View 3 Photos View 0 Videos 2016 Eaton RSP41 Rear Differential for a Peterbilt 579 $395 USD (USED) Eaton RSP41 Ratio: 3.55 Side Gear Splines: 41 W/ Locker: NO Cast#: CANNOT VERIFY ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Stock Number25540335 MLS Number12450653CategoryDifferentials, Rear Last Updated9/12/2026 LocationCouncil Bluffs, IA, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos 2016 Eaton RSP41 Rear Differential for a Kenworth T680 $350 USD (USED) Eaton RSP41 Ratio: 2.64 Side Gear Splines: 41 W/ Locker: NO Cast#: 28E5 Ref# 511323 ConditionUsedFits To Make(s)KenworthFits To Model(s)T680Part Number511323Stock Number25432310 MLS Number12219184CategoryDifferentials, Rear Last Updated5/30/2026 LocationDes Moines, IA, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 3 Photos View 0 Videos 2007 Eaton RSP41 Rear Differential for a Peterbilt 340 $574 USD (USED) Eaton RSP41 Ratio: 5.29 Side Gear Splines: 41 W/ Locker: NO Cast#: 131812 ConditionUsedFits To Make(s)PeterbiltFits To Model(s)340Stock Number25731575 MLS Number13300156CategoryDifferentials, Rear Last Updated5/14/2026 LocationSpencer, IA, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 0 Videos 2006 Eaton RSP41 Rear Differential for a Peterbilt 335 $574 USD (USED) Eaton RSP41 Ratio: 5.29 Side Gear Splines: 41 W/ Locker: NO Cast#: 131812 ConditionUsedFits To Make(s)PeterbiltFits To Model(s)335Stock Number25737084 MLS Number13618453CategoryDifferentials, Rear Last Updated12/5/2025 LocationWinimac, IN, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos 2007 Eaton RSP41 Rear Differential for a Kenworth T600 $375 USD (USED) Eaton RSP41 Ratio: 3.36 Side Gear Splines: 41 W/ Locker: NO Cast#: 131812 ConditionUsedFits To Make(s)KenworthFits To Model(s)T600Stock Number25678366 MLS Number13059005CategoryDifferentials, Rear Last Updated8/22/2025 LocationSpencer, IA, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 7 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#: COULD NOT VERIFY ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Stock Number25419517 MLS Number12050396CategoryDifferentials, Rear Last Updated5/18/2025 LocationSioux Falls, SD, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 9 Photos View 0 Videos 2015 Eaton RSP41 Rear Differential for a Peterbilt 579 $350 USD (USED) Eaton RSP41 Ratio: 2.64 Side Gear Splines: 41 W/ Locker: NO Cast#: - COULD NOT VERIFY THE CAST NUMBER. ID TAG IDENTIFIED CRR. GOUGE ON LIP OF CASING. SPLINE GEARS ARE SHOWING WEAR. ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Stock Number25784650 MLS Number13541367CategoryDifferentials, Rear Last Updated4/26/2025 LocationSpencer, IA, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 0 Videos 2012 Eaton RSP41 Rear Differential for a Peterbilt 386 $350 USD (USED) Eaton RSP41 Ratio: 3.55 Side Gear Splines: 41 W/ Locker: NO Cast#: NA ConditionUsedFits To Make(s)PeterbiltFits To Model(s)386Stock Number25727120 MLS Number13287258CategoryDifferentials, Rear Last Updated3/9/2025 LocationWinimac, IN, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 0 Videos 2007 Eaton RSP41 Rear Differential for a Kenworth T800 $375 USD (USED) Eaton RSP41 Ratio: 3.36 Side Gear Splines: 41 W/ Locker: NO Cast#: 131812 ConditionUsedFits To Make(s)KenworthFits To Model(s)T800Stock Number25671167 MLS Number12973928CategoryDifferentials, Rear Last Updated3/8/2025 LocationWinimac, IN, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos 2010 Eaton RSP41 Rear Differential for a Peterbilt 340 $574 USD (USED) Eaton RSP41 Ratio: 4.63 Side Gear Splines: 41 W/ Locker: NO Cast#: 131812 ConditionUsedFits To Make(s)PeterbiltFits To Model(s)340Stock Number25730326 MLS Number13313232CategoryDifferentials, Rear Last Updated1/6/2025 LocationSpencer, IA, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 0 Videos 2009 Eaton RSP41 Rear Differential for a Kenworth T660 $350 USD (USED) Eaton RSP41 Ratio: 2.64 Side Gear Splines: 41 W/ Locker: NO Cast#: CANNOT VERIFY ConditionUsedFits To Make(s)KenworthFits To Model(s)T660Stock Number25547977 MLS Number12464880CategoryDifferentials, Rear Last Updated8/29/2024 LocationCouncil Bluffs, IA, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 7 Photos View 0 Videos 2016 Eaton RSP41 Rear Differential for a Peterbilt 579 $350 USD (USED) Eaton RSP41 Ratio: 3.08 Side Gear Splines: 41 W/ Locker: NO Cast#: 511326 Ref# HN04774394 ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Part NumberHN04774394Stock Number25504355 MLS Number12384612CategoryDifferentials, Rear Last Updated8/29/2024 LocationSioux Falls, SD, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 3 Photos View 0 Videos 2010 Eaton RSP41 Rear Differential for a Peterbilt 387 $375 USD (USED) Eaton RSP41 Ratio: 3.36 Side Gear Splines: 41 W/ Locker: NO Cast#: 131812 ConditionUsedFits To Make(s)PeterbiltFits To Model(s)387Stock Number25679976 MLS Number13059014CategoryDifferentials, Rear Last Updated8/20/2024 LocationCouncil Bluffs, IA, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos 2013 Eaton RSP41 Rear Differential for a Kenworth T800 $375 USD (USED) Eaton RSP41 Ratio: 3.36 Side Gear Splines: 41 W/ Locker: NO Cast#: 131812 BOLTS BROKEN OFF IN YOUKE WILL NEED EXTRACTED OR YOKE WILL NEED TO BE REPLACED ConditionUsedFits To Make(s)KenworthFits To Model(s)T800Stock Number26042949 MLS Number14610078CategoryDifferentials, Rear Last Updated9/17/2026 LocationKansas City, MO, 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 $395 USD (USED) Eaton RSP41 Ratio: 3.55 Side Gear Splines: 41 W/ Locker: NO Cast#: 131812 ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Stock Number26068069 MLS Number14609953CategoryDifferentials, Rear Last Updated9/17/2026 LocationWinimac, IN, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos 2012 Eaton RSP41 Rear Differential for a Kenworth T660 $375 USD (USED) Eaton RSP41 Ratio: 3.36 Side Gear Splines: 41 W/ Locker: NO Cast#: 131812 ConditionUsedFits To Make(s)KenworthFits To Model(s)T660Stock Number25977374 MLS Number14327430CategoryDifferentials, Rear Last Updated8/30/2026 LocationKansas City, MO, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos 2002 Eaton RSP41 Rear Differential for a Peterbilt 378 $350 USD (USED) Eaton RSP41 Ratio: 3.08 Side Gear Splines: 41 W/ Locker: NO Cast#: 129543 Ref# N/A ConditionUsedFits To Make(s)PeterbiltFits To Model(s)378Part NumberN/AStock Number25979133 MLS Number14327398CategoryDifferentials, Rear Last Updated8/30/2026 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 RSP41 Rear Differential for a Peterbilt 579 $415 USD (USED) Eaton RSP41 Ratio: 3.25 Side Gear Splines: 41 W/ Locker: NO Cast#: - ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Stock Number26052862 MLS Number14558540CategoryDifferentials, Rear Last Updated8/28/2026 LocationWinimac, IN, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos 2009 Eaton RSP41 Rear Differential for a Peterbilt 388 $495 USD (USED) Eaton RSP41 Ratio: 3.90 Side Gear Splines: 41 W/ Locker: NO Cast#: 511331 Ref# 511331 ConditionUsedFits To Make(s)PeterbiltFits To Model(s)388Part Number511331Stock Number25960844 MLS Number14242048CategoryDifferentials, Rear Last Updated8/12/2026 LocationSpencer, IA, 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 $574 USD (USED) Eaton RSP41 Ratio: 2.85 Side Gear Splines: 41 W/ Locker: NO Cast#: - ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Stock Number25967226 MLS Number14267982CategoryDifferentials, Rear Last Updated8/12/2026 LocationWinimac, IN, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos 2018 Eaton RSP41 Rear Differential for a Peterbilt 348 $574 USD (USED) Eaton RSP41 Ratio: 5.29 Side Gear Splines: 41 W/ Locker: NO Cast#: 511336 ConditionUsedFits To Make(s)PeterbiltFits To Model(s)348Stock Number26031554 MLS Number14502054CategoryDifferentials, Rear Last Updated7/23/2026 LocationSpencer, IA, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos 2015 Eaton RSP41 Rear Differential for a Peterbilt 365 $574 USD (USED) Eaton RSP41 Ratio: 4.33 Side Gear Splines: 41 W/ Locker: NO Cast#: 511333 ConditionUsedFits To Make(s)PeterbiltFits To Model(s)365Stock Number25839567 MLS Number13743158CategoryDifferentials, Rear Last Updated7/23/2026 LocationSpencer, IA, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos 2011 Eaton RSP41 Rear Differential for a Peterbilt 386 $350 USD (USED) Eaton RSP41 Ratio: 2.64 Side Gear Splines: 41 W/ Locker: NO Cast#: NA ConditionUsedFits To Make(s)PeterbiltFits To Model(s)386Stock Number25823442 MLS Number13860859CategoryDifferentials, Rear Last Updated4/30/2026 LocationWinimac, IN, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos 2016 Eaton RSP41 Rear Differential for a Freightliner Cascadia $415 USD (USED) Eaton RSP41 Ratio: 3.25 Side Gear Splines: 41 W/ Locker: NO Cast#: 130946 ConditionUsedFits To Make(s)FreightlinerFits To Model(s)CascadiaStock Number25967870 MLS Number14301524CategoryDifferentials, Rear Last Updated4/10/2026 LocationKansas City, MO, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos 2007 Eaton RSP41 Rear Differential for a Kenworth T600 $415 USD (USED) Eaton RSP41 Ratio: 3.25 Side Gear Splines: 41 W/ Locker: NO Cast#: 131812 ConditionUsedFits To Make(s)KenworthFits To Model(s)T600Stock Number25938591 MLS Number14194769CategoryDifferentials, Rear Last Updated3/8/2026 LocationKansas City, MO, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info