Front Climate Control Module 599‑217 Replacement HVAC Control Module for Express 1500 2500 3500 4500 Astro The climate control module is designed as a direct replacement for the unit with OE numbers 599-217, 5773678, 15073274, 15130959, 15191308, 15858578, 16238445, 19370220, 23283455, 25753629, 84106610, 84288985, 84555663, 84793087, 9375795, 93804402, 94666468.It fits vehicles including Express 1500, 2500, 3500, and 4500 models from 1996 to 2020, Astro from 1996 to 2005, Safari from 1996 to 2005, C4500, C5500, C6500, C7500, and 8500 Topkick from 2003 to 2011, G3500, G30, and cargo and passenger variants of Express from 2009 to 2020.This replacement module helps resolve common HVAC issues such as inconsistent heating or cooling, unresponsive controls, or reduced system performance, contributing to improved cabin comfort.By restoring proper of the climate control system, it supports overall vehicle functionality.The unit is constructed with ABS material and is intended for straightforward replacement installation.It meets OEM specifications for fit and function.The package includes one climate control module.