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Truck Rear Differentials for Sale

Browse new, used, and remanufactured Rear Differentials on MyLittleSalesman.com, with prices from $45 to $5,750. Quickly refine results with filters for condition, price, or year. Browse complete rear differential assemblies for semi trucks and heavy duty commercial vehicles. Find single, tandem, and inter-axle differentials from Meritor, Dana Spicer, Eaton, and other manufacturers.
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Showing 1 - 25 of 13,602 Rear Differential Listings

1 - 25 of 13,602 listings
1 - 25 of 13,602 listings
Detroit RT40-4N Rear Differential for a 2018 Freightliner M2 106

Detroit RT40-4N Rear Differential for a 2018 Freightliner M2 106

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(Used) 2018 Freightliner M2 106, REAR DIFFERENTIAL GEARS ONLY- Part Number: C11-00042-031, Serial Number: 771AAC-A233152T, Make: Detroit, Model: RT40-4N, Ratio: 4.78, Capacity: 20,000 Lbs,...
ConditionUsed
Rear End4.78 ratio
Fits To Make(s)Freightliner
Fits To Model(s)M2 106
Will Fit Year(s)2018
Part NumberC11-00042-031
Stock NumberP-509831
MLS Number14506943
CategoryDifferentials, Rear
Last Updated7/25/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
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CRG Heavy Truck Parts
Meritor-Rockwell RS23160 Rear Differential for a 2019 Peterbilt 389

Meritor-Rockwell RS23160 Rear Differential for a 2019 Peterbilt 389

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(Used) 2019 Peterbilt 389, REAR DIFFERENTIAL GEARS ONLY- Part Number: 3200S1891, Serial Number: TBD, Make: Meritor, Model: RS23-160, Ratio: 3.07 Capacity: 23,000 Lbs, Reference images for...
ConditionUsed
Rear End3.07 ratio
Fits To Make(s)Peterbilt
Fits To Model(s)389
Will Fit Year(s)2019
Part Number3200S1891
Stock NumberP-509825
MLS Number14506936
CategoryDifferentials, Rear
Last Updated7/25/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
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CRG Heavy Truck Parts
Dana Rear Differential for a 2018 Kenworth W900

Dana Rear Differential for a 2018 Kenworth W900

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(Used) 2018 Kenworth W900, COMPLETE REAR DIFFERENTIAL GEARS ONLY- Part Number: 510257, Serial Number: HN05235295, Make: Spicer, Model: DSH40, Ratio: 3.70, Capacity: 20,000 Lbs, For more...
ConditionUsed
Rear End3.70 ratio
Fits To Make(s)Kenworth
Fits To Model(s)W900
Will Fit Year(s)2018
Part Number510257
Stock NumberP-103073
MLS Number13611355
CategoryDifferentials, Rear
Last Updated7/25/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
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CRG Heavy Truck Parts
Meritor-Rockwell QR100 Rear Differential

Meritor-Rockwell QR100 Rear Differential

Recently Updated
$1,195 USD
RECON QR100 529.1ST 6 MONTH PARTS AND LABOR WARRANTY. LAST 6 MONTH PARTS ONLY WARRANTY. EXTENDED WARRANTY AVAILABLE., Serial#: 14657, Core Charge: EXCHANGE CRITICAL CORE, Ratio: 5.29,...
ConditionRemanufactured
Rear End5.29 ratio
Part Number14657
Stock Number14657
MLS Number13210382
CategoryDifferentials, Rear
Last Updated7/25/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
(833) 541-___  SHOW
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Holst Truck Parts
Eaton RSP40 Rear Differential for a 2006 Kenworth T600

Eaton RSP40 Rear Differential for a 2006 Kenworth T600

Recently Updated
$795 USD
RSP40 3.36 GOOD INSPECTED DIFFERENTIAL ASSEMBLY. 90 DAY WARRANTY, Axle Spline Count: 41, Serial#: NA, Core Charge: 250.00, Ratio: 3.36
ConditionUsed
Fits To Make(s)Kenworth
Fits To Model(s)T600
Will Fit Year(s)2006
Part NumberRSP40
Stock Number111622-18
MLS Number11987671
CategoryDifferentials, Rear
Last Updated7/25/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
(833) 541-___  SHOW
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Holst Truck Parts
Dana 21065T Rear Differential for a 2020 International HV607

Dana 21065T Rear Differential for a 2020 International HV607

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(Used) 2020 International HV607, DIFFERENTIAL GEARS ONLY- Part Number: A107493, Serial Number: TBD, Make: Spicer, Model: 21065T, Ratio: TBD, Capacity: 21,000 Lbs, Reference images for...
ConditionUsed
Fits To Make(s)International
Fits To Model(s)HV607
Will Fit Year(s)2020
Part NumberA107493
Stock NumberP-509713
MLS Number14504435
CategoryDifferentials, Rear
Last Updated7/24/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
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CRG Heavy Truck Parts
Detroit RT40-NFD Rear Differential for a 2019 Freightliner Cascadia 126

Detroit RT40-NFD Rear Differential for a 2019 Freightliner Cascadia 126

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(Used) 2019 Freightliner Cascadia 126, REAR DIFFERENTIAL HOUSING ONLY- Part Number: C11-00051-261, Serial Number: 771195B0012080, Make: Detroit, Model: RT40-NFD, Ratio: 2.85, Capacity:...
ConditionUsed
Rear End2.85 ratio
Fits To Make(s)Freightliner
Fits To Model(s)Cascadia 126
Will Fit Year(s)2019
Part NumberC11-00051-261
Stock NumberP-509708
MLS Number14504430
CategoryDifferentials, Rear
Last Updated7/24/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
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CRG Heavy Truck Parts
Meritor-Rockwell Rear Differential for a Meritor-Rockwell RRL23186R307

2001 Meritor-Rockwell Rear Differential for a Meritor-Rockwell RRL23186R307

Recently Updated
$1,400 USD
GEAR SET IN GOOD CONDITION OIL WEAS CLEAN NO METAL ------------------FULL LOCKING DIFF D.C.L---DRIVER CONTROLLED----3.07 RATIO-=-=-----------14 BOLT CASE
ConditionUsed
Rear End3.07 ratio
Fits To Make(s)MERITOR-ROCKWELL
Fits To Model(s)RRL23186R307
Stock Number2177589
MLS Number14207876
CategoryDifferentials, Rear
Last Updated7/24/2026
Location
Wykoff, MN, US
Sold By
LKQ Heavy Truck
(855) 905-___  SHOW
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LKQ Heavy Truck
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