Billet Aluminum AMC / Jeep 258 Straight 6 V-Belt Bolt-on Crank Pulley (1V) 1 Groove bolt on crank pulley for adding power steering to AMC / AMX / Jeep 258 cid (4.2L) engines with 6 cylinders. Designed for use with stock power steering and alternator brackets. Fits Jeep CJ's from 1980-1986 and Jeep Wrangler 1987-1990. AMC / AMX / Jeep 258 6 Cylinder engines This is not a complete list. If you have a question about application, please e-mail us. It is not recommended that you select pulleys solely based on model and year alone because often the original engine has been swapped. Diameter: 6.5 Overall Length: 0.80 Grooves: 1 Bolt Pattern: 3 Bolt Bolt Circle: 2.7 Pilot Diameter: 1.8