2 0 2016 Meritor R40-145-3.36 Rear Differential for a Peterbilt 579 $800 USD R40-145 3.36 Inspected takeout, Yoke SPL170, Side gears 39 Spline ConditionUsedRear End3.36 ratioFits To Make(s)PETERBILTFits To Model(s)579Stock Number12606 MLS Number13400549CategoryDifferentials, Rear Last Updated11/4/2025 LocationSpokane Valley, WA, US Sold ByHigh Mountain Horsepower (833) 913-___ SHOWNUMBERCall Seller Email Seller Save More Info
4 0 2023 Meritor MRL2014X279 Rear Differential for a Peterbilt 579 $2,195 USD MRL2014X 2.79 LOCKER Inspected takeout Low mileage from non wrecked truck (11170 miles) + 995 CORE, Yoke 20 WYS, Side gears 41 Spline, Input 39 Spline ConditionUsedRear End2.79 ratioFits To Make(s)PETERBILTFits To Model(s)579Stock Number11760 MLS Number13203219CategoryDifferentials, Rear Last Updated10/19/2025 LocationSpokane Valley, WA, US Sold ByHigh Mountain Horsepower (833) 913-___ SHOWNUMBERCall Seller Email Seller Save More Info
2 0 Good Used $1,500 USD GOOD USED, Core Charge: 450, Ratio: 3.55 ConditionUsedRear End3.55 ratioFits To Make(s)PETERBILTFits To Model(s)579Will Fit Year(s)2014Stock Number2A1E56774 MLS Number13867304CategoryDifferentials, Rear Last Updated10/10/2025 LocationSte-Julie, QC, Canada Sold ByCamions Lussier-Lussicam inc. (844) 503-___ SHOWNUMBERCall Seller Email Seller Save More Info
5 0 2016 Eaton RSP40 Rear Differential for a Peterbilt 579 $899 USD RSP40 3.55 Inspected Takeout Rear, Rear Differential +$250 Core, Capacity: 40K, Ratio: 3.55, Yoke: 1710, Side Gear: 41 Spline, Input: 39 Spline ConditionUsedRear End3.55 ratioFits To Make(s)PETERBILTFits To Model(s)579Stock Number14929 MLS Number13806984CategoryDifferentials, Rear Last Updated9/29/2025 LocationSpokane Valley, WA, US Sold ByHigh Mountain Horsepower (833) 913-___ SHOWNUMBERCall Seller Email Seller Save More Info
2 0 2014 Eaton RSP41 Rear Differential for a Peterbilt 579 $795 USD 3.42 ratio, Eaton/Spicer rear differential, RSP41. +150 core, SN: HN04250094, OEM# C2-1C13GB2000000000 ConditionUsedRear End3.42 ratioFits To Make(s)PETERBILTFits To Model(s)579Stock Number11259 MLS Number13160121CategoryDifferentials, Rear Last Updated9/9/2025 LocationSpokane Valley, WA, US Sold ByHigh Mountain Horsepower (833) 913-___ SHOWNUMBERCall Seller Email Seller Save More Info
9 0 2017 Meritor MRL2014X355 Rear Differential for a Peterbilt 579 $1,950 USD MRL2014X 3.55 LOCKER Inspected takeout from low mileage (26143 miles) non wrecked truck. +1000 core Yoke; SPL170, Side gear; 41 Spline, Input shaft; 39 Spline ConditionUsedRear End3.55 ratioFits To Make(s)PETERBILTFits To Model(s)579Stock Number12033 MLS Number13270608CategoryDifferentials, Rear Last Updated8/5/2025 LocationSpokane Valley, WA, US Sold ByHigh Mountain Horsepower (833) 913-___ SHOWNUMBERCall Seller Email Seller Save More Info
1 0 2018 Paccar Rear Differential for a Peterbilt 579 $1,995 USD 3.25 ratio PACCAR rear, rear differential, pulled from a non-wrecked, low mileage truck. Part is in great working condition, no damage ConditionUsedRear End3.25 ratioFits To Make(s)PETERBILTFits To Model(s)579Stock Number11463 MLS Number13183720CategoryDifferentials, Rear Last Updated4/29/2025 LocationSpokane Valley, WA, US Sold ByHigh Mountain Horsepower (833) 913-___ SHOWNUMBERCall Seller Email Seller Save More Info
2 0 Meritor-Rockwell 20-14X Rear Differential for a 2017 Peterbilt 579 $695 USD 20-14X 3.08 GOOD INSPECTED TAKEOUT/ 90 DAY WARRANTY EXCHANGE, Axle Spline Count: 41, Core Charge: 350.00, Ratio: 3.08 ConditionUsedRear End3.08 ratioFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2017Stock Number70924-2 MLS Number12988096CategoryDifferentials, Rear Last Updated1/16/2025 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
