Saved
0
My Account
Sign in
Sign up
Control Center
Dashboard
Buyer Tools
Saved Listings
0
Compare Saved Listings
Saved Searches
0
My Little Salesman
Sign up
Saved
0
My Account
Sign in
Sign up
Control Center
Dashboard
Buyer Tools
Saved Listings
0
Compare Saved Listings
Saved Searches
0
Price Alerts
0
For Sale
Commercial Trucks
Trailers
Construction Equipment
Logging Equipment
Farm Equipment
Lifting Equipment
Attachments
Heavy Duty Truck Parts
Heavy Equipment & Tractor Parts
Trailer Parts
Aggregate & Mining Equipment
Biomass Equipment
Waste Management & Recycling Equipment
Woodworking & Sawmill Equipment
Industrial Equipment
Recreation & Utility Vehicles
Cars & SUVs
Lawn & Garden
Tools & Material
My Little Salesman Magazine
July 2025
For Rent
Commercial Trucks
Trailers
Construction Equipment
Logging Equipment
Farm Equipment
Lifting Equipment
Attachments
Aggregate & Mining Equipment
Biomass Equipment
Industrial Equipment
Recreation & Utility Vehicles
Sell
Place an Online Listing
Individual listings are the perfect selling solution for individuals or dealers with 15 items or less.
Inventory Mover Package
The inventory selling solution for dealers, manufacturers, and auctioneers with 15+ items.
Print Advertising
Effective industry-trusted advertising, reliably delivered to your targeted buyer.
Online Banner Advertising
Effectively reach buyers in your market as they browse listings within a category or specific manufacturer.
Facebook Marketing
Beautiful campaigns with pinpointed audiences that drive traffic and boosts sales.
Wholesale Marketplace
Buy and sell inventory amongst other registered dealers at wholesale prices.
Services
Dealer Management System (DMS)
One powerful suite of tools to maximize your dealership.
Inventory Management
Easy-to-use cloud-based inventory management with export feeds and accessible from anywhere.
Customer Relationship Management (CRM)
Customers, vendors, prospects, and correspondence in one place, integrated with your inventory.
Lead Management
One dashboard that intelligently connects your inventory, contacts, and leads from all your marketing channels.
Invoicing & Sales Management
Effortlessly turn leads into deals with auto-populated quotes, invoices, and custom contract forms.
Dealership Websites
User-friendly, mobile-responsive, search-engine optimized websites for commercial truck, trailer, heavy equipment, and parts dealers.
Sell Your Inventory
The inventory selling solution to reach hundreds of thousands of buyers, with no contract or commitments.
Facebook Marketing
Beautiful campaigns with pinpointed audiences that drive traffic and boosts sales.
Wanted
Auctions
Financing
Industry
News
Latest Equipment News
Construction Equipment News
Farm Equipment News
Forestry Equipment News
Trucking News
Trailer News
Material Handling News
Drilling & Mining Equipment News
Companies
All Companies
Dealers
Manufacturers
Auctioneers
Transport Companies
Resources
Trade Shows & Events
Industry Services
Appraisals
Associations
Financing and Leasing (Heavy Equipment)
Financing and Leasing (Commercial Trucks)
Inspections
Insurance
Transportation and Shipping
All Guides & Advice
Buying Guides
Construction Equipment Buying Guide
Semi Truck Buying Guide
Backhoe Buying Guide
Dump Truck Buying Guide
Skid Steer Buying Guide
Excavator Buying Guide
Box Truck Buying Guide
Info
Subscription Center
Help Center
Contact Us
Virtual Demonstration
About Us
Testimonials
Our History
Fraud Prevention
Home
Listings
Truck Parts
Differentials, Rear
Eaton
RS404
Eaton RS404 Rear Differentials For Sale
Filter
6
Sort
Close
Default Ranking
Year: Newest First
Year: Oldest First
Price: High to Low
Price: Low to High
Distance: Nearest First
Manufacturer: A-Z
Manufacturer: Z-A
Model: A-Z
Model: Z-A
Hours: High to Low
Hours: Low to High
Mileage: High to Low
Mileage: Low to High
Date Added: Newest First
Date Added: Oldest First
Stock Number: A-Z
Stock Number: Z-A
Photos First
Close
Your Current Search
Industry
Truck Parts
Category
Differentials, Rear
Manufacturer
Eaton
Model
RS404
Inspection Report
No
Market Type
For Sale
Click the
to remove the filter.
Save Search
Email Alert
What's
Save Search and Email Alert
?
