View 3 Photos View 0 Videos 2016 Eaton RSP41 Rear Differential for a Peterbilt 579 Recently Updated $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 Updated6/24/2026 LocationCouncil Bluffs, IA, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 0 Videos 2019 Eaton RSP40 Rear Differential for a Peterbilt 579 Recently Updated Contact for price RSP40 - Rear Rear - 3.08 Ratio - Pullout - DIFF ONLY. ConditionUsedRear End3.08 ratioFits To Make(s)PETERBILTFits To Model(s)579Stock Number4470-3 MLS Number14335968CategoryDifferentials, Rear Last Updated6/28/2026 LocationFresno, CA, US Sold ByGarabedian Equipment (855) 794-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 3 Photos View 0 Videos 2017 Meritor 3200F2216 Rear Differential for a Peterbilt 579 $360 USD (USED) Meritor 3200F2216 Ratio: 2.64 Side Gear Splines: 41 W/ Locker: NO Cast#: 3200-F-2216 Ref# 3200F2216-02 ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Part Number3200F2216-02Stock Number25793923 MLS Number13570501CategoryDifferentials, Rear Last Updated6/13/2026 LocationSpencer, IA, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 0 Videos Paccar MR2014 Rear Differential for a 2020 Peterbilt 579 Contact for price VERIFICATION PENDING, Ratio: 2.85 ConditionUsedRear End2.85 ratioFits To Make(s)PETERBILTFits To Model(s)579Will Fit Year(s)2020Stock Number2A2E57359 MLS Number14423098CategoryDifferentials, Rear Last Updated6/13/2026 LocationSte-Julie, QC, Canada Sold ByCamions Lussier-Lussicam inc. (844) 503-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 0 Videos Paccar PDL40 Front Differential for a 2020 Peterbilt 579 Contact for price VERIFICATION PENDING, Ratio: 2.85 ConditionUsedRear End2.85 ratioFits To Make(s)PETERBILTFits To Model(s)579Will Fit Year(s)2020Stock Number2A1E57359 MLS Number14423095CategoryDifferentials, Front Last Updated6/13/2026 LocationSte-Julie, QC, Canada Sold ByCamions Lussier-Lussicam inc. (844) 503-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton-Spicer RSP41 Rear Differential for a 2016 Peterbilt 579 $700 USD GOOD USED, Core Charge: 0, Ratio: 3.36 ConditionUsedRear End3.36 ratioFits To Make(s)PETERBILTFits To Model(s)579Will Fit Year(s)2016Stock Number2A2E57336 MLS Number14366927CategoryDifferentials, Rear Last Updated6/13/2026 LocationSte-Julie, QC, Canada Sold ByCamions Lussier-Lussicam inc. (844) 503-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 0 Videos Eaton-Spicer DSP41 Front Differential for a 2016 Peterbilt 579 $1,500 USD GOOD USED, Core Charge: 450, Ratio: 3.36 ConditionUsedRear End3.36 ratioFits To Make(s)PETERBILTFits To Model(s)579Will Fit Year(s)2016Stock Number2A1E57336 MLS Number14366923CategoryDifferentials, Front Last Updated6/13/2026 LocationSte-Julie, QC, Canada Sold ByCamions Lussier-Lussicam inc. (844) 503-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 3 Photos View 0 Videos Meritor MD2014X Rear Differential for a 2020 Peterbilt 579 Contact for price GOOD USED, Ratio: 2.85 ConditionUsedRear End2.85 ratioFits To Make(s)PETERBILTFits To Model(s)579Will Fit Year(s)2020Stock Number2A1E56639 MLS Number13768876CategoryDifferentials, Rear Last Updated6/13/2026 LocationSte-Julie, QC, Canada Sold ByCamions Lussier-Lussicam inc. (844) 503-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 0 Videos 2016 Paccar MX-13 Engine Control Module (ECM) for a Peterbilt 579 $2,105 USD (USED) Paccar MX13 Serial #: Y075873 CPL/Arr: FPCRH12.9M01 HP: 485 Ref# 1877245 tested good ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Part Number1877245Stock Number25615293 MLS Number12721824CategoryEngine Control Modules (ECM) Last Updated6/12/2026 LocationWinimac, IN, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 8 Photos View 0 Videos 2019 Thermo King TK270VFM Auxiliary Power Unit (APU) for a Peterbilt 579 $1,500 USD Good running Thermo King TK270VFM / Yanmar engine assembly. 120 Day guarantee. ConditionUsedFits To Make(s)PETERBILTFits To Model(s)579Stock Number1053723 MLS Number13274631CategoryAuxiliary Power Units (APU) Last Updated6/9/2026 LocationFitchburg, MA, US Sold ByRydemore Heavy Duty Truck Parts (888) 519-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 8 Photos View 0 Videos 2019 Meritor MFS-12E Front Axle Assembly for a Peterbilt 579 $1,028 USD (USED) Meritor MFS-12E Rating: 12000 Brake Type: AIR DRUM Spring Center: 34 Wheel Type: 10 BOLT PILOT CAST # 4195, ABS ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Stock Number25628401 MLS Number12776109CategoryAxle Assemblies, Front Last Updated6/7/2026 LocationCouncil Bluffs, IA, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 5 Photos View 0 Videos 2016 Meritor MFS-12E Front Axle Assembly for a Peterbilt 579 $1,028 USD (USED) Meritor MFS-12E Rating: 12000 Brake Type: AIR DISC Spring Center: 34 Wheel Type: 10 BOLT PILOT CAST#3100-U-8601, ABS ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Stock Number25502244 MLS Number12339467CategoryAxle Assemblies, Front Last Updated6/6/2026 LocationKansas City, MO, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 8 Photos View 0 Videos 2017 Thermo King TK270VFM Auxiliary Power Unit (APU) for a Peterbilt 579 $1,500 USD Good running Thermo King TK270VFM / Yanmar engine assembly. 120 Day guarantee. ConditionUsedFits To Make(s)PETERBILTFits To Model(s)579Stock Number1065188 MLS Number13872271CategoryAuxiliary Power Units (APU) Last Updated6/9/2026 LocationFitchburg, MA, US Sold ByRydemore Heavy Duty Truck Parts (888) 519-___ SHOWNUMBERCall Seller Email Seller Save More Info
