View 1 Photo View 0 Videos Meritor-Rockwell MT-40-14X Front Differential for a 2023 Peterbilt 579 Recently Updated $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 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 Differential for a 2024 Peterbilt 579 Recently Updated $1,295 USD GOOD LOW MILE INSPECTED TAKEOUT,90 DAY WARRANTY EXCHANGE, Serial#: NA, Core Charge: 400, 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 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 Differential for a 2023 Peterbilt 579 Recently Updated $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 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 Differential for a 2017 Peterbilt 579 Recently Updated $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 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 Differential for a 2017 Peterbilt 579 Recently Updated $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 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 Differential for a 2023 Peterbilt 579 Recently Updated $1,695 USD 40-14X 2.85, 151K MILES, INSPECTED 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 Number62424-3 MLS Number12957110CategoryDifferentials, 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 MT40-14X Front Differential for a 2019 Peterbilt 579 Recently Updated $1,295 USD 40-14X 3.08 GOOD INSPECTED TAKEOUT/ 90 DAY WARRANTY EXCHANGE, Axle Spline Count: 41, Serial#: NA, Core Charge: 400, Ratio: 3.08 ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2019Part Number40-14XStock Number40824-2 MLS Number12779282CategoryDifferentials, 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 MT40-14X Front Differential for a 2020 Peterbilt 579 Recently Updated $1,495 USD 40-14X 2.85 INSPECTED 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)2020Stock Number90722-8 MLS Number11607572CategoryDifferentials, 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 MR2014X Front 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 Number896581-4 MLS Number14222110CategoryDifferentials, Front Last Updated5/14/2026 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 RT40-160 Front Differential for a 2015 Peterbilt 579 Recently Updated Contact for price MILES 562802, Ratio: 373 ConditionUsedRear End3.73 ratioFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2015Stock Number284918-4 MLS Number13682934CategoryDifferentials, Front Last Updated5/14/2026 LocationFarr West, UT, US Sold ByRocky Mountain Truck Parts (855) 980-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 0 Videos 2020 Rockwell MD2014X Front Differential for a Peterbilt 579 $695 USD USED ROCKWELL/ MERITOR MD2014X FRONT REAR DIFFERENTIAL/3.25 RATIO ConditionUsedRear End3.25 ratioFits To Make(s)PETERBILTFits To Model(s)579Stock Number87549 MLS Number12833492CategoryDifferentials, Front Last Updated1/24/2026 LocationCrandall, TX, US Sold ByTim Jordan's Truck Parts Inc. (833) 359-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 0 Videos 2018 Rockwell MD2014X Front Differential for a Peterbilt 579 $695 USD USED ROCKWELL MERITOR MD2014X FRONT REAR DIFFERENTIAL/3.25 RATIO ConditionUsedRear End3.25 ratioFits To Make(s)PETERBILTFits To Model(s)579Stock Number72312 MLS Number12827441CategoryDifferentials, Front Last Updated1/24/2026 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 2013 Eaton DSP40 Front Differential for a Peterbilt 579 $1,195 USD USED EATON DSP40 FRONT REAR DIFFERENTIAL/3.36 RATIO ConditionUsedRear End3.36 ratioFits To Make(s)PETERBILTFits To Model(s)579Stock Number72175 MLS Number12827373CategoryDifferentials, Front Last Updated5/1/2024 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-Spicer DSP41 Front Differential for a 2016 Peterbilt 579 Newly Listed Contact for price ConditionUsedFits To Make(s)PETERBILTFits To Model(s)579Will Fit Year(s)2016Stock Number2A1E57336 MLS Number14366923CategoryDifferentials, Front Last Updated5/14/2026 LocationSte-Julie, QC, Canada Sold ByCamions Lussier-Lussicam inc. (844) 503-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos Eaton DSP40 Front Differential for a 2015 Peterbilt 579 Recently Updated 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 Updated5/13/2026 LocationSTURGEON COUNTY, AB, Canada Sold ByBadger Truck Parts Ltd. (855) 624-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos 2016 Eaton DDP41 Front Differential for a Peterbilt 579 $2,250 USD (USED) Eaton DDP41 Ratio: 2.80 Side Gear Splines: 41 Cast#: 132043 Ref# 515145 ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Part Number515145Stock Number25984299 MLS Number14332124CategoryDifferentials, Front Last Updated4/25/2026 LocationSioux Falls, SD, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos 2018 Meritor MD2014X Front Differential for a Peterbilt 579 $850 USD (USED) Meritor MD2014X Ratio: 3.08 Side Gear Splines: 41 W/ Locker: NO Cast#: 3200J2220 ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Stock Number25799961 MLS Number13815217CategoryDifferentials, Front Last Updated4/25/2026 LocationDes Moines, IA, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos 2016 Meritor MD2014X Front Differential for a Peterbilt 579 $850 USD (USED) Meritor MD2014X Ratio: 3.42 Side Gear Splines: 41 W/ Locker: NO Cast#: 3200J2220_02 ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Stock Number25980802 MLS Number14318901CategoryDifferentials, Front Last Updated4/18/2026 LocationCouncil Bluffs, IA, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos 2020 Eaton D40-155 Front Differential for a Peterbilt 579 $2,650 USD (USED) Eaton D40-155 Ratio: 2.64 Side Gear Splines: 41 W/ Locker: NO Cast#: 515578 Ref# 10000887 ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Part Number10000887Stock Number25940466 MLS Number14168269CategoryDifferentials, Front Last Updated3/26/2026 LocationSpencer, IA, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos 2017 Meritor MD2014X Front Differential for a Peterbilt 579 $950 USD (USED) Meritor MD2014X Ratio: 3.25 Side Gear Splines: 41 W/ Locker: NO Cast#: 3200J2220 ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Stock Number25922321 MLS Number14097440CategoryDifferentials, Front Last Updated1/18/2026 LocationDes Moines, IA, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos 2016 Rockwell MV2014P Front Differential for a Peterbilt 579 $5,500 USD USED ROCKWELL MV2014P FRONT DIFFERENTIAL RATIO: 2.79 ConditionUsedRear End2.79 ratioFits To Make(s)PETERBILTFits To Model(s)579Stock Number99577 MLS Number13879383CategoryDifferentials, Front Last Updated10/10/2025 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 2016 Eaton DSP40 Front Differential for a Peterbilt 579 $1,295 USD USED EATON DSP40 FRONT DIFFERENTIAL ASSEMBLY - RATIO: 3.36 ConditionUsedRear End3.36 ratioFits To Make(s)PETERBILTFits To Model(s)579Stock Number93097 MLS Number12837210CategoryDifferentials, Front Last Updated9/30/2025 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 2018 Meritor MD2014X Front Differential for a Peterbilt 579 $925 USD (USED) Meritor MD2014X Ratio: 2.64 Side Gear Splines: 41 W/ Locker: NO Cast#: 3200J2220_02 ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Stock Number25692750 MLS Number13853410CategoryDifferentials, Front Last Updated9/29/2025 LocationCouncil Bluffs, IA, US Sold ByVander Haag's Inc. (855) 370-___ 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 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