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Eaton RS404 Axles & Differentials For Sale

Browse Eaton RS404 Axles & Differentials on MyLittleSalesman.com and compare listings with prices from $49 to $2,602. Sellers include Garabedian Equipment, Holst Truck Parts, River City Truck Parts, and more. Filter by condition, price, or year to quickly narrow down to the right Eaton RS404.
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   Axle Assemblies, Front (1)    Axle Housings, Rear (217)    Axle Shafts (12)    Differential Misc. Parts (15)    Differentials, Front (1)    Differentials, Rear (637)    Differentials, Unspecified (8)
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Showing 1 - 25 of 891 Listings

1 - 25 of 891 listings
1 - 25 of 891 listings
Eaton RS404 Rear Axle Housing for a Freightliner Cascadia 125

2012 Eaton RS404 Rear Axle Housing for a Freightliner Cascadia 125

Recently Updated
$850 USD
Eaton Rear Axle Housing, RS404, P/N 321354, S/N U111718639, 10 Hole Pilot, Air Drum Brakes. Axle Shafts Removed.
ConditionUsed
Fits To Make(s)FREIGHTLINER
Fits To Model(s)Cascadia 125
Stock Number512-2
MLS Number14305967
CategoryAxle Housings, Rear
Last Updated8/14/2026
Location
Dinuba, CA, US
Sold By
Garabedian Equipment
(855) 794-___  SHOW
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Garabedian Equipment
Eaton RS404 Rear Axle Housing for a 1997 Freightliner FLD120

Eaton RS404 Rear Axle Housing for a 1997 Freightliner FLD120

Recently Updated
$1,095 USD
GOOD USED REAR HOUSING ASSEMBLY, Suspension: AIRLINER, Brake Type: DRUM, Casting#: NA, Serial#: NA
ConditionUsed
Fits To Make(s)Freightliner
Fits To Model(s)FLD120
Will Fit Year(s)1997
Part NumberNA
Stock Number111124-20
MLS Number13243138
CategoryAxle Housings, Rear
Last Updated8/13/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
(833) 541-___  SHOW
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Holst Truck Parts
Eaton RS404 Rear Differential for a 2003 Peterbilt 379

Eaton RS404 Rear Differential for a 2003 Peterbilt 379

$795 USD
RS404 3.55 GOOD INSPECTED TAKEOUT/ 90 DAY WARRANTY EXCHANGE, Axle Spline Count: 41, Serial#: NA, Core Charge: 250.00, Ratio: 3.55
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)379
Will Fit Year(s)2003
Part NumberRSP40 RSP41 RS404
Stock Number122124-3
MLS Number13315630
CategoryDifferentials, Rear
Last Updated8/5/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
(833) 541-___  SHOW
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Holst Truck Parts
Eaton RS404 Rear Axle Housing for a 2005 Freightliner Columbia 120

Eaton RS404 Rear Axle Housing for a 2005 Freightliner Columbia 120

$1,295 USD
GOOD USED AXLE HOUSING ASSEMBLY/ WILL INSPECT 90 DAY WARRANTY, Serial#: NA, Hub Bolts: 10, Suspension: AIRLINER, Brake Type: DRUM
ConditionUsed
Fits To Make(s)Freightliner
Fits To Model(s)Columbia 120
Will Fit Year(s)2005
Part NumberNA
Stock Number90324-17
MLS Number13092545
CategoryAxle Housings, Rear
Last Updated7/29/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
(833) 541-___  SHOW
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Holst Truck Parts
Eaton RS404 Rear Axle Housing for a 2000 Kenworth W900

Eaton RS404 Rear Axle Housing for a 2000 Kenworth W900

$1,495 USD
GOOD USED HOUSING ASSEMBLY/ WILL INSPECT BEARING SURFACES.AG200/400 RS404/ RSP40, Serial#: NA, Core Charge: NA, Hub Bolts: 10, Suspension: AG200/400
ConditionUsed
Fits To Make(s)Kenworth
Fits To Model(s)W900
Will Fit Year(s)2000
Part NumberAG200
Stock Number51026-13
MLS Number14424523
CategoryAxle Housings, Rear
Last Updated6/13/2026
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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