View 1 Photo View 0 Videos Meritor-Rockwell MR2014X Rear Differential for a 2023 Peterbilt 579 Recently Updated Contact for price MILES 7072, Ratio: 279 ConditionUsedRear End2.79 ratioFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2023Stock Number896581-5 MLS Number14222111CategoryDifferentials, Rear Last Updated4/3/2026 LocationFarr West, UT, US Sold ByRocky Mountain Truck Parts (855) 980-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Meritor-Rockwell MT-40-14X Front Differential for a 2023 Peterbilt 579 $1,495 USD 40-14X FRT 2.79 INSPECTED IN OUR GEAR SHOP 90 DAY WARRANTY, Ratio: 279 ConditionUsedRear End2.79 ratioFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2023Stock Number20426-3 MLS Number14135969CategoryDifferentials, Front Last Updated3/12/2026 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 Differential for a 2024 Peterbilt 579 $1,295 USD GOOD LOW MILE INSPECTED TAKEOUT,90 DAY WARRANTY EXCHANGE, Serial#: NA, Core Charge: 400.00, Ratio: 3.08, Clutch Housing Size: 1 ConditionUsedRear End3.08 ratioFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2024Part Number40-14XStock Number110524-6 MLS Number13992297CategoryDifferentials, Front Last Updated3/12/2026 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 Rear Differential for a 2024 Peterbilt 579 $1,495 USD LOW MILE TAKEOUT,LOCKER (20-145 STYLE CASE) 90 DAY WARRANTY EXCHANGE, Serial#: NA, Core Charge: 750.00, Ratio: 3.08, Casting#: NA ConditionUsedRear End3.08 ratioFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2024Part Number20-14XStock Number110524-5 MLS Number13992296CategoryDifferentials, Rear Last Updated3/12/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 0 Videos Meritor-Rockwell MT-40-14X Rear Axle Housing for a 2023 Peterbilt 579 $1,795 USD REAR AXLE HOUSING 20-14X AG400L DISC BRAKE BEARING SURFACES ARE GOOD ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2023Stock Number71525-11 MLS Number13727259CategoryAxle Housings, Rear Last Updated3/12/2026 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 Differential for a 2023 Peterbilt 579 $1,095 USD 40-14X 2.85 RATIO LOW MILE WILL INSPECT IN OUR GEAR SHOP 90 DAY WARRANTY, Ratio: 2.85 ConditionUsedRear End2.85 ratioFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2023Stock Number71525-4 MLS Number13727252CategoryDifferentials, Front Last Updated3/12/2026 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 Rear Differential for a 2023 Peterbilt 579 $1,695 USD 20-14X 2.85 RATIO LOW MILE, WILL INSPECT IN OUR GEAR SHOP 90 DAY WARRANTY, Ratio: 2.85 ConditionUsedRear End2.85 ratioFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2023Stock Number71525-3 MLS Number13727250CategoryDifferentials, Rear Last Updated3/12/2026 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 Differential for a 2017 Peterbilt 579 $1,150 USD 40-14X 2.64 WILL INSPECT 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)2017Part Number40-14XStock Number51925-3 MLS Number13634619CategoryDifferentials, Front Last Updated3/12/2026 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 Differential for a 2017 Peterbilt 579 $1,295 USD 40-14X 3.08 GOOD INSPECTED TAKEOUT, 90 DAY WARRANTY EXCHANGE, Axle Spline Count: 41, Core Charge: 400, Ratio: 3.08 ConditionUsedRear End3.08 ratioFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2017Stock Number70924-1 MLS Number12988095CategoryDifferentials, Front Last Updated3/12/2026 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 2016 Peterbilt 579 $1,695 USD D40-155R 2.79 GOOD INSPECTED UNIT. 90 DAY WARRANTY/EXCHANGE, Axle Spline Count: 41, Core Charge: 400.00, Ratio: 2.79, Casting#: NA ConditionUsedRear End2.79 ratioFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2016Part NumberD40-155RStock Number22424-3 MLS Number12707320CategoryDifferentials, Rear Last Updated3/12/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Meritor-Rockwell MR2014X Front Differential for a 2023 Peterbilt 579 Contact for price MILES 7072, Ratio: 279 ConditionUsedRear End2.79 ratioFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2023Stock Number896581-4 MLS Number14222110CategoryDifferentials, Front Last Updated3/4/2026 LocationFarr West, UT, US Sold ByRocky Mountain Truck Parts (855) 980-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 3 Photos View 0 Videos Meritor-Rockwell 20-14X Rear Differential for a 2023 Peterbilt 579 $995 USD 20-14X 2.79 RR INSPECTED IN OUR GEAR SHOP 90 DAY WARRANTY, Ratio: 279 ConditionUsedRear End2.79 ratioFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2023Stock Number20426-4 MLS Number14135970CategoryDifferentials, Rear Last Updated2/11/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 0 Videos Meritor-Rockwell RRL23-160 Rear Differential for a 2020 Peterbilt 579 $1,695 USD RRL23161 2.67 LOCKER,INSPECTED IN OUR GEAR SHOP 90 DAY WARRANTY, Ratio: 2.67 ConditionUsedRear End2.67 ratioFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2020Stock