View 6 Photos View 0 Videos 2016 Eaton RSP40 Rear Differential for a Peterbilt 579 $899 USD RSP40 3.55 Inspected Takeout +$250 Core, Capacity: 40K, Ratio: 3.55, Yoke: 1710, Side Gear: 41 Spline, Input: 39 Spline ConditionUsedRear End3.55 ratioFits To Make(s)PETERBILTFits To Model(s)579Stock Number14929 MLS Number13806984CategoryDifferentials, Rear Last Updated12/16/2025 LocationSpokane Valley, WA, US Sold ByHigh Mountain Horsepower (833) 913-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 3 Photos View 0 Videos 2014 Eaton RSP41 Rear Differential for a Peterbilt 579 $795 USD RSP41 3.42 Takeout +$150 core, SN: HN04250094, OEM# C2-1C13GB2000000000 ConditionUsedRear End3.42 ratioFits To Make(s)PETERBILTFits To Model(s)579Stock Number11259 MLS Number13160121CategoryDifferentials, Rear Last Updated12/16/2025 LocationSpokane Valley, WA, US Sold ByHigh Mountain Horsepower (833) 913-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 3 Photos View 0 Videos 2016 Eaton RSP40-3.08 Rear Differential for a Peterbilt 579 $995 USD RSP40 3.08 Takeout +$150 Core, Take off from a low mile, non-wrecked truck (31197 MI). ConditionUsedRear End3.08 ratioFits To Make(s)PETERBILTFits To Model(s)579Stock Number10802 MLS Number13071026CategoryDifferentials, Rear Last Updated12/16/2025 LocationSpokane Valley, WA, US Sold ByHigh Mountain Horsepower (833) 913-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 7 Photos View 0 Videos 2019 Eaton RSP40 Rear Differential for a Peterbilt 579 $375 USD (USED) Eaton RSP40 Ratio: 3.36 Side Gear Splines: 41 W/ Locker: NO Cast#: N/A Ref# N/A ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Part NumberN/AStock Number25781167 MLS Number13543451CategoryDifferentials, Rear Last Updated11/7/2025 LocationSioux Falls, SD, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos 2014 Eaton RSP41 Rear Differential for a Peterbilt 579 $375 USD (USED) Eaton RSP41 Ratio: 3.36 Side Gear Splines: 41 W/ Locker: NO Cast#: N/A Ref# N/A ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Part NumberN/AStock Number25887846 MLS Number13974676CategoryDifferentials, Rear Last Updated1/9/2026 LocationSioux Falls, SD, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos 2016 Eaton S23-190 Rear Differential for a Peterbilt 579 $375 USD (USED) Eaton S23-190 Ratio: 2.69 Side Gear Splines: 46 W/ Locker: YES Cast#: N/A Ref# N/A ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Part NumberN/AStock Number25888290 MLS Number13954801CategoryDifferentials, Rear Last Updated1/9/2026 LocationSioux Falls, SD, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos 2015 Eaton R23-190 Rear Differential for a Peterbilt 579 $375 USD (USED) Eaton R23-190 Ratio: 2.53 Side Gear Splines: 46 W/ Locker: NO Cast#: Could Not Verify Ref# N/A ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Part NumberN/AStock Number25857893 MLS Number13790523CategoryDifferentials, Rear Last Updated12/31/2025 LocationSioux Falls, SD, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos 2017 Eaton RSP41 Rear Differential for a Peterbilt 579 $350 USD (USED) Eaton RSP41 Ratio: 3.08 Side Gear Splines: 41 W/ Locker: NO Cast#: CANNOT VERIFY ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Stock Number25871754 MLS Number13860785CategoryDifferentials, Rear Last Updated11/26/2025 LocationCouncil Bluffs, IA, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos 2016 Eaton R40-145 Rear Differential for a Peterbilt 579 $750 USD (USED) Eaton