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Eaton RD404 Rear Differentials For Sale

Browse Eaton RD404 Rear Differentials on MyLittleSalesman.com and compare listings with prices from $995 to $1,700. Sellers include Holst Truck Parts, Rocky Mountain Truck Parts, Badger Truck Parts Ltd, and more. Filter by condition, price, or year to quickly narrow down to the right Eaton RD404 Rear Differential.
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Showing 1 - 10 of 10 Rear Differential Listings

1 - 10 of 10 listings
1 - 10 of 10 listings
Eaton RD404 Rear Differential for a 1996 Western Star 4900

Eaton RD404 Rear Differential for a 1996 Western Star 4900

Recently Updated
$1,195 USD
RDP40 RS404/ HAS LATE CASE WITH THRUST BLOCK 3.70 LOCKER WILL INSPECT IN OUR GEAR SHOP, 90 DAY WARRANTY, Ratio: 3.70 LOCKERS
ConditionUsed
Rear End3.70 ratio
Fits To Make(s)Western Star
Fits To Model(s)4900
Will Fit Year(s)1996
Part NumberRD404
Stock Number32225-4
MLS Number13486048
CategoryDifferentials, Rear
Last Updated5/15/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
(833) 541-___  SHOW
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Holst Truck Parts
Eaton RD404 Rear Differential for a 2002 Freightliner CENTURY CLASS

Eaton RD404 Rear Differential for a 2002 Freightliner CENTURY CLASS

Recently Updated
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40 000 LBS RD 404 3.70 RATIO, NO LOCKS, Ratio: 3.7
ConditionUsed
Rear End3.70 ratio
Fits To Make(s)Freightliner
Fits To Model(s)CENTURY CLASS
Will Fit Year(s)2002
Stock Number2232-FRTLR-4
MLS Number13339648
CategoryDifferentials, Rear
Last Updated5/13/2026
Location
STURGEON COUNTY, AB, Canada
Sold By
Badger Truck Parts Ltd.
(855) 624-___  SHOW
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Badger Truck Parts Ltd.
Eaton RD404 Rear Differential for a 1996 Freightliner FLD112

Eaton RD404 Rear Differential for a 1996 Freightliner FLD112

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40,000 LBS RD404 REAR 4.11 RATIO NO LOCK, Ratio: 4.11
ConditionUsed
Rear End4.11 ratio
Fits To Make(s)Freightliner
Fits To Model(s)FLD112
Will Fit Year(s)1996
Stock Number1796-FRTLR-9
MLS Number13338414
CategoryDifferentials, Rear
Last Updated5/13/2026
Location
STURGEON COUNTY, AB, Canada
Sold By
Badger Truck Parts Ltd.
(855) 624-___  SHOW
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Badger Truck Parts Ltd.
Eaton RD404 Rear Differential

Eaton RD404 Rear Differential

$1,700 USD
Remanufactured Eaton RD404 locking rear, rear differential assembly. 6.17 ratio. 1 Year warranty for parts or Swap out for another unit. $500 For Labor. Towing not covered.
ConditionRemanufactured
Rear End6.17 ratio
Fits To Make(s)EATON
Fits To Model(s)RD404
Stock NumberBP TRS RD404/6.17
MLS Number14050289
CategoryDifferentials, Rear
Last Updated3/14/2026
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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