2003-2009 CHEVROLET TRAILBLAZER MANUAL AC HEATER CONTROL UNIT 15195333. THIS IS A NICE USED OEM TAKEOFF HEATER CONTROL FROM A 2003 CHEVROLET TRAILBLAZER. THIS IS A NICE UNIT WITH ALL MOUNTING TABS AND KNOBS IN GOOD SHAPE READY TO BOLT IN. PLEASE MAKE SURE THIS IS CORRECT FOR YOUR APPLICATION BEFORE PURCHASING. FEEL FREE TO MESSAGE ME WITH ANY QUESTIONS.