Narrow Your Search
Keyword Search
Search within the selected criteria
Industry
Truck Parts
(728)
Category
Differentials, Rear
(728)
Manufacturer
Eaton
(728)
Model
RS404
(728)
Condition
Used
(670)
Remanufactured
(58)
Model Year
-
Horsepower
-
Inspection Report
No
(728)
Warranty
Yes
(0)
No
(0)
Price
-
Country
United States
(686)
Canada
(42)
State / Region
Select a country to view available states.
Seller Type
Dealerships
(728)
Market Type
For Sale
(728)
Filter by Specs or Location
Condition
Used
670
Remanufactured
58
1-25 of 728 results
Sort by:
Default Ranking
Default Ranking
Distance: Nearest First
Year: Newest First
Year: Oldest First
Price: High to Low
Price: Low to High
Manufacturer: A-Z
Manufacturer: Z-A
Model: A-Z
Model: Z-A
Hours: High to Low
Hours: Low to High
Mileage: High to Low
Mileage: Low to High
Date Added: Newest First
Date Added: Oldest First
Stock Number: A-Z
Stock Number: Z-A
Photos First
1-25 of 728
results
4
0
Eaton RS404 Rear Differential
Recently Updated
$600 USD
Good used Eaton DS404 Rear, Rear Differential Assembly. 6.17 Ratio. 90 day guarantee for swap or refund
Condition
Used
Rear End
6.17 ratio
Fits To Make(s)
EATON
Fits To Model(s)
RS404
Stock Number
Ryd RS404/6.17/41
MLS Number
13426325
Category
Differentials, Rear
Last Updated
7/30/2025
Location
Fitchburg, MA, US
Sold By
Rydemore Heavy Duty Truck Parts
(888) 519-___
SHOW
NUMBER
Call Seller
Email Seller
Save
More Info
4
0
Eaton RS404 Rear Differential
Recently Updated
$600 USD
Good used Eaton DS404 Rear, Rear Differential Assembly. 3.25 Ratio. 90 day guarantee for swap or refund
Condition
Used
Rear End
3.25 ratio
Fits To Make(s)
EATON
Fits To Model(s)
RS404
Stock Number
Ryd RS404/3.25/41
MLS Number
11999592
Category
Differentials, Rear
Last Updated
7/30/2025
Location
Fitchburg, MA, US
Sold By
Rydemore Heavy Duty Truck Parts
(888) 519-___
SHOW
NUMBER
Call Seller
Email Seller
Save
More Info
1
0
Eaton RS404 Rear Differential
Recently Updated
$600 USD
Good used Eaton DS404 Rear, Rear Differential Assembly. 3.55 Ratio. 90 day guarantee for swap or refund
Quantity
2
Condition
Used
Rear End
3.55 ratio
Fits To Make(s)
EATON
Fits To Model(s)
RS404
Stock Number
Ryd RS404/3.55/41
MLS Number
10204592
Category
Differentials, Rear
Last Updated
7/30/2025
Location
Fitchburg, MA, US
Sold By
Rydemore Heavy Duty Truck Parts
(888) 519-___
SHOW
NUMBER
Call Seller
Email Seller
Save
More Info
4
0
Eaton RS404 Rear Differential
Recently Updated
$600 USD
Good used Eaton DS404 Rear, Rear Differential Assembly. 3.70 Ratio. 90 day guarantee for swap or refund
Condition
Used
Rear End
3.70 ratio
Fits To Make(s)
EATON
Fits To Model(s)
RS404
Stock Number
Ryd RS404/3.70/41
MLS Number
10295744
Category
Differentials, Rear
Last Updated
7/30/2025
Location
Fitchburg, MA, US
Sold By
Rydemore Heavy Duty Truck Parts
(888) 519-___
SHOW
NUMBER
Call Seller
Email Seller
Save
More Info
4
0
Eaton RS404 Rear Differential
Recently Updated
$600 USD
Good used Eaton RS404 Rear, Rear Differential Assembly. 3.36 Ratio. 90 day guarantee for swap or refund
Quantity
2
Condition
Used
Rear End
3.36 ratio
Fits To Make(s)
EATON
Fits To Model(s)
RS404
Stock Number
Ryd RS404/3.36/41
MLS Number
11402853
Category
Differentials, Rear
Last Updated
7/30/2025
Location
