View 13 Photos View 0 Videos Dana-Spicer D40-155H Cutoff for a 2020 Peterbilt 579 Newly Listed Contact for price (Used) 2020 Peterbilt 579, COMPLETE TANDEM CUTOFF- Part Number: 515579 / 10032384, Serial Number: HN07787568 / HN07787569, Make: Spicer, Model: D40-155H, Ratio: 2.79, Capacity: 19,000 Lbs, ... ConditionUsedRear End2.79 ratioFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2020Part Number515579 / 10032384Stock NumberP-504223 MLS Number14427191CategoryFront & Rear Cutoffs (Clip Cuts) Last Updated6/14/2026 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info