These Peterson mandrel pulley keys are supplied as a pack of two 1/8" x 6" keys intended for mandrel-style pulley installations. Peterson Fluid Systems, known for dry sump pumps and related accessories, provides this hardware to secure pulleys on mandrels where a 1/8" key is required. The two-piece pack is convenient for matching pulley assemblies during maintenance or build work.
Peterson Fluid Systems Key Pulley 1/8 x 6 (Pack of 2)