View 1 Photo View 0 Videos Eaton RSP40 Rear Differential for a 2003 Peterbilt 379 $695 USD RSP40 3.55 RATIO USED TAKEOUT. WILL INSPECT IN OUR GEARSHOP 90 DAY WARRANTY., Ratio: 355 ConditionUsedRear End3.55 ratioFits To Make(s)PeterbiltFits To Model(s)379Will Fit Year(s)2003Stock Number51126-5 MLS Number14424368CategoryDifferentials, Rear Last Updated6/13/2026 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 $495 USD RSP40 3.55 INSPECTED TAKE OUT 90 DAY PARTS ONLY WARRANTY. EXTENDED WARRANTY AVAILABLE, Axle Spline Count: 41., Serial#: 14268, Core Charge: EXCHANGE, Ratio: 3.55 ConditionUsedPart Number14268Stock Number14268 MLS Number13183630CategoryDifferentials, Rear Last Updated6/13/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ 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 Updated6/11/2026 LocationSpencer, IA, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 7 Photos View 0 Videos 2016 Eaton RSP40 Rear Differential for a Kenworth T680 $500 USD RSP40 - 3.42 Ratio - Pullout - P/N 515354 - Grade A - Unit is in good condition. ConditionUsedRear End3.42 ratioFits To Make(s)KENWORTHFits To Model(s)T680Stock NumberUPS-277185-18 MLS Number14142998CategoryDifferentials, Rear Last Updated6/3/2026 LocationFresno, CA, US Sold ByGarabedian Equipment (855) 794-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 6 Photos View 0 Videos 2016 Eaton RSP40 Rear Axle Housing for a Kenworth T680 $1,350 USD Refurbished Eaton RSP40 Rear Axle Housing, 16 Hole Flange, 53.5" Inner Flange To Inner Flange, P/N 321318. Removed From 2016 Kenworth AG400L Suspension. ConditionUsedFits To Make(s)KENWORTHFits To Model(s)T680Stock NumberUPS-277298-20-REF MLS Number14140798CategoryAxle Housings, Rear Last Updated6/3/2026 LocationFresno, CA, US Sold ByGarabedian Equipment (855) 794-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos Eaton RSP40 Rear Axle Housing $850 USD Eaton Rear Axle Housing, RSP40, P/N 320586, 10 Hole Pilot, Air Drum Brakes, 16 Hole Flange. ConditionUsedStock Number31450 MLS Number14291941CategoryAxle Housings, Rear Last Updated5/20/2026 LocationDinuba, CA, US Sold ByGarabedian Equipment (855) 794-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 8 Photos View 0 Videos Eaton RSP40 Rear Axle Housing $850 USD Eaton Rear Axle Housing, RSP40, w/ Torque Rod Bracket, 10 Hole Pilot, Air Drum Brakes, ABS, 53.5" Inner Flange To Inner Flange, STD Track, P/N 321550. Removed From Hendrickson Haulmaax... ConditionUsedStock Number4540417 MLS Number14290784CategoryAxle Housings, Rear Last Updated5/20/2026 LocationDinuba, CA, US Sold ByGarabedian Equipment (855) 794-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos Eaton RSP40 Rear Axle Housing for a Kenworth $850 USD Eaton Rear Axle Housing, RSP40, 10 Hole Pilot, Air Drum Brakes, 54" Inner Flange To Inner Flange, 16 Hole Flange, Axle Shafts Removed, Removed From Kenworth AG400 Suspension, ConditionUsedFits To Make(s)KenworthStock Number4536308 MLS Number14288388CategoryAxle Housings, Rear Last Updated5/20/2026 LocationDinuba, CA, US Sold ByGarabedian Equipment (855) 794-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 5 Photos View 0 Videos Eaton RSP40 Rear Axle Housing $850 USD Eatont Rear Axle Housing, RSP40, P/N 321330, S/N U111292073, 10 Hole Pilot, Air Disc Brakes. ConditionUsedStock Number31721 MLS Number14326384CategoryAxle Housings, Rear Last Updated5/20/2026 LocationFresno, CA, US Sold ByGarabedian Equipment (855) 794-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 5 Photos View 0 Videos 2016 Eaton RSP40 Rear Axle Housing for a Kenworth T680 $1,350 USD Refurbished Eaton RSP40 Rear Axle Housing, 16 Hole Flange, 53.5" Inner Flange To Inner Flange, P/N 321318. Removed From 2016 Kenworth AG400L Suspension. ConditionUsedFits To Make(s)KENWORTHFits To Model(s)T680Stock NumberUPS-277190-20-REF MLS Number14142985CategoryAxle Housings, Rear Last Updated5/19/2026 LocationFresno, CA, US Sold ByGarabedian Equipment (855) 794-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 5 Photos View 0 Videos Eaton RSP40 Rear Axle Housing $850 USD Eaton Rear Axle Housing, RSP40, P/N 321550, 10 Hole Pilot, Air Drum Brakes. Hendrickson late straddle mount brackets ConditionUsedStock Number33135 MLS Number14373620CategoryAxle Housings, Rear Last Updated5/20/2026 LocationDinuba, CA, US Sold ByGarabedian Equipment (855) 794-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 0 Videos 2014 Eaton RSP40 Rear Differential for a Kenworth T440 $574 USD (USED) Eaton RSP40 Ratio: 4.33 Side Gear Splines: 41 W/ Locker: NO Cast#: Na ConditionUsedFits To Make(s)KenworthFits To Model(s)T440Stock Number25802180 MLS Number13610369CategoryDifferentials, Rear Last Updated5/15/2026 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 3.42. 