View 0 Photos View 0 Videos Mack Front Differential Contact for price Mack CRDP150 R4.19 21387092 Reman Front Rear Diff., Core Charge: 0.00, Ratio: 4.19 ConditionUsedRear End4.19 ratioPart Number21387092Stock Number21387092-AB MLS Number12917357CategoryDifferentials, Front Last Updated8/20/2026 LocationLouisville, KY, US Sold ByRiver City Truck Parts (855) 465-___ SHOWNUMBERCall Seller Email Seller Save More Info