Used Eaton RS521 Rear Differentials For Sale in United States

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Industry
Truck Parts

Category
Differentials, Rear

Manufacturer
Eaton

Model
RS521

Condition
Used

Market Type
For Sale

Country
United States

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1 - 2 of 2 listings

Eaton RS521 Rear Differential

Eaton RS521 Rear Differential

Newly Listed

$1,250 USD

Good used Eaton RS521 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)	RS521
Stock Number	Ryd RS521/6.17/36
MLS Number	14164842
Category	Differentials, Rear
Last Updated	2/26/2026
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

(888) 519-___ SHOW
NUMBERCall Seller

Rydemore Heavy Duty Truck Parts

Eaton RS521 Rear Differential

Eaton RS521 Rear Differential

$1,500 USD

Used inspected take out, Core Charge: 600, Ratio: 4.56

Condition	Used
Rear End	4.56 ratio
Stock Number	2702
MLS Number	13725969
Category	Differentials, Rear
Last Updated	7/26/2025
Location	Wayne, NJ, US
Sold By	Camp Auto and Truck Parts Inc.

(833) 527-___ SHOW
NUMBERCall Seller

Camp Auto and Truck Parts Inc.

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