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K&L Parts and Service · Suspension & Steering
M5146
In stock · ships from Knoxville
This is a spring pin, also known as a shackle pin or spring hanger pin, designed for Mack truck suspension systems.
Confirm the part fits before you buy. Applications and interchange numbers are researched and audited per part.
We don't publish fitment for this part yet. Rather than guess, get it confirmed against your truck in under a minute.
It serves as the pivot point for the leaf spring assembly, connecting the spring to the shackle or frame hanger. Over time, these pins and their bushings wear, leading to play, misalignment, and uneven tire wear, which requires replacement to restore proper axle alignment and ride quality.
Part Number: M5146
SPRING PIN MACK
Vendor: K&L Parts and Service
Dealer: KP Services Crossville
Compatibility, alternatives, and more
Parts commonly needed alongside suspension & steering