1 2MONTH PARTS AND LABOR WARRANTY. EXTENDED WARRANTY AVAILABLE., Axle Spline Count: 41, Serial#: 62322, Core Charge: EXCHANGE, Ratio: 3.42 ConditionRemanufacturedPart Number62322Stock Number62322. MLS Number14270268CategoryDifferentials, Rear Last Updated6/13/2026 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 4.88. 12 MONTH PARTS AND LABOR WARRANTY. EXTENDED WARRANTY AVIALABLE., Axle Spline Count: 41, Serial#: 62180, Core Charge: EXCHANGE, Ratio: 4.88 ConditionRemanufacturedPart Number62180Stock Number62180 MLS Number14128542CategoryDifferentials, Rear Last Updated5/15/2026 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 $795 USD RSP40 USED TAKEOUT 5.57 RATIO. WILL INSPECT IN OUR GEARSHOP. 90 DAY WARRANTY., Axle Spline Count: 41, Ratio: 5.57 ConditionUsedRear End5.57 ratioStock NumberP-60985 MLS Number14117966CategoryDifferentials, Rear Last Updated5/15/2026 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 .4.11 12 MONTH PARTS AND LABOR WARRANTY. EXTENDED WARRANTY AVAILABLE., Axle Spline Count: 41, Serial#: 62129, Core Charge: EXCHANGE, Ratio: 4.11 ConditionRemanufacturedPart Number62129Stock Number62129 MLS Number13910048CategoryDifferentials, Rear Last Updated5/15/2026 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 2003 Peterbilt 379 $795 USD GOOD INSPECTED TAKEOUT. 90 DAY WARRANTY EXCHANGE, Axle Spline Count: 41, Core Charge: 250.00, Ratio: 3.90 ConditionUsedRear End3.90 ratioFits To Make(s)PeterbiltFits To Model(s)379Will Fit Year(s)2003Part NumberNAStock Number90325-4 MLS Number13810816CategoryDifferentials, Rear Last Updated6/13/2026 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 Axle Housing for a 2015 Kenworth T680 $1,295 USD GOOD USED HOUSING ASSEMBLY. RSP40 RSP41 PACCAR AG400L, FLEXAIR/ LATE LOW AIR, BEARING SURFACES ARE GOOD, Core Charge: NA ConditionUsedFits To Make(s)KenworthFits To Model(s)T680Will Fit Year(s)2015Part NumberNAStock Number82425-11 MLS Number13788028CategoryAxle Housings, Rear Last Updated5/15/2026 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 4.11 .12 MONTH PARTS AND LABOR WAARANTY. EXTENDE WARRANTY AVAILABLE ., Axle Spline Count: 41, Serial#: 14882, Core Charge: EXCHANGE, Ratio: 4.11 ConditionRemanufacturedPart Number14882Stock Number14882 MLS Number13519250CategoryDifferentials, Rear Last Updated5/15/2026 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 411. 12 MONTH PARTS AND LABOR WARRANTY . EXTENDED WARRANTY AVAILABLE., Axle Spline Count: 41, Serial#: 14878, Core Charge: EXCHANGE, Ratio: 4.11 ConditionRemanufacturedPart Number14878Stock Number14878 MLS Number13519209CategoryDifferentials, Rear Last Updated5/15/2026 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 Axle Housing for a 2014 Peterbilt 579 $1,250 USD USED REAR AXLE HOUSING, AG380 SUSPENSION, RSP40, DRUM BRAKES, LIGHT WEAR ON BEARING SURFACES, Hub Bolts: 10 PILOT, Suspension: AG380, Brake Type: DRUM ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2014Stock Number30325-6 MLS Number13446295CategoryAxle Housings, Rear Last Updated5/15/2026 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 2014 Peterbilt 579 $600 USD RSP40 3.25 WILL INSPECT IN OUR GEAR SHOP, 90 DAY WARRANTY, Axle Spline Count: 41, Ratio: 3.25 ConditionUsedRear End3.25 ratioFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2014Part NumberRSP40Stock Number30325-4 MLS Number13446293CategoryDifferentials, Rear Last Updated5/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 0 Videos Eaton RSP40 Rear Differential $1,295 USD REBUILT RSP40 4.33 12 MONTH PARTS AND LABOR WARRANTY. EXTENDED WARRANTY AVAILABLE, Axle Spline Count: 41, Serial#: 14970, Core Charge: EXCHANGE, Ratio: 4.33 ConditionRemanufacturedPart Number14970Stock Number14970 MLS Number13405386CategoryDifferentials, Rear Last Updated5/15/2026 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 Axle Housing for a 2003 Peterbilt 379 $1,295 USD GOOD USED AIR LEAF HOUSING ASSEMBLY/ TOP OF CENTER SECTION HAS BEEN WELDED AND REPAIRED, Hub Bolts: 10, Suspension: AIR LEAF, Brake Type: DRUM ConditionUsedFits To Make(s)PeterbiltFits To Model(s)379Will Fit Year(s)2003Part NumberNAStock Number122124-12 MLS Number13315638CategoryAxle Housings, Rear Last Updated9/15/2026 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 $795 USD INSPECTED TAKE OUT RSP40 3.42 . 90 DAY PARTS ONLY WARRANTY. EXTENDED WARRANTY AVAILABLE., Axle Spline Count: 41, Serial#: 14722, Core Charge: N/A, Ratio: 3.42 ConditionUsedPart Number14722Stock Number14722 MLS Number13281982CategoryDifferentials, Rear Last Updated5/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info