Releases tension on serpentine belts with a spring loaded idler pulley
Fits idler pulleys requiring 13mm, 14mm, 15mm, 16mm, 18mm, 19mm hex and both 3/8" and 1/2" square drive sizes
Includes 19mm socket for Honda and Toyota applications
Comes with extension for hard-to-reach idler pulleys
Includes: 13mm, 14mm, 15mm, 16mm, 18mm and 19mm socket, 3/8" square drive and 1/2" square drive
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