View 1 Photo View 0 Videos Meritor-Rockwell MT-40-14X Front Axle Housing for a 2023 Peterbilt 579 $1,795 USD FRONT AXLE HOUSING 40-14X AG400L DISC BRAKE BEARING SURFACES ARE GOOD ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2023Stock Number71525-10 MLS Number13727258CategoryAxle Housings, Front 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 Meritor-Rockwell 20-14X Rear Axle Housing for a 2017 Peterbilt 579 $1,495 USD USED REAR AXLE HOUSING, AG400L SUSPENSION, 20-14X, DRUM BRAKES, Hub Bolts: 10 PILOT, Suspension: AG400L, Brake Type: DRUM ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2017Stock Number51925-14 MLS Number13634635CategoryAxle 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 Meritor-Rockwell MT-40-14X Front Axle Housing for a 2017 Peterbilt 579 $1,495 USD USED FRONT AXLE HOUSING, AG400L SUSPENSION, 40-14X, DRUM BRAKES, Hub Bolts: 10 PILOT, Suspension: AG400L, Brake Type: DRUM ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2017Stock Number51925-13 MLS Number13634634CategoryAxle Housings, Front Last Updated6/27/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Paccar DX40 Rear Differential for a 2019 Peterbilt 579 $1,995 USD DX40 / MV2014R 2.93 WILL INSPECT IN OUR GEAR SHOP, 90 DAY WARRANTY, Ratio: 2.93 ConditionUsedRear End2.93 ratioFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2019Part NumberDX40 MV2014RStock Number41325-4 MLS Number13523084CategoryDifferentials, 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 Dana-Spicer D40-155 Rear Axle Housing for a 2020 Peterbilt 579 $1,895 USD USED REAR AXLE HOUSING, FLEXAIR SUSPENSION, D40-155, DRUM BRAKES, Hub Bolts: 10 PILOT, Suspension: FLEXAIR, Brake Type: DRUM ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2020Stock Number21325-6 MLS Number13405399CategoryAxle 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 Dana-Spicer D40-155 Rear Differential for a 2020 Peterbilt 579 $1,995 USD D40-155 2.64 REAR, INSPECTED IN OUR GEAR SHOP, 90 DAY WARRANTY, Ratio: 2.64 ConditionUsedRear End2.64 ratioFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2020Stock Number21325-4 MLS Number13405396CategoryDifferentials, 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 Dana-Spicer D40-155 Front Differential for a 2020 Peterbilt 579 $2,895 USD D40-155 2.64 FRONT, INSPECTED IN OUR GEAR SHOP, 90 DAY WARRANTY, Ratio: 2.64 ConditionUsedRear End2.64 ratioFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2020Stock Number21325-3 MLS Number13405394CategoryDifferentials, Front 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 RSH40 Rear Differential for a 2021 Peterbilt 579 $895 USD RSH40 3.55 TAKEOUT WILL INSPECT IN OUR GEAR SHOP, 90 DAY WARRANTY, Axle Spline Count: 41, Core Charge: 250.00, Ratio: 3.55 ConditionUsedRear End3.55 ratioFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2021Stock Number12025-4 MLS Number13378535CategoryDifferentials, 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 Dana-Spicer RSP40 Rear Differential for a 2014 Peterbilt 579 $500 USD RSP40 3.55 INSPECTED IN OUR GEAR SHOP, 90 DAY WARRANTY, Ratio: 3.55 ConditionUsedRear End3.55 ratioFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2014Stock Number110824-4 MLS Number13224036CategoryDifferentials, 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 Dana-Spicer DSP40 Front Differential for a 2014 Peterbilt 579 $995 USD DSP40 3.55 INSPECTED IN OUR GEAR SHOP, 90 DAY WARRANTY, Ratio: 3.55 ConditionUsedRear End3.55 ratioFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2014Stock Number110824-3 MLS Number13224035CategoryDifferentials, Front Last Updated5/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 1 Video Cummins ISX15 Engine for a 2014 Peterbilt 579 $14,995 USD ISX15 450HP CPL3937 CM2350 RUNS GOOD LIGHT BLOWBY, CHECK ROD AND MAIN BEARINGS, 180 DAY WARRANTY BLOCK HEAD CRANK, Serial#: 79685470, Horse Power: 450, ARR/CPL: 3937 ConditionUsedCPL/ARR3937Horse Power450 HPFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2014Part NumberCM2350Stock Number110824-1 MLS Number13224033CategoryEngines 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 2016 Peterbilt 579 $795 USD RSP40 3.55 GOOD INSPECTED TAKEOUT. 