Seller Email Seller Save More Info