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Dana · Drivetrain
RS4023703941
In stock · ships from Knoxville
This is a remanufactured Dana differential assembly for heavy-duty Class 8 truck tandem axles.
Confirm the part fits before you buy. Applications and interchange numbers are researched and audited per part.
Verified fitment for 2 applications
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All confirmed applications for this part number.
International
Other applications
International
Other applications
Verify axle model, position (forward-rear vs. rear-rear), and spline counts before ordering. The 39 input / 41 side gear spline configuration is required.
Part data verified against 3 catalog sources
Numbers this part supersedes or interchanges with. Showing 5 of 5.
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It uses a hypoid ring and pinion gear set with a 3.70:1 ratio to transfer power from the driveshaft to the axle shafts, allowing wheel speed differentiation. The RS402 model is commonly installed in the rear-rear or forward-rear position on 40,000-lb GAWR axles. You typically replace this assembly when the original differential suffers from gear wear, bearing failure, or housing damage due to high mileage or lack of proper lubrication.
Part Number: RS4023703941
Differential, Rear REMAN DANA DIFF ASSY
Dealer: KP Services Crossville
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