Below is a general manufacturer product group description. Please note the information below is not item specific. Item specifics are above in product details.

With Gates Timing Components Kits, you don’t have to shop for additional tensioner & idler pulleys, buy from multiple sources or hassle with returning components that don’t fit. Timing component kits provide a complete system replacement solution, plus detailed installation instructions for each application. There is no guesswork required getting the proper fit.
Each kit includes all the parts for a specific application:

Timing Belts
Tensioner Pulleys
Idlers
Installation Instructions


Now everything that goes into a complete timing system installation — comes out of a single box.