Fitchburg, MA, US
Sold By
Rydemore Heavy Duty Truck Parts
(888) 519-___
SHOW
NUMBER
Call Seller
Email Seller
Save
More Info
1
0
Eaton RS404 Rear Differential
Recently Updated
$600 USD
Good used Eaton DS404 Rear, Rear Differential Assembly. 3.08 Ratio. 90 day guarantee for swap or refund
Condition
Used
Rear End
3.08 ratio
Fits To Make(s)
EATON
Fits To Model(s)
RS404
Stock Number
Ryd RS404/3.08/41
MLS Number
11580899
Category
Differentials, Rear
Last Updated
7/30/2025
Location
Fitchburg, MA, US
Sold By
Rydemore Heavy Duty Truck Parts
(888) 519-___
SHOW
NUMBER
Call Seller
Email Seller
Save
More Info
1
0
Eaton RS404 Rear Differential
Recently Updated
$600 USD
Good used Eaton DS404 Rear, Rear Differential Assembly. 2.93 Ratio. 90 day guarantee for swap or refund
Quantity
2
Condition
Used
Rear End
2.93 ratio
Fits To Make(s)
EATON
Fits To Model(s)
RS404
Stock Number
Ryd RS404/2.93/41
MLS Number
10714392
Category
Differentials, Rear
Last Updated
7/30/2025
Location
Fitchburg, MA, US
Sold By
Rydemore Heavy Duty Truck Parts
(888) 519-___
SHOW
NUMBER
Call Seller
Email Seller
Save
More Info
6
0
Eaton RS404 Rear Differential
Newly Listed
$325 USD
RS404 - Ratio 6.50 - Core - Grade C - Rebuildable - Broken Gear Set, Case Is Good. CORE UNIT SOLD AS-IS., Axle Spline Count: 41, Ratio: 6.50
Condition
Used
Rear End
6.50 ratio
Stock Number
4542131
MLS Number
13725382
Category
Differentials, Rear
Last Updated
7/31/2025
Location
Fresno, CA, US
Sold By
Garabedian Equipment
(855) 794-___
SHOW
NUMBER
Call Seller
Email Seller
Save
More Info
4
0
2004 Eaton RS404 Rear Differential for a Freightliner C120 Century
Recently Updated
$400 USD
(USED) Eaton RS404 Ratio: 3.55 Side Gear Splines: 41 W/ Locker: NO Cast#: 130825
Condition
Used
Fits To Make(s)
Freightliner
Fits To Model(s)
C120 CENTURY
Stock Number
25679000
MLS Number
13095693
Category
Differentials, Rear
Last Updated
7/26/2025
Location
Spencer, IA, US
Sold By
Vander Haag's Inc.
(855) 370-___
SHOW
NUMBER
Call Seller
Email Seller
Save
More Info
3
0
2000 Eaton RS404 Rear Differential for a Peterbilt 377
Price Drop
$325 USD
(USED) Eaton RS404 Ratio: 3.70 Side Gear Splines: 41 W/ Locker: NO Cast#: 127603
Condition
Used
Fits To Make(s)
Peterbilt
Fits To Model(s)
377
Stock Number
25667099
MLS Number
12973916
Category
Differentials, Rear
Last Updated
7/30/2025
Location
Council Bluffs, IA, US
Sold By
Vander Haag's Inc.
(855) 370-___
SHOW
NUMBER
Call Seller
Email Seller
Save
More Info
2
0
1999 Eaton RS404 Rear Differential for a Kenworth T800
Recently Updated
$375 USD
(USED) Eaton RS404 Ratio: 4.33 Side Gear Splines: 41 W/ Locker: NO Cast#: 127603
Condition
Used
Fits To Make(s)
Kenworth
Fits To Model(s)
T800
Stock Number
25722853
MLS Number
13264602
Category
Differentials, Rear
Last Updated
7/30/2025
Location
Winimac, IN, US
Sold By
Vander Haag's Inc.
(855) 370-___
SHOW
NUMBER
Call Seller
Email Seller
Save
More Info
2
0
2000 Eaton RS404 Rear Differential for a Peterbilt 385
$400 USD
(USED) Eaton RS404 Ratio: 3.55 Side Gear Splines: 41 W/ Locker: NO Cast#: NA
Condition
Used
Fits To Make(s)
Peterbilt
Fits To Model(s)
385
Stock Number
25645830
MLS Number
12864178
Category
Differentials, Rear
Last Updated
7/23/2025
Location
Winimac, IN, US
Sold By
Vander Haag's Inc.
