BELT DRIVE

GM Smooth Idler Pulley Third Position 2017-2023 GM 6.6L Duramax L5P12626075For 2017, 2018, 2019, 2021, 2022, 2023 GM 6.6L Duramax L5P. ACDelco# 15-40543

GM Smooth Idler Pulley 2013-2023 GM 6.6L Duramax LML L5P 1261193512611935 OE Smooth Idler Pulley. For 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023 GM 6.6L Duramax LML L5P. ACDelco# 15-4983 Bolt included. These are the 2 main pulleys...