5 0 Meritor-Rockwell RR26160 Rear Differential for a 2018 Peterbilt 579 Contact for price (Used) 2018 Peterbilt 579, COMPLETE DIFFERENTIAL GEARS ONLY- Part Number: 3200S1891, Serial Number: TBD, Make: Meritor, Model: RR26160, Ratio: 2.50, Capacity: 22,700 Lbs, Reference images... ConditionUsedRear End2.50 ratioFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2018Part Number3200S1891Stock NumberP-113680 MLS Number13968778CategoryDifferentials, Rear Last Updated11/6/2025 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info