2 0 Meritor-Rockwell 20-14X Rear Differential for a 2023 Peterbilt 579 $1,095 USD 20-14X 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 Number62424-4 MLS Number12957111CategoryDifferentials, Rear Last Updated6/27/2024 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
1 0 Meritor-Rockwell RSL23161 Rear Differential for a 2020 Peterbilt 579 $1,495 USD RRL23-161 2.80 LOCKER, 166K MILES, INSPECTED IN OUR GEAR SHOP, 90 DAY WARANTY, Ratio: 2.80 ConditionUsedRear End2.80 ratioFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2020Stock Number60624-3 MLS Number12924246CategoryDifferentials, Rear Last Updated6/9/2024 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
2 0 Meritor-Rockwell 20-14X Rear Differential for a 2019 Peterbilt 579 $695 USD 20-14X 3.08 GOOD INSPECTED TAKEOUT/ 90 DAY WARRANTY EXCHANGE, Axle Spline Count: 41, Serial#: NA, Core Charge: 300.00, Ratio: 3.08 ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2019Part Number20-14XStock Number40824-3 MLS Number12779283CategoryDifferentials, Rear Last Updated1/16/2025 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
12 0 Meritor-Rockwell MD2014X Rear Differential for a 2023 Peterbilt 579 Contact for price Meritor Rockwell MD20-14T Front Rear Differential Assembly For Sale 2.79 Ratio - Capacity: 20,000 lbs. - Used - May have some cosmetic blemishes (see photos). Give us a shout by phone, email... ConditionUsedRear End2.79 ratioFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2023Stock NumberPT-0837-7 MLS Number12738560CategoryDifferentials, Rear Last Updated6/30/2024 LocationYork, ON, Canada Sold ByLomoca Inc. (833) 835-___ SHOWNUMBERCall Seller Email Seller Save More Info
1 0 Meritor-Rockwell 20-14X Rear Differential for a 2020 Peterbilt 579 $995 USD 20-14X RR 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 Number90722-9 MLS Number11607573CategoryDifferentials, Rear Last Updated12/18/2023 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
1 0 Eaton RSP40 Rear Differential for a 2016 Peterbilt 579 $795 USD RSP40 2.64 GOOD INSPECTED TAKEOUT 90 DAY WARRANTY, Axle Spline Count: 41, Serial#: NA, Core Charge: 200.00, Ratio: 2.64 ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2016Part NumberRSP41 RSH40Stock Number21122-7 MLS Number11246092CategoryDifferentials, Rear Last Updated2/14/2025 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
1 0 Meritor-Rockwell Rear Differential for a 2017 Peterbilt 579 Contact for price MODEL C876002, Ratio: 285 ConditionUsedRear End2.85 ratioFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2017Stock Number450847-4 MLS Number10869656CategoryDifferentials, Rear Last Updated5/11/2023 LocationFarr West, UT, US Sold ByRocky Mountain Truck Parts (855) 980-___ SHOWNUMBERCall Seller Email Seller Save More Info
0 0 2023 Spicer S23190-3.07 Rear Differential for a Peterbilt 579 Recently Updated $1,899 USD S23-190 3.07 Inspected Takeout LIKE NEW. From ZERO mile (.2 HRS run time on engine) non wrecked truck. +$500 core, Yoke SPL250, Side gear 46 Spline, Input 46 Spline ConditionUsedRear End3.07 ratioFits To Make(s)PETERBILTFits To Model(s)579Stock Number12523 MLS Number13371857CategoryDifferentials, Rear Last Updated11/21/2025 LocationSpokane Valley, WA, US Sold ByHigh Mountain Horsepower (833) 913-___ SHOWNUMBERCall Seller Email Seller Save More Info