(855) 370-___
SHOW
NUMBER
Call Seller
Email Seller
Save
More Info
1
0
Eaton RS404 Rear Differential for a 2005 Freightliner Columbia 120
$495 USD
RS404 3.70 GOOD INSPECTED TAKEOUT/ 90 DAY WARRANTY EXCHANGE, Axle Spline Count: 41, Serial#: NA, Core Charge: 300.00, Ratio: 3.70
Condition
Used
Rear End
3.70 ratio
Fits To Make(s)
Freightliner
Fits To Model(s)
Columbia 120
Will Fit Year(s)
2005
Stock Number
90324-4
MLS Number
13092531
Category
Differentials, Rear
Last Updated
7/22/2025
Location
Ucon, ID, US
Sold By
Holst Truck Parts
(833) 541-___
SHOW
NUMBER
Call Seller
Email Seller
Save
More Info
3
0
2005 Eaton RS404 Rear Differential for a Chevrolet C8500
$525 USD
(USED) Eaton RS404 Ratio: 4.11 Side Gear Splines: 41 W/ Locker: NO Cast#: 131812
Condition
Used
Fits To Make(s)
Chevrolet
Fits To Model(s)
C8500
Stock Number
25806822
MLS Number
13629197
Category
Differentials, Rear
Last Updated
7/18/2025
Location
Council Bluffs, IA, US
Sold By
Vander Haag's Inc.
(855) 370-___
SHOW
NUMBER
Call Seller
Email Seller
Save
More Info
4
0
2012 Eaton RS404 Rear Differential for a International Transtar (8600)
$375 USD
(USED) Eaton RS404 Ratio: 3.36 Side Gear Splines: 41 W/ Locker: NO Cast#: 131812
Condition
Used
Fits To Make(s)
International
Fits To Model(s)
TRANSTAR (8600)
Stock Number
25816538
MLS Number
13709024
Category
Differentials, Rear
Last Updated
7/20/2025
Location
Spencer, IA, US
Sold By
Vander Haag's Inc.
(855) 370-___
SHOW
NUMBER
Call Seller
Email Seller
Save
More Info
2
0
Eaton RS404 Rear Differential
$700 USD
EATON DIFFERENTIAL REAR REAR RS404 RATIO 3.70
Condition
Used
Stock Number
136546
MLS Number
11361345
Category
Differentials, Rear
Last Updated
7/17/2025
Location
Owensboro, KY, US
Sold By
West Side Truck Parts
(866) 828-___
SHOW
NUMBER
Call Seller
Email Seller
Save
More Info
1
0
Eaton RS404 Rear Differential for a 1996 Kenworth T600
$595 USD
GOOD INSPECTED TAKEOUT. 90 DAY WARRANTY EXCHANGE, Axle Spline Count: 41, Serial#: NA, Core Charge: 250.00, Ratio: 355
Condition
Used
Fits To Make(s)
Kenworth
Fits To Model(s)
T600
Will Fit Year(s)
1996
Part Number
RS404
Stock Number
71125-4
MLS Number
13706538
Category
Differentials, Rear
Last Updated
7/17/2025
Location
Ucon, ID, US
Sold By
Holst Truck Parts
(833) 541-___
SHOW
NUMBER
Call Seller
Email Seller
Save
More Info
5
0
2010 Eaton RS404 Rear Differential for a International Prostar
$325 USD
(USED) Eaton RS404 Ratio: 3.70 Side Gear Splines: 41 W/ Locker: NO Cast#: N/A Ref# 509826
Condition
Used
Fits To Make(s)
International
Fits To Model(s)
Prostar
Part Number
509826
Stock Number
25826295
MLS Number
13699471
Category
Differentials, Rear
Last Updated
7/14/2025
Location
Sioux Falls, SD, US
Sold By
Vander Haag's Inc.
(855) 370-___
SHOW
NUMBER
Call Seller
Email Seller
Save
More Info
2
0
Eaton RS404 Rear Differential for a 2000 GMC T8500 C/O
$700 USD
GOOD USED, Core Charge: 0, Ratio: 4.33
Condition
Used
Rear End
4.33 ratio
Fits To Make(s)
GMC
Fits To Model(s)
T8500 C/O
Will Fit Year(s)
2000
Stock Number
2A2E56537
MLS Number
13699219
Category
Differentials, Rear
Last Updated
7/19/2025
Location
Ste-Julie, QC, Canada
Sold By
Camions Lussier-Lussicam inc.
