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Eaton RSP40 Axles & Differentials For Sale

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Axles & Differentials (550)
   Axle Assemblies, Rear (3)    Axle Housings, Front (1)    Axle Housings, Rear (75)    Axle Shafts (20)    Differential Misc. Parts (9)    Differentials, Front (2)    Differentials, Rear (440)
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RSP40 (550)
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Eaton RSP40 Rear Differential for a 2005 Peterbilt 378

Eaton RSP40 Rear Differential for a 2005 Peterbilt 378

Recently Updated
$795 USD
RSP40 3.90 GOOD INSPECTED TAKEOUT 90 DAY WARRANTY EXCHANGE, Core Charge: 350.00, Ratio: 3.90, Casting#: NA, Axle Spline Count: 41
ConditionUsed
Rear End3.90 ratio
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)2005
Part NumberRSP40
Stock Number101424-5
MLS Number13212629
CategoryDifferentials, Rear
Last Updated10/20/2026
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 Freightliner Cascadia 125

2012 Eaton RSP40 Rear Differential for a Freightliner Cascadia 125

Recently Updated
Contact for price
RSP40 - 3.42 Ratio - Pullout. Diff Only, Housing Sold Separately. S/N HN04476282. P/N 515354.
ConditionUsed
Rear End3.42 ratio
Fits To Make(s)FREIGHTLINER
Fits To Model(s)Cascadia 125
Stock Number4508-3
MLS Number14445088
CategoryDifferentials, Rear
Last Updated10/17/2026
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 - 4.11 Ratio - Core - Grade C - Rebuildable - Bad Gearset - Missing Ring Gear Bolts - Ring Gear Teeth are Chipped - Case Looks Good. Core Unit Sold As-Is. P/N 511332.
ConditionUsed
Rear End4.11 ratio
Fits To Make(s)PETERBILT
Fits To Model(s)384
Stock Number4424-3
MLS Number14305904
CategoryDifferentials, Rear
Last Updated10/17/2026
Location
Fresno, CA, US
Sold By
Garabedian Equipment
(855) 794-___  SHOW
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Garabedian Equipment
Eaton RSP40 Rear Differential for a Kenworth T680

2016 Eaton RSP40 Rear Differential for a Kenworth T680

Recently Updated
$500 USD
RSP40 - 3.42 Ratio - Core - Grade C - Rebuildable - Broken Side Gear - Gearset Looks Good. Core Unit Sold As-Is.
ConditionUsed
Rear End3.42 ratio
Fits To Make(s)KENWORTH
Fits To Model(s)T680
Stock Number30292
MLS Number14269353
CategoryDifferentials, Rear
Last Updated10/17/2026
Location
Fresno, CA, US
Sold By
Garabedian Equipment
(855) 794-___  SHOW
NUMBERCall Seller
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Garabedian Equipment
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