View 1 Photo View 0 Videos 2005 Eaton RSP40 Rear Differential for a Peterbilt 379 $795 USD USED EATON RSP40 REAR REAR DIFFERENTIAL/3.55 RATIO ConditionUsedRear End3.55 ratioFits To Make(s)PETERBILTFits To Model(s)379Stock Number90457 MLS Number12835324CategoryDifferentials, Rear Last Updated10/2/2026 LocationCrandall, TX, US Sold ByTim Jordan's Truck Parts Inc. (833) 359-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos 2009 Eaton RSP40 Rear Differential for a Peterbilt 387 $795 USD USED EATON RSP40 REAR REAR DIFFERENTIAL/3.55 RATIO ConditionUsedRear End3.55 ratioFits To Make(s)PETERBILTFits To Model(s)387Stock Number90595 MLS Number12835419CategoryDifferentials, Rear Last Updated10/2/2026 LocationCrandall, TX, US Sold ByTim Jordan's Truck Parts Inc. (833) 359-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos 2008 Eaton RSP40 Rear Differential for a Peterbilt 386 $795 USD USED EATON RSP40 REAR REAR DIFFERENTIAL/3.25 RATIO ConditionUsedRear End3.25 ratioFits To Make(s)PETERBILTFits To Model(s)386Stock Number90725 MLS Number12835516CategoryDifferentials, Rear Last Updated10/2/2026 LocationCrandall, TX, US Sold ByTim Jordan's Truck Parts Inc. (833) 359-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos 2003 Eaton RSP40 Rear Differential for a Peterbilt 379 $795 USD USED EATON RSP40 REAR REAR DIFFERENTIAL/3.55 RATIO ConditionUsedRear End3.55 ratioFits To Make(s)PETERBILTFits To Model(s)379Stock Number92817 MLS Number12837008CategoryDifferentials, Rear Last Updated10/2/2026 LocationCrandall, TX, US Sold ByTim Jordan's Truck Parts Inc. (833) 359-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos Eaton RSP40 Rear Differential $1,215 USD RSP40-336 - Reconditioned ConditionRemanufacturedRear End3.36 ratioStock NumberRSP40-336-REC MLS Number14028853CategoryDifferentials, Rear Last Updated9/30/2026 LocationFresno, CA, US Sold ByGarabedian Equipment (855) 794-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos Eaton RSP40 Rear Differential $1,350 USD RSP40-342 - Rebuilt ConditionRemanufacturedRear End3.42 ratioStock NumberRSP40-342-REB MLS Number13963946CategoryDifferentials, Rear Last Updated9/30/2026 LocationFresno, CA, US Sold ByGarabedian Equipment (855) 794-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos Eaton RSP40 Rear Differential $1,350 USD RSP40-336 - Rebuilt ConditionRemanufacturedRear End3.36 ratioStock NumberRSP40-336-REB MLS Number13963945CategoryDifferentials, Rear Last Updated9/30/2026 LocationFresno, CA, US Sold ByGarabedian Equipment (855) 794-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton RSP40 Rear Differential $550 USD 3.25, ConditionUsedStock NumberREAR-2358 MLS Number14633403CategoryDifferentials, Rear Last Updated9/30/2026 LocationLAKEVILLE, MN, US Sold ByManders Diesel (866) 314-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos 2010 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 ConditionUsedFits To Make(s)PeterbiltFits To Model(s)387Stock Number25611481 MLS Number12709683CategoryDifferentials, Rear Last Updated9/30/2026 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 RSP40 Rear Differential for a Kenworth T600 $395 USD (USED) Eaton RSP40 Ratio: 3.55 Side Gear Splines: 41 W/ Locker: NO Cast#: 131812 ConditionUsedFits To Make(s)KenworthFits To Model(s)T600Stock Number25642088 MLS Number12855891CategoryDifferentials, Rear Last Updated9/25/2026 LocationWinimac, IN, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 3 Photos View 0 Videos 1999 Eaton RSP40 Rear Differential for a Peterbilt 379 $395 USD (USED) Eaton RSP40 Ratio: 3.55 Side Gear Splines: 41 W/ Locker: NO Cast#: - ConditionUsedFits To Make(s)PeterbiltFits To Model(s)379Stock Number25772418 MLS Number13480720CategoryDifferentials, Rear Last Updated9/25/2026 LocationWinimac, IN, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton RSP40 Rear Differential $595 USD INSPECTED TAKEOUT RSP40 6.50. 90 DAY PARTS ONLY WARRANTY. EXTENDED WARRANTY AVAILABLE, Axle Spline Count: 41, Serial#: 62366, Core Charge: EXCHANGE, Ratio: 6.50 ConditionUsedRear End6.50 ratioPart Number62366Stock Number62366 MLS Number14330561CategoryDifferentials, Rear Last Updated9/24/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 0 Videos 2014 Eaton RSP40 Rear Differential for a Peterbilt 579 $415 USD (USED) Eaton RSP40 Ratio: 3.25 Side Gear Splines: 41 W/ Locker: NO Cast#: 131812 ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Stock Number25801519 MLS Number13605906CategoryDifferentials, Rear Last Updated9/18/2026 LocationWinimac, IN, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 3 Photos View 0 Videos Eaton RSP40 Rear Differential $1,295 USD REBUILT RSP40 3.70. 