A system designed to replace the V-belt arrangement on a particular engine type with a single, multi-groove belt. This kit typically includes a new crankshaft pulley, water pump pulley, alternator pulley, power steering pulley (if applicable), and tensioner. An example would be upgrading an older Chevrolet engine to a more modern and efficient belt system.
This upgrade offers enhanced reliability and performance compared to traditional V-belt systems. The single belt distributes the load more evenly, reducing slippage and extending component lifespan. Historically, these systems were introduced to improve engine efficiency and reduce maintenance demands.