0 0 2014 Eaton RSP41 Rear Differential for a Peterbilt 579 $375 USD (USED) Eaton RSP41 Ratio: 3.36 Side Gear Splines: 41 W/ Locker: NO Cast#: N/A Ref# N/A ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Part NumberN/AStock Number25887846 MLS Number13974676CategoryDifferentials, Rear Last Updated11/10/2025 LocationSioux Falls, SD, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
0 0 2020 Meritor MR2014X Rear Differential for a Peterbilt 579 $360 USD (USED) Meritor MR2014X Ratio: 2.64 Side Gear Splines: 41 W/ Locker: NO Cast#: 3200F2216 Ref# MR2014X3MFRNN24-264 ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Part NumberMR2014X3MFRNN24-264Stock Number25890891 MLS Number13974661CategoryDifferentials, Rear Last Updated11/10/2025 LocationSioux Falls, SD, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
0 0 2018 Meritor MR2014X Rear Differential for a Peterbilt 579 $998 USD (USED) Meritor MR2014X Ratio: 2.64 Side Gear Splines: 41 W/ Locker: YES Cast#: 3200-F-1878 Ref# N/A ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Part NumberN/AStock Number25891420 MLS Number13974658CategoryDifferentials, Rear Last Updated11/10/2025 LocationSioux Falls, SD, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
0 0 2016 Eaton S23-190 Rear Differential for a Peterbilt 579 $375 USD (USED) Eaton S23-190 Ratio: 2.69 Side Gear Splines: 46 W/ Locker: YES Cast#: N/A Ref# N/A ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Part NumberN/AStock Number25888290 MLS Number13954801CategoryDifferentials, Rear Last Updated11/7/2025 LocationSioux Falls, SD, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
0 0 2015 Eaton R23-190 Rear Differential for a Peterbilt 579 $375 USD (USED) Eaton R23-190 Ratio: 2.53 Side Gear Splines: 46 W/ Locker: NO Cast#: VERIFY Ref# N/A ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Part NumberN/AStock Number25857893 MLS Number13790523CategoryDifferentials, Rear Last Updated11/1/2025 LocationSioux Falls, SD, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
0 0 2017 Meritor RS23160 Rear Differential for a Peterbilt 579 $1,156 USD (USED) Meritor RS23160 Ratio: 3.07 Side Gear Splines: 46 W/ Locker: YES Cast#: 3200.S-1891 Ref# 3200-S-1891 ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Part Number3200-S-1891Stock Number25866895 MLS Number13826610CategoryDifferentials, Rear Last Updated9/22/2025 LocationKansas City, MO, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
0 0 2016 Eaton RSP40 Rear Differential for a Peterbilt 579 $415 USD (USED) Eaton RSP40 Ratio: 3.25 Side Gear Splines: 41 W/ Locker: NO Cast#: N/A Ref# N/A ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Part NumberN/AStock Number25830535 MLS Number13752116CategoryDifferentials, Rear Last Updated8/16/2025 LocationSioux Falls, SD, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
0 0 Meritor-Rockwell MX14 Rear Differential for a 2015 Peterbilt 579 Contact for price MERITOR MX14 3.70 RATIO 40000 LBS NO LOCKS, Ratio: 3.70 ConditionUsedRear End3.70 ratioFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2015Stock Number3364-PETE-3 MLS Number13343932CategoryDifferentials, Rear Last Updated3/7/2025 LocationSTURGEON COUNTY, AB, Canada Sold ByBadger Truck Parts Ltd. (855) 624-___ SHOWNUMBERCall Seller Email Seller Save More Info
0 0 2007 Eaton RSP40 Rear Differential for a Peterbilt 387 $795 USD USED EATON RSP40 REAR DIFFERENTIAL ASSEMBLY - RATIO: 3.55 ConditionUsedRear End3.55 ratioFits To Make(s)PETERBILTFits To Model(s)387Stock Number57994 MLS Number12820534CategoryDifferentials, Rear Last Updated5/1/2024 LocationCrandall, TX, US Sold ByTim Jordan's Truck Parts Inc. (833) 359-___ SHOWNUMBERCall Seller Email Seller Save More Info