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Truck Rear Differentials for Sale

Compare new, used, and remanufactured Rear Differentials on MyLittleSalesman.com, with prices from $45 to $5,750. Filter by condition, price, or year to choose the best Rear Differential. 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 13,518 Rear Differential Listings

1 - 25 of 13,518 listings
1 - 25 of 13,518 listings
Axle Alliance RT40-4NR Rear Differential for a Freightliner

Axle Alliance RT40-4NR Rear Differential for a Freightliner

Recently Updated
$850 USD
RT40-4N Rear - 3.42 Ratio - Pullout - grade C - rebuildable - p/n C11-00006-183, s/n 771AAC-A058949T - bad gear set, case looks good.
ConditionUsed
Rear End3.42 ratio
Fits To Make(s)FREIGHTLINER
Stock Number4540660
MLS Number13895914
CategoryDifferentials, Rear
Last Updated7/14/2026
Location
Fresno, CA, US
Sold By
Garabedian Equipment
(855) 794-___  SHOW
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Garabedian Equipment
Detroit RT40-NFD Rear Differential for a 2020 Freightliner Cascadia 126

Detroit RT40-NFD Rear Differential for a 2020 Freightliner Cascadia 126

Newly Listed
Contact for price
(Used) 2020 Freightliner Cascadia 126, REAR DIFFERENTIAL GEARS ONLY- Part Number: C11-00051-620, Serial Number: 771195B0105916, Make: Detroit, Model: RT40-NFD, Ratio: 2.85, Capacity: 20,000...
ConditionUsed
Rear End2.85 ratio
Fits To Make(s)Freightliner
Fits To Model(s)Cascadia 126
Will Fit Year(s)2020
Part NumberC11-00051-620
Stock NumberP-508710
MLS Number14481186
CategoryDifferentials, Rear
Last Updated7/14/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
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CRG Heavy Truck Parts
Dana-Spicer M190T Rear Differential for a 1994 International 4600

Dana-Spicer M190T Rear Differential for a 1994 International 4600

Newly Listed
$1,195 USD
M190T TWO SPEED, 5.57 RATIO. WILL INSPECT IN OUR GEAR SHOP, 90 DAY WARRANTY., Ratio: 557
ConditionUsed
Rear End5.57 ratio
Fits To Make(s)International
Fits To Model(s)4600
Will Fit Year(s)1994
Stock Number70126-2
MLS Number14480968
CategoryDifferentials, Rear
Last Updated7/14/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
(833) 541-___  SHOW
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Holst Truck Parts
Meritor-Rockwell RPL40145P Rear Differential for a 2004 Peterbilt 379

Meritor-Rockwell RPL40145P Rear Differential for a 2004 Peterbilt 379

Newly Listed
$595 USD
USED TAKEOUT 20-145, 3.58 RATIO, WILL INSPECT IN OUR GEARSHOP, 90 DAY WARRANTY., Ratio: 358
ConditionUsed
Rear End3.58 ratio
Fits To Make(s)Peterbilt
Fits To Model(s)379
Will Fit Year(s)2004
Stock Number70326-2
MLS Number14480959
CategoryDifferentials, Rear
Last Updated7/14/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
(833) 541-___  SHOW
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Holst Truck Parts
Detroit RT40-4N Rear Differential for a 2019 Freightliner Cascadia 126

Detroit RT40-4N Rear Differential for a 2019 Freightliner Cascadia 126

Newly Listed
Contact for price
(Used) 2019 Freightliner Cascadia 126, REAR DIFFERENTIAL GEARS ONLY- Part Number: C11-00042-751, Serial Number: 771198B0036937, Make: Detroit, Model: RT40-4N, Ratio: 2.85, Capacity: 20,000...
ConditionUsed
Rear End2.85 ratio
Fits To Make(s)Freightliner
Fits To Model(s)Cascadia 126
Will Fit Year(s)2019
Part NumberC11-00042-751
Stock NumberP-508686
MLS Number14480339
CategoryDifferentials, Rear
Last Updated7/13/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
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CRG Heavy Truck Parts
Dana-Spicer R46-170D Rear Differential for a 2015 Kenworth T800

Dana-Spicer R46-170D Rear Differential for a 2015 Kenworth T800

Recently Updated
$2,995 USD
REBUILT R46170D 3.91 12 MONTH PARTS AND LABOR WARRANTY. EXTENDED WARRANTY AVAILABLE., Axle Spline Count: 46, Serial#: NA, Core Charge: 650.00, Ratio: 3.91
ConditionUsed
Rear End3.91 ratio
Fits To Make(s)Kenworth
Fits To Model(s)T800
Will Fit Year(s)2015
Part Number23-170/ 23-170
Stock Number72025-4
MLS Number13752915
CategoryDifferentials, Rear
Last Updated7/14/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
(833) 541-___  SHOW
NUMBERCall Seller
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Holst Truck Parts
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