View 5 Photos View 0 Videos 2019 Eaton RSP40 Rear Differential for a Peterbilt 579 $395 USD (USED) Eaton RSP40 Ratio: 3.42 Side Gear Splines: 41 W/ Locker: NO Cast#: NONE ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Stock Number25694565 MLS Number13114268CategoryDifferentials, Rear Last Updated6/6/2026 LocationSioux Falls, SD, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 3 Photos View 0 Videos 2019 Eaton RSP40 Rear Differential for a Peterbilt 579 $395 USD (USED) Eaton RSP40 Ratio: 3.42 Side Gear Splines: 41 W/ Locker: NO Cast#: NONE Ref# 7012393 ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Part Number7012393Stock Number25712985 MLS Number13230922CategoryDifferentials, Rear Last Updated1/16/2026 LocationSioux Falls, SD, US Sold ByVander Haag's Inc. (855) 370-___ 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 5 Photos View 0 Videos 2014 Eaton RSP40 Rear Differential for a Peterbilt 386 $415 USD (USED) Eaton RSP40 Ratio: 3.25 Side Gear Splines: 41 W/ Locker: NO Cast#: N/A Ref# RSP40325 ConditionUsedFits To Make(s)PeterbiltFits To Model(s)386Part NumberRSP40325Stock Number25825723 MLS Number13699473CategoryDifferentials, Rear Last Updated9/6/2025 LocationSioux Falls, SD, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 6 Photos View 0 Videos 2009 Eaton RSP40 Rear Differential for a Peterbilt 386 $317 USD (USED) Eaton RSP40 Ratio: 3.70 Side Gear Splines: 41 W/ Locker: NO Cast#: 131812 Ref# 511330 ConditionUsedFits To Make(s)PeterbiltFits To Model(s)386Part Number511330Stock Number25821383 MLS Number13684586CategoryDifferentials, Rear Last Updated7/4/2025 LocationSioux Falls, SD, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 7 Photos View 0 Videos 2013 Eaton RSP40 Rear Differential for a Peterbilt 337 $574 USD (USED) Eaton RSP40 Ratio: 4.88 Side Gear Splines: 41 W/ Locker: NO Cast#: 131812 Ref# 1-2235058 ConditionUsedFits To Make(s)PeterbiltFits To Model(s)337Part Number1-2235058Stock Number25498034 MLS Number12338728CategoryDifferentials, Rear Last Updated1/12/2025 LocationSioux Falls, SD, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 3 Photos View 0 Videos 2018 Eaton RSP40 Rear Differential for a Peterbilt 579 $395 USD (USED) Eaton RSP40 Ratio: 3.42 Side Gear Splines: 41 W/ Locker: NO Cast#: - Ref# 515354 ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Part Number515354Stock Number25696057 MLS Number13156706CategoryDifferentials, Rear Last Updated12/14/2024 LocationSioux Falls, SD, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 5 Photos View 0 Videos 2008 Eaton RSP40 Rear Differential for a Peterbilt 389 $360 USD (USED) Eaton RSP40 Ratio: 3.25 Side Gear Splines: 41 W/ Locker: NO Cast#: 131812 ConditionUsedFits To Make(s)PeterbiltFits To Model(s)389Stock Number25677741 MLS Number13028671CategoryDifferentials, Rear Last Updated8/8/2024 LocationSioux Falls, SD, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 7 Photos View 0 Videos 2012 Eaton RSP40 Rear Differential for a Peterbilt 386 $395 USD (USED) Eaton RSP40 Ratio: 3.42 Side Gear Splines: 41 W/ Locker: NO Cast#: 131812 Ref# 131812 ConditionUsedFits To Make(s)PeterbiltFits To Model(s)386Part Number131812Stock Number25667668 MLS Number12988840CategoryDifferentials, Rear Last Updated7/27/2024 LocationSioux Falls, SD, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 0 Videos 2013 Eaton RSP40 Rear Differential for a Peterbilt 579 $350 USD (USED) Eaton RSP40 Ratio: 2.64 Side Gear Splines: 41 W/ Locker: NO ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Stock Number25651454 MLS Number12881756CategoryDifferentials, Rear Last Updated5/20/2024 LocationSioux Falls, SD, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 6 Photos View 0 Videos 2009 Eaton RSP40 Rear Differential for a Peterbilt 386 $325 USD (USED) Eaton RSP40 Ratio: 3.25 Side Gear Splines: 41 W/ Locker: NO Cast#: 131812 Ref# N/A ConditionUsedFits To Make(s)PeterbiltFits To Model(s)386Part NumberN/AStock Number25623017 MLS Number12784062CategoryDifferentials, Rear Last Updated4/19/2024 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 RSP40 Rear Differential for a Kenworth T680 Newly Listed $415 USD (USED) Eaton RSP40 Ratio: 3.25 Side Gear Splines: 41 W/ Locker: NO Cast#: 08D4 Ref# 511327 ConditionUsedFits To Make(s)KenworthFits To Model(s)T680Part Number511327Stock Number26025948 MLS Number14489434CategoryDifferentials, Rear Last Updated7/17/2026 LocationSioux Falls, SD, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos 2005 Eaton RSP40 Rear Differential for a Peterbilt 387 $395 USD (USED) Eaton RSP40 Ratio: 3.55 Side Gear Splines: 41 W/ Locker: NO Cast#: 131812 Ref# 511329 ConditionUsedFits To Make(s)PeterbiltFits To Model(s)387Part Number511329Stock Number25956772 MLS Number14306296CategoryDifferentials, Rear Last Updated4/12/2026 LocationSioux Falls, SD, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos 2009 Eaton RSP40 Rear Differential for a Peterbilt 389 $395 USD (USED) Eaton RSP40 Ratio: 3.55 Side Gear Splines: 41 W/ Locker: NO Cast#: N Ref# N/A ConditionUsedFits To Make(s)PeterbiltFits To Model(s)389Part NumberN/AStock Number25868608 MLS Number13906887CategoryDifferentials, Rear Last Updated3/19/2026 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 RSP40 Rear Differential for a Kenworth T680 $350 USD (USED) Eaton RSP40 Ratio: 2.64 Side Gear Splines: 41 W/ Locker: NO Cast#: 131812 Ref# 1419920 ConditionUsedFits To Make(s)KenworthFits To Model(s)T680Part Number1419920Stock Number25935862 MLS Number14146297CategoryDifferentials, Rear Last Updated3/8/2026 LocationSioux Falls, SD, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos 2003 Eaton RSP40 Rear Differential for a Peterbilt 387 $495 USD (USED) Eaton RSP40 Ratio: 3.90 Side Gear Splines: 41 W/ Locker: NO Cast#: 131812 ConditionUsedFits To Make(s)PeterbiltFits To Model(s)387Stock Number25881214 MLS Number13927673CategoryDifferentials, Rear Last Updated2/11/2026 LocationSioux Falls, SD, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos 2009 Eaton RSP40 Rear Differential for a Peterbilt 386 $375 USD (USED) Eaton RSP40 Ratio: 3.36 Side Gear Splines: 41 W/ Locker: NO Cast#: 09007 ConditionUsedFits To Make(s)PeterbiltFits To Model(s)386Stock Number25919071 MLS Number14095770CategoryDifferentials, Rear Last Updated1/17/2026 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 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