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 2 Photos View 0 Videos 2014 Eaton RSP40 Rear Differential for a Peterbilt 579 Contact for price RSP40 - Rear Rear - 3.42 Ratio - Pullout - DIFF ONLY. ConditionUsedRear End3.42 ratioFits To Make(s)PETERBILTFits To Model(s)579Stock Number4462-3 MLS Number14319957CategoryDifferentials, Rear Last Updated6/3/2026 LocationFresno, CA, US Sold ByGarabedian Equipment (855) 794-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 3 Photos View 0 Videos 2016 Meritor MR2014X Rear Differential for a Peterbilt 579 $375 USD (USED) Meritor MR2014X Ratio: 3.25 Side Gear Splines: 41 W/ Locker: NO Cast#: 3200-K-1675 ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Stock Number25638305 MLS Number12863222CategoryDifferentials, Rear Last Updated5/23/2026 LocationSpencer, IA, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 6 Photos View 0 Videos 2020 Paccar DX40 (MR2014P) Rear Differential for a Peterbilt 579 $900 USD Core - DX40 Rear (MR2014P) - 2.64 Ratio - Grade D - Bad Gearset - Bad Case. ConditionUsedRear End2.64 ratioFits To Make(s)PETERBILTFits To Model(s)579Stock Number32667 MLS Number14386828CategoryDifferentials, Rear Last Updated5/22/2026 LocationFresno, CA, US Sold ByGarabedian Equipment (855) 794-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos 2021 Rockwell MR2014X Rear Differential for a Peterbilt 579 $1,195 USD USED ROCKWELL MR2014X (LOCKER) REAR REAR DIFFERENTIAL/3.25 RATIO ConditionUsedRear End3.25 ratioFits To Make(s)PETERBILTFits To Model(s)579Stock Number97893 MLS Number13226074CategoryDifferentials, Rear Last Updated5/22/2026 LocationCrandall, TX, US Sold ByTim Jordan's Truck Parts Inc. (833) 359-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 7 Photos View 0 Videos 2016 Meritor-Rockwell MR2014X Rear Axle Housing for a Peterbilt 579 $950 USD Meritor Rear Axle Housing, MR2014X, w/ Torque Rod Bracket, 10 Hole Pilot, Air Drum Brakes, ABS, 53.5" Inner Flange To Inner Flange.STD Track. P/N E673121P1966. Removed From 2016 Peterbilt... ConditionUsedFits To Make(s)PETERBILTFits To Model(s)579Stock Number958-20 MLS Number14050859CategoryAxle Housings, Rear Last Updated5/19/2026 LocationFresno, CA, US Sold ByGarabedian Equipment (855) 794-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 6 Photos View 0 Videos 2016 Meritor-Rockwell RS21160 Rear Axle Housing for a Peterbilt 579 $950 USD Meritor Rear Axle Housing, RS21160, w/ Torque Rod Bracket, 10 Hole Pilot, Air Drum Brakes, ABS. P/N RS21160NFNN449342, C223121Z1872, S/N FOR03625831. Removed From 2016 Reyco Air Suspension.... ConditionUsedFits To Make(s)PETERBILTFits To Model(s)579Stock Number1812-4 MLS Number13895926CategoryAxle Housings, Rear Last Updated5/19/2026 LocationFresno, CA, US Sold ByGarabedian Equipment (855) 794-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 3 Photos View 0 Videos 2016 Cummins ISX15 Engine Control Module (ECM) for a Peterbilt 579 $975 USD (USED) Cummins ISX15 Serial #: 79885741 CPL/Arr: CPL 4583 HP: 400 TESTED ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Stock Number25797612 MLS Number13586007CategoryEngine Control Modules (ECM) Last Updated5/18/2026 LocationCouncil Bluffs, IA, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Bendix EC-80 ABS Control Module for a 2023 Peterbilt 579 $350 USD ABS MODULE ABS CONTROLLER ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2023Part NumberK211946R000 10R-046739 Q27-1033-303Stock Number71525 MLS Number14286598CategoryABS Control Modules 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 D40-155 Front Axle Housing for a 2020 Peterbilt 579 $1,695 USD FRONT AXLE HOUSING D40-155 ON FLEXAIR/AG380 DISC BRAKE ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2020Part NumberDISC BRAKEStock Number120125-15 MLS Number14015452CategoryAxle 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 Eaton D40-155 Rear Axle Housing for a 2020 Peterbilt 579 $1,695 USD REAR AXLE HOUSING D40-155 ON FLEXAIR/AG380, Suspension: FLEXAIR ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2020Stock Number120125-16 MLS Number14015451CategoryAxle 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 D40-155 Rear Differential for a 2020 Peterbilt 579 $1,995 USD D40-155 RR 2.64 RATIO GOOD INSPECTED TAKEOUT, Ratio: 2.64 ConditionUsedRear End2.64 ratioFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2020Stock Number120125-5 MLS Number14015443CategoryDifferentials, Rear Last Updated5/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info