OEM ECM/TCM harness for trucks equipped with a Duramax engine mated to an Allison Transmission. All harnesses have been removed from running and driving trucks with no issues. Harnesses are used and reflect signs of age and use, such as dirt, oil, and degradation of wire loom. Please select your truck's year and configuration from the menu below. For 2001-2007 classic trucks with 4x4, you will need an extension harness, available separately. Please contact us before purchasing a harness for your LML so we can make sure we have the specific harness you need in stock.Â