R40-145 Ratio: 3.42 Side Gear Splines: 39 W/ Locker: NO Cast#: 134154 ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Stock Number25899399 MLS Number13992119CategoryDifferentials, Rear Last Updated11/21/2025 LocationSpencer, IA, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos 2016 Eaton RSP40 Rear Differential for a Peterbilt 579 $795 USD USED EATON RSP40 REAR DIFFERENTIAL ASSEMBLY - RATIO: 3.36 ConditionUsedRear End3.36 ratioFits To Make(s)PETERBILTFits To Model(s)579Stock Number93098 MLS Number12837211CategoryDifferentials, Rear Last Updated9/30/2025 LocationCrandall, TX, US Sold ByTim Jordan's Truck Parts Inc. (833) 359-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos 2023 Eaton RSP41 Rear Differential for a Peterbilt 579 $795 USD USED EATON RSP41 (REAR) REAR DIFFERENTIAL, RATIO 3.55 ConditionUsedRear End3.55 ratioFits To Make(s)PETERBILTFits To Model(s)579Stock Number98650 MLS Number13344824CategoryDifferentials, Rear Last Updated8/15/2025 LocationCrandall, TX, US Sold ByTim Jordan's Truck Parts Inc. (833) 359-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos 2016 Eaton RSP40 Rear Differential for a Peterbilt 579 $795 USD USED EATON RSP40 REAR DIFFERENTIAL ASSEMBLY - RATIO: 2.64 ConditionUsedRear End2.64 ratioFits To Make(s)PETERBILTFits To Model(s)579Stock Number84830 MLS Number12832171CategoryDifferentials, Rear Last Updated8/15/2025 LocationCrandall, TX, US Sold ByTim Jordan's Truck Parts Inc. (833) 359-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos 2016 Eaton RSP40 Rear Differential for a Peterbilt 579 $415 USD (USED) Eaton RSP40 Ratio: 3.25 Side Gear Splines: 41 W/ Locker: NO Cast#: N/A Ref# N/A ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Part NumberN/AStock Number25830535 MLS Number13752116CategoryDifferentials, Rear Last Updated8/16/2025 LocationSioux Falls, SD, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos Eaton DSP40 Rear Differential for a 2015 Peterbilt 579 Contact for price DOUBLE LOCKS, 3.55 RATIO, 40,000LBS,, Ratio: 3.55 ConditionUsedRear End3.55 ratioFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2015Stock Number2826-PETE-4 MLS Number13341554CategoryDifferentials, Rear Last Updated3/7/2025 LocationSTURGEON COUNTY, AB, Canada Sold ByBadger Truck Parts Ltd. (855) 624-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos 2007 Eaton RSP40 Rear Differential for a Peterbilt 387 $795 USD USED EATON RSP40 REAR DIFFERENTIAL ASSEMBLY - RATIO: 3.55 ConditionUsedRear End3.55 ratioFits To Make(s)PETERBILTFits To Model(s)387Stock Number57994 MLS Number12820534CategoryDifferentials, Rear Last Updated5/1/2024 LocationCrandall, TX, US Sold ByTim Jordan's Truck Parts Inc. (833) 359-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos Eaton RSP40 Rear Differential for a 2014 Peterbilt 579 $895 USD Good low mile diff 90 day warr. Ext warr available, Ratio: 3.36 ConditionUsedRear End3.36 ratioFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2014Stock Number3615-10 MLS Number9001110CategoryDifferentials, Rear Last Updated12/17/2023 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos 2015 Eaton RSP40 Rear Differential for a Peterbilt 579 Contact for price GTO ConditionUsedRear End3.08 ratioFits To Make(s)PETERBILTFits To Model(s)579Stock Number26936 MLS Number12222818CategoryDifferentials, Rear Last Updated12/15/2025 LocationDouglas, GA, US Sold ByAmerican Truck Parts, Inc. (877) 254-___ SHOWNUMBERCall Seller Email Seller Save More Info