View 0 Photos View 0 Videos Mack Front Differential Recently Updated Contact for price Mack CRDP150 R4.19 21387092 Reman Front Rear Diff. - Ratio: 4.19;Locker?: YES, Core Charge: 0.00 ConditionUsedRear End4.19 ratioPart Number21387092Stock Number21387092-AB MLS Number12917357CategoryDifferentials, Front Last Updated8/12/2026 LocationLouisville, KY, US Sold ByRiver City Truck Parts (855) 465-___ SHOWNUMBERCall Seller Email Seller Save More Info