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Spicer · Drivetrain
6.5-4-3921-1X
In stock · ships from Knoxville
This is a Spicer 1810 series half-round end yoke assembly. It bolts to the differential pinion on heavy-duty Eaton drive axles to connect the driveshaft via u-joint straps.
Confirm the part fits before you buy. Applications and interchange numbers are researched and audited per part.
Verified fitment for 3 applications
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All confirmed applications for this part number.
Freightliner
Other applications
Freightliner
Other applications
Also fits some Mack and Meritor applications via cross-reference. Always verify your axle model and spline count before ordering.
Part data verified against 5 catalog sources
Numbers this part supersedes or interchanges with. Showing 15 of 15.
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You typically replace it when the splines wear out, the yoke ears get damaged, or the u-joint bearing surfaces become egg-shaped. The assembly includes the bare yoke (6.5-4-3911-1) and the slinger (231013).
Part Number: 6.5-4-3921-1X
END YOKE ASSY 6.5-4-3921-1X
Category: Driveline
Unit: ea
Dealer: Post Onsite
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