Number112025-4 MLS Number14004422CategoryDifferentials, Rear Last Updated11/27/2025 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos 2020 Rockwell MR2014E Rear Differential for a Peterbilt 579 Contact for price USED ROCKWELL MR2014E REAR DIFFERENTIAL ASSEMBLY - RATIO: 3.36 ConditionUsedRear End3.36 ratioFits To Make(s)PETERBILTFits To Model(s)579Stock Number90373 MLS Number12835256CategoryDifferentials, Rear Last Updated5/10/2025 LocationCrandall, TX, US Sold ByTim Jordan's Truck Parts Inc. (833) 359-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos 2020 Rockwell MD2014E Front Differential for a Peterbilt 579 Contact for price USED ROCKWELL MD2014E FRONT DIFFERENTIAL ASSEMBLY - RATIO: 3.36 ConditionUsedRear End3.36 ratioFits To Make(s)PETERBILTFits To Model(s)579Stock Number90372 MLS Number12835255CategoryDifferentials, Front Last Updated5/10/2025 LocationCrandall, TX, US Sold ByTim Jordan's Truck Parts Inc. (833) 359-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos Eaton E13221 Front Axle Assembly for a 2015 Peterbilt 579 Contact for price EATON E13221 2 LEAF, Serial#: N/a, Ratio: NA, Casting#: N/a ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2015Stock Number3364-PETE-5 MLS Number13343934CategoryAxle Assemblies, Front Last Updated3/7/2025 LocationSTURGEON COUNTY, AB, Canada Sold ByBadger Truck Parts Ltd. (855) 624-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos Eaton DSP40 Front Differential for a 2015 Peterbilt 579 Contact for price DOUBLE LOCKS, 3.55 RATIO, 40,000LBS,, Ratio: 3.55 ConditionUsedRear End3.55 ratioFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2015Stock Number2826-PETE-6 MLS Number13341556CategoryDifferentials, Front Last Updated3/7/2025 LocationSTURGEON COUNTY, AB, Canada Sold ByBadger Truck Parts Ltd. (855) 624-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos Eaton DSP40 Rear Axle Housing for a 2015 Peterbilt 579 Contact for price WIDE TRACK HOUSING, DOUBLE LOCKS, 3.55 RATIO, 40,000LBS, ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2015Stock Number2826-PETE-5 MLS Number13341555CategoryAxle Housings, Rear Last Updated3/7/2025 LocationSTURGEON COUNTY, AB, Canada Sold ByBadger Truck Parts Ltd. (855) 624-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos Eaton DSP40 Rear Differential for a 2015 Peterbilt 579 Contact for price DOUBLE LOCKS, 3.55 RATIO, 40,000LBS,, Ratio: 3.55 ConditionUsedRear End3.55 ratioFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2015Stock Number2826-PETE-4 MLS Number13341554CategoryDifferentials, Rear Last Updated3/7/2025 LocationSTURGEON COUNTY, AB, Canada Sold ByBadger Truck Parts Ltd. (855) 624-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos Eaton DSP40 Rear Axle Housing for a 2015 Peterbilt 579 Contact for price WIDE HOUSING,DOUBLE LOCKS, 3.55 RATIO, 40,000LBS, ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2015Stock Number2825-PETE-5 MLS Number13341539CategoryAxle Housings, Rear Last Updated3/7/2025 LocationSTURGEON COUNTY, AB, Canada Sold ByBadger Truck Parts Ltd. (855) 624-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos Eaton RSP40 Rear Axle Housing for a 2014 Peterbilt 579 $1,495 USD GOOD USED AXLE HOUSING AG380 FLEXAIR RSP40 RSP41, Serial#: NA, Hub Bolts: 10, Suspension: FLEX AIR, Brake Type: S-CAM ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2014Part NumberNAStock Number70320-23 MLS Number10308650CategoryAxle Housings, Rear Last Updated8/31/2025 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos Eaton RSP40 Rear Differential for a 2014 Peterbilt 579 $895 USD Good low mile diff 90 day warr. Ext warr available, Ratio: 3.36 ConditionUsedRear End3.36 ratioFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2014Stock Number3615-10 MLS Number9001110CategoryDifferentials, Rear Last Updated12/17/2023 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos 2015 Eaton RSP40 Rear Differential for a Peterbilt 579 Contact for price GTO ConditionUsedRear End3.08 ratioFits To Make(s)PETERBILTFits To Model(s)579Stock Number26936 MLS Number12222818CategoryDifferentials, Rear Last Updated12/15/2025 LocationDouglas, GA, US Sold ByAmerican Truck Parts, Inc. (877) 254-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos 2015 Rockwell MR20-14X Rear Differential for a Peterbilt 579 $950 USD GTO ConditionUsedRear End3.42 ratioFits To Make(s)PETERBILTFits To Model(s)579Stock Number24658 MLS Number10535078CategoryDifferentials, Rear Last Updated12/15/2025 LocationDouglas, GA, US Sold ByAmerican Truck Parts, Inc. (877) 254-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos 2015 Rockwell MD20-14X Front Differential for a Peterbilt 579 $1,250 USD GTO ConditionUsedRear End3.42 ratioFits To Make(s)PETERBILTFits To Model(s)579Stock Number24657 MLS Number10535077CategoryDifferentials, Front Last Updated12/15/2025 LocationDouglas, GA, US Sold ByAmerican Truck Parts, Inc. (877) 254-___ SHOWNUMBERCall Seller Email Seller Save More Info