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Truck Rear Differentials for Sale

Search new, used, and remanufactured Rear Differentials on MyLittleSalesman.com, with prices from $45 to $5,750. Filter by condition, price, or year to find the right Rear Differential near you today. 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 13,601 Rear Differential Listings

1 - 25 of 13,601 listings
1 - 25 of 13,601 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
NUMBERCall Seller
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LKQ Heavy Truck
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