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Used Eaton RSP40 Axles & Differentials For Sale

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Truck Parts (500)
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Axles & Differentials (500)
   Axle Assemblies, Rear (3)    Axle Housings, Front (1)    Axle Housings, Rear (79)    Axle Shafts (20)    Differential Misc. Parts (2)    Differentials, Front (2)    Differentials, Rear (393)
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RSP40 (500)
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Used (500)
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Showing 1 - 25 of 500 Listings

1 - 25 of 500 listings
1 - 25 of 500 listings
Eaton RSP40 Rear Axle Housing for a Kenworth T680

2016 Eaton RSP40 Rear Axle Housing for a Kenworth T680

Recently Updated
$950 USD
Eaton RSP40 Axle Housing w/ Torque Rod Bracket, 16 Hole Flange, 53.5" Inner Flange To Inner Flange, P/N 321318. Spindles Have Some Bottom Wear. Removed From 2016 Kenworth AG400L Suspension.
ConditionUsed
Fits To Make(s)KENWORTH
Fits To Model(s)T680
Stock NumberUPS-277238-18
MLS Number14142967
CategoryAxle Housings, Rear
Last Updated8/21/2026
Location
Fresno, CA, US
Sold By
Garabedian Equipment
(855) 794-___  SHOW
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Garabedian Equipment
Eaton RSP40 Rear Differential for a Peterbilt 384

2013 Eaton RSP40 Rear Differential for a Peterbilt 384

Recently Updated
Contact for price
RSP40 - Rear Rear - 4.11 Ratio - used - Grade C - rebuildable - DIFF ONLY. p/n 511332, Bad gear set, missing ring gear bolts, ring gear teeth are chipped, case looks good.
ConditionUsed
Rear End4.11 ratio
Fits To Make(s)PETERBILT
Fits To Model(s)384
Stock Number4424-3
MLS Number14305904
CategoryDifferentials, Rear
Last Updated8/19/2026
Location
Fresno, CA, US
Sold By
Garabedian Equipment
(855) 794-___  SHOW
NUMBERCall Seller
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Garabedian Equipment
Eaton RSP40 Rear Differential for a Freightliner Cascadia 125

2012 Eaton RSP40 Rear Differential for a Freightliner Cascadia 125

Recently Updated
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Eaton RSP40- Rear Rear - 3.42 Ratio - Pullout - DIFF ONLY. P/N- 515354, S/N- HN04476282
ConditionUsed
Rear End3.42 ratio
Fits To Make(s)FREIGHTLINER
Fits To Model(s)Cascadia 125
Stock Number4508-3
MLS Number14445088
CategoryDifferentials, Rear
Last Updated8/18/2026
Location
Fresno, CA, US
Sold By
Garabedian Equipment
(855) 794-___  SHOW
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Garabedian Equipment
Eaton RSP40 Rear Differential for a 2006 Kenworth T600

Eaton RSP40 Rear Differential for a 2006 Kenworth T600

$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
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