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Alliance R21-4N Axles & Differentials For Sale

Browse Alliance R21-4N Axles & Differentials on MyLittleSalesman.com and compare listings with prices from $750 to $3,605. Sellers include Frontier Truck Parts, LKQ Heavy Truck, Tim Jordan's Truck Parts, and more. Filter by condition, price, or year to quickly narrow down to the right Alliance R21-4N.
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Axles & Differentials (21)
   Axle Assemblies, Rear (12)    Axle Housings, Rear (3)    Axle Housings (1)    Differentials, Rear (5)
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Showing 1 - 21 of 21 Listings

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Alliance R21-4N Rear Differential for a Freightliner M2 106

2014 Alliance R21-4N Rear Differential for a Freightliner M2 106

$1,795 USD
USED ALLIANCE R21-4N REAR REAR DIFFERENTIAL, RATIO 5.22. THE PRICE IS FOR THE DIFFERENTIAL ONLY BUT WE HAVE HOUSINGS AVAILABLE IF NEEDED.
ConditionUsed
Rear End5.22 ratio
Fits To Make(s)FREIGHTLINER
Fits To Model(s)M2 106
Stock Number96614
MLS Number13085256
CategoryDifferentials, Rear
Last Updated1/6/2026
Location
Crandall, TX, US
Sold By
Tim Jordan's Truck Parts Inc.
(833) 359-___  SHOW
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Tim Jordan's Truck Parts Inc.
Alliance R21-4N Rear Differential

Alliance R21-4N Rear Differential

$1,200 USD
Remanufactured Alliance R21-4N rear, rear differential assembly. 4.77 ratio. 1 Year warranty for parts or Swap out for another unit. $500 For Labor. Towing not covered
ConditionRemanufactured
Rear End4.77 ratio
Fits To Make(s)ALLIANCE
Fits To Model(s)R21-4N
Stock NumberBP TRS R21-4N/4.77
MLS Number14050459
CategoryDifferentials, Rear
Last Updated12/18/2025
Location
Fitchburg, MA, US
Sold By
Rydemore Heavy Duty Truck Parts
(888) 519-___  SHOW
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Rydemore Heavy Duty Truck Parts
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