90 DAY WARRANTY EXCHANGE, Axle Spline Count: 41, Serial#: NA, Core Charge: 350.00, Ratio: 3.55 ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2016Part NumberNAStock Number81224-2 MLS Number13068923CategoryDifferentials, 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 Meritor-Rockwell MT-40-14X Front Axle Housing for a 2017 Peterbilt 579 $1,495 USD GOOD USED FLEX AIR HOUSING ASSEMBLY/ DRUM BRAKE/ MERITOR 40-14X, Serial#: NA, Hub Bolts: 10, Suspension: FLEX AIR/AG380, Brake Type: DRUM ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2017Stock Number70924-11 MLS Number12988105CategoryAxle Housings, Front 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 Meritor-Rockwell 20-14X Rear Axle Housing for a 2023 Peterbilt 579 $1,695 USD USED REAR AXLE HOUSING, AG380 FLEX AIR SUSPENSION, 20-14X, DRUM BRAKES, Hub Bolts: 10 PILOT, Suspension: AG380 FLEX AIR, Brake Type: DRUM ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2023Stock Number62424-6 MLS Number12957113CategoryAxle Housings, 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 Meritor-Rockwell MT40-14X Front Axle Housing for a 2023 Peterbilt 579 $1,695 USD USED FRONT AXLE HOUSING, AG380 FLEX AIR SUSPENSION, 40-14X, DRUM BRAKES, Hub Bolts: 10 PILOT, Suspension: AG380 FLEX AIR, Brake Type: DRUM ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2023Stock Number62424-5 MLS Number12957112CategoryAxle Housings, Front Last Updated6/18/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Paccar DX40 Rear Differential for a 2024 Peterbilt 579 $2,100 USD DX40 RR 279 INSPECTED IN OUR GEAR SHOP 90 DAY WARRANTY 2024 PETE LOW MILES,21K, Ratio: 279 ConditionUsedRear End2.79 ratioFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2024Stock Number60824-3 MLS Number12932754CategoryDifferentials, 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 Dana-Spicer RSP40 Rear Differential for a 2016 Peterbilt 579 $695 USD RSP40 3.36 INSPECTED IN OUR GEAR SHOP, 90 DAY WARRANTY, Ratio: 3.36 ConditionUsedRear End3.36 ratioFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2016Stock Number40924-4 MLS Number12793062CategoryDifferentials, 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 Meritor-Rockwell MT40-14X Front Axle Housing for a 2019 Peterbilt 579 $1,495 USD GOOD USED FRONT HOUSING ASSEMBLY, Serial#: NA, Hub Bolts: 10, Suspension: FLEXAIR, Brake Type: DRUM ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2019Part NumberGETStock Number40824-14 MLS Number12779293CategoryAxle Housings, Front 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 Dana-Spicer D40-155 Rear Axle Housing for a 2016 Peterbilt 579 $1,695 USD GOOD USED HOUSING ASSEMBLY/ BEARING SURFACES WILL BE INSPECTED, Serial#: NA, Hub Bolts: 10, Suspension: FLEX AIR, Brake Type: DISC ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2016Part NumberNAStock Number22424-12 MLS Number12707329CategoryAxle 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 Cummins ISX15 Engine for a 2016 Peterbilt 579 $16,995 USD GOOD RUNNING TAKEOUT ENGINE ASSEMBLY/ROD AND MAIN BEARINGS WILL BE INSPECTED. 180 DAY WARRANTY EXCHANGE, Serial#: 79877300, Core Charge: 4000.00, Horse Power: 450, ARR/CPL: 4583 ConditionUsedCPL/ARR4583Horse Power450 HPFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2016Part NumberISX15Stock Number22424-4 MLS Number12707321CategoryEngines 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 Dana-Spicer D40-155 Front Differential for a 2016 Peterbilt 579 $2,750 USD D40-155 2.79 GOOD INSPECTED TAKEOUT/ 90 DAY WARRANTY EXCHANGE, Core Charge: 500.00, Ratio: 2.79, Clutch Housing Size: 1, Casting#: NA ConditionUsedRear End2.79 ratioFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2016Part NumberD40-155Stock Number22424-2 MLS Number12707319CategoryDifferentials, Front 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 Dana-Spicer D40-155 Rear Axle Housing for a 2019 Peterbilt 579 $2,250 USD REAR AXLE HOUSING D40-155 RR, AG380 FLEXAIR SUSPENSION, DISC BRAKES, Hub Bolts: 10 PILOT, Suspension: AG380 FLEX AIR, Brake Type: DISC ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2019Stock Number12024-6 MLS Number12588812CategoryAxle 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 Dana-Spicer D40-155 Rear Differential for a 2019 Peterbilt 579 $2,250 USD D40-155 RR 2.64 INSPECTED IN OUR GEAR SHOP, 90 DAY WARRANTY, Ratio: 2.64 ConditionUsedRear End2.64 ratioFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2019Stock Number12024-4 MLS Number12588810CategoryDifferentials, 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 Dana-Spicer D40-155 Front Differential for a 2019 Peterbilt 579 $2,495 USD D40-155 2.64 INSPECTED IN OUR GEAR SHOP, 90 DAY WARRANTY, Ratio: 2.64 ConditionUsedRear End2.64 ratioFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2019Stock Number12024-3 MLS Number12588809CategoryDifferentials, Front Last Updated5/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info