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Dana Spicer · Drivetrain
128049
In stock · ships from Knoxville
This is a heavy-duty yoke retaining nut (also called a pinion nut) that secures the driveshaft yoke to the differential pinion shaft on commercial trucks.
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Verified fitment for 2 applications
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All confirmed applications for this part number.
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Other applications
Designed for bolt-on end yokes on heavy-duty truck differentials. Replaces Spicer 127589 (without washer base) and Meritor M12-128049. Exact vehicle fit depends on axle model; verify your pinion thread size and hex before ordering.
Part data verified against 5 catalog sources
Numbers this part supersedes or interchanges with. Showing 2 of 2.
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It has an M36 x 1.5 metric thread and a 55 mm hex head, making it a direct replacement for worn or damaged nuts during yoke removal, pinion seal replacement, or driveline service. The nut is commonly used on Dana/Spicer and Eaton axles in Class 6, 7, and 8 trucks. Proper torque of this nut is critical to maintaining pinion bearing preload and preventing yoke slip.
Part Number: 128049
YOKE NUT 128049
Category: Driveline
Unit: ea
Vendor: DANA
Dealer: KP Services Crossville
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