ACDelco Idler Arm, 2011-2019 GM 6.6L Duramax LML L5P 84467788 ACDelco Idler Arm, 2011-2019 GM 6.6L Duramax LML L5P 84467788 For 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019 GM 6.6L Duramax LML L5P Replaces# 84068279 MSRP: Was: Now: $194.95 Add to Cart The item has been added