Butler System Front End Belt Tensioner, Complete with Pulley for 2024+ GM 4.3L-V6 and 6.6L-V8

Butler System front end belt tensioner, complete with pulley for Butler Systems installed beginning May 31, 2024 to Current in vehicles equipped with GM 4.3L-V6 and 6.6L-V8 gasoline engines. Also for Butler Systems installed from 2021 model year to current, with GM 4.3L-V6 and 6.6L-V8 gasoline engines, that have had the Belt Tensioner/Pulley Replacement And Alignment procedure performed. View the 2021+ Butler System Front End PTO Belt Replacement Instructions