(844) 503-___
SHOW
NUMBER
Call Seller
Email Seller
Save
More Info
3
0
2007 Eaton RS404 Rear Differential for a International 9900
$375 USD
(USED) Eaton RS404 Ratio: 3.25 Side Gear Splines: 41 W/ Locker: NO Cast#: 131812
Condition
Used
Fits To Make(s)
International
Fits To Model(s)
9900
Stock Number
25826215
MLS Number
13697178
Category
Differentials, Rear
Last Updated
7/12/2025
Location
Council Bluffs, IA, US
Sold By
Vander Haag's Inc.
(855) 370-___
SHOW
NUMBER
Call Seller
Email Seller
Save
More Info
2
0
Eaton RS404 Rear Differential for a 1999 Volvo VNL64T
$700 USD
GOOD USED, Core Charge: 0, Ratio: 3.55
Condition
Used
Rear End
3.55 ratio
Fits To Make(s)
VOLVO
Fits To Model(s)
VNL64T
Will Fit Year(s)
1999
Stock Number
2A2E56519
MLS Number
13679382
Category
Differentials, Rear
Last Updated
7/11/2025
Location
Ste-Julie, QC, Canada
Sold By
Camions Lussier-Lussicam inc.
(844) 503-___
SHOW
NUMBER
Call Seller
Email Seller
Save
More Info
5
0
2010 Eaton RS404 Rear Differential for a International Prostar
$325 USD
(USED) Eaton RS404 Ratio: 3.70 Side Gear Splines: 41 W/ Locker: NO Cast#: VERIFY Ref# 509826
Condition
Used
Fits To Make(s)
International
Fits To Model(s)
Prostar
Part Number
509826
Stock Number
25824480
MLS Number
13692638
Category
Differentials, Rear
Last Updated
7/10/2025
Location
Sioux Falls, SD, US
Sold By
Vander Haag's Inc.
(855) 370-___
SHOW
NUMBER
Call Seller
Email Seller
Save
More Info
1
0
Eaton RS404 Rear Differential for a 2000 Freightliner Century Class
Call for price
MILES 384380, Ratio: 370
Condition
Used
Rear End
3.70 ratio
Fits To Make(s)
Freightliner
Fits To Model(s)
Century Class
Will Fit Year(s)
2000
Stock Number
055900-5
MLS Number
13689306
Category
Differentials, Rear
Last Updated
7/9/2025
Location
Farr West, UT, US
Sold By
Rocky Mountain Truck Parts
(855) 980-___
SHOW
NUMBER
Call Seller
Email Seller
Save
More Info
4
0
1999 Eaton RS404 Rear Differential for a Freightliner FLD112
$375 USD
(USED) Eaton RS404 Ratio: 3.90 Side Gear Splines: 41 W/ Locker: NO Cast#: 127603
Condition
Used
Fits To Make(s)
Freightliner
Fits To Model(s)
FLD112
Stock Number
25814470
MLS Number
13685971
Category
Differentials, Rear
Last Updated
7/5/2025
Location
Sioux Falls, SD, US
Sold By
Vander Haag's Inc.
(855) 370-___
SHOW
NUMBER
Call Seller
Email Seller
Save
More Info
1
0
Eaton RS404 Rear Differential for a 2007 International 9400
Call for price
MILES N/A, Ratio: 355
Condition
Used
Rear End
3.55 ratio
Fits To Make(s)
International
Fits To Model(s)
9400
Will Fit Year(s)
2007
Stock Number
475575-4
MLS Number
13684810
Category
Differentials, Rear
Last Updated
7/4/2025
Location
Farr West, UT, US
Sold By
Rocky Mountain Truck Parts
(855) 980-___
SHOW
NUMBER
Call Seller
Email Seller
Save
More Info
1
2
3
4
5
Save Search
Email Alert
What's
Save Search and Email Alert
?
Want to narrow or modify your search criteria?
Filter by Price
Filter by Year
Filter by Location
Filter by Model
Filter by Keyword
Modify your search
Did you find what you were looking for?
Yes
No
What option below best describes your issue?
Choose an option...
I still cannot find what I am looking for.
How do I filter or sort my search?
Could you add a feature?
A picture or description looks incorrect.
Something is broken.
Thank you for the feedback! If you have any suggestions on how to improve our site, please let us know.
Send Feedback
Thank you for the feedback! Your suggestions and feedback immensely help us improve our site.
Got a rear differential to sell? In minutes, you can create an online listing for your rear differential and advertise it to thousands of buyers.
Start selling today
Search Saved
Your search criteria for
has been saved. Quickly jump to this search by going to
My Account
and
Saved Searches
.
Alert Created
Your new listings email alert for
has been created. To change the email frequency or to modify your alerts, click on
My Account
,
Personal Settings
, and
New Listing Alerts
.