12 MONTH PARTS AND LABOR WARRANTY. EXTENDED WARRANTY AVAILABLE., Axle Spline Count: 41, Serial#: 62587, Core Charge: EXCHANGE, Ratio: 3.70 ConditionRemanufacturedRear End3.70 ratioPart Number62587Stock Number62587 MLS Number14529833CategoryDifferentials, Rear Last Updated9/13/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos Eaton RSP40 Rear Differential $1,350 USD RSP40-264 - Rebuilt, ConditionRemanufacturedRear End2.64 ratioStock NumberRSP40-264-REB MLS Number13963938CategoryDifferentials, Rear Last Updated9/12/2026 LocationFresno, CA, US Sold ByGarabedian Equipment (855) 794-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 3 Photos View 0 Videos 2014 Eaton RSP40 Rear Differential $395 USD (USED) Eaton RSP40 Ratio: 3.55 Side Gear Splines: 41 W/ Locker: NO Cast#: 131812 MISSING YOKE NUT ConditionUsedFits To Make(s)KenworthFits To Model(s)T680Stock Number25670945 MLS Number12972206CategoryDifferentials, Rear Last Updated9/12/2026 LocationWinimac, IN, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton RSP40 Rear Differential for a 2013 Peterbilt 389 $550 USD T.O RSP40 3.90 RATIO WILL INSPECT IN OUR GEAR SHOP, 90 DAY WARRANTY., Axle Spline Count: GET, Serial#: GET, Core Charge: 250.00, Ratio: 390 ConditionUsedFits To Make(s)PeterbiltFits To Model(s)389Will Fit Year(s)2013Part NumberGETStock Number82126-3 MLS Number14588139CategoryDifferentials, Rear Last Updated9/5/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 3 Photos View 0 Videos Eaton RSP40 Rear Differential $1,295 USD REBUILT RSP40 3.25. 12 MONTH PARTS AND LABOR WARRANTY. EXTENDED WARRANTY AVAILABLE, Axle Spline Count: 41, Serial#: 62618, Core Charge: EXCHANGE 250 CORE, Ratio: 3.25 ConditionRemanufacturedPart Number62618Stock Number62618 MLS Number14588136CategoryDifferentials, Rear Last Updated9/5/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 3 Photos View 0 Videos Eaton RSP40 Rear Differential $1,295 USD REBUILT RSP40 3.90. 12 MONTH PARTS AND LABOR WARRANTY. EXTENDED WARRANTY AVAILABLE, Axle Spline Count: 41, Serial#: 62610, Core Charge: EXCHANGE CRITICAL CORE 250.00, Ratio: 3.90 ConditionRemanufacturedPart Number62610Stock Number62610 MLS Number14580107CategoryDifferentials, Rear Last Updated9/2/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos Eaton RSP40 Rear Differential $600 USD Good used Eaton RSP40 Rear, Rear Differential Assembly. 3.55 Ratio. 90 day guarantee for swap or refund Quantity2ConditionUsedRear End3.55 ratioStock NumberRyd RSP40/3.55/41 MLS Number10643512CategoryDifferentials, Rear Last Updated8/26/2026 LocationFitchburg, MA, US Sold ByRydemore Heavy Duty Truck Parts (888) 519-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos 2005 Eaton RSP40 Rear Differential for a Kenworth T600 $395 USD (USED) Eaton RSP40 Ratio: 3.55 Side Gear Splines: 41 W/ Locker: NO Cast#: 131812 ConditionUsedFits To Make(s)KenworthFits To Model(s)T600Stock Number25808327 MLS Number13631850CategoryDifferentials, Rear Last Updated8/23/2026 LocationKansas City, MO, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos Eaton RSP40 Rear Differential $500 USD Good used Eaton RSP40 Rear, Rear Differential Assembly. 3.25 Ratio. 90 day guarantee for swap or refund ConditionUsedRear End3.25 ratioStock NumberRyd RSP40/3.25/41 MLS Number10806818CategoryDifferentials, Rear Last Updated8/21/2026 LocationFitchburg, MA, US Sold ByRydemore Heavy Duty Truck Parts (888) 519-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 3 Photos View 0 Videos 2015 Eaton RSP40 Rear Differential for a Kenworth T680 $415 USD (USED) Eaton RSP40 Ratio: 3.25 Side Gear Splines: 41 W/ Locker: NO Cast#: 515327 ConditionUsedFits To Make(s)KenworthFits To Model(s)T680Stock Number25743572 MLS Number13446082CategoryDifferentials, Rear Last Updated8/20/2026 LocationSpencer, IA, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton RSP40 Rear Differential $1,295 USD REBUILT RSP40 3.25. 12 MONTH PARTS AND LABOR WARRANTY. EXTENDED WARRANTY AVAILABLE, Axle Spline Count: 41, Serial#: 62597, Core Charge: EXCHANGE, Ratio: 3.25 ConditionRemanufacturedPart Number62597Stock Number62597 MLS Number14529835CategoryDifferentials, Rear Last Updated8/7/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton RSP40 Rear Differential for a 2006 Kenworth T600 $795 USD RSP40 3.36 GOOD INSPECTED DIFFERENTIAL ASSEMBLY. 90 DAY WARRANTY, Axle Spline Count: 41, Serial#: NA, Core Charge: 250.00, Ratio: 3.36 ConditionUsedFits To Make(s)KenworthFits To Model(s)T600Will Fit Year(s)2006Part NumberRSP40Stock Number111622-18 MLS Number11987671CategoryDifferentials, Rear Last Updated7/25/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info