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The Peterson mandrel step washer is a billet-aluminum guide and step washer machined for drive pulley and mandrel applications. It measures 2.5 inches outside diameter with a 7/16-inch bolt hole and is used to index or space mandrels and pulleys during assembly. Machined from billet aluminum, it provides consistent thickness and fit for pulley setups that require precise spacing.
Peterson Fluid Systems Mandrel Step Washer 7/16 ID
