2004 CHEVY TAHOE SILVERADO GMC YUKON 5.3L ENGINE CONTROL MODULE ECU ECM 12586242 Left hand (driver side) mirror

Left hand (driver side) mirror

but tail light is fully intact with no cracks or holes

3L1A-12A650-HD

Authentic OEM item in good cosmetic shape and is fully functional

but have not been tested and are not guaranteed to be working

2004 CHEVY TAHOE SILVERADO GMC YUKON 5.3L ENGINE CONTROL MODULE ECU ECM 12586242 Left hand (driver side) mirrorBig State Auto Parts, LLC Item Details Authentic OEM component in good condition. All connectors locking tabs are fully intact. Please refer to part number (12586242) to ensure compatibility with your make and model. As with any electronic control module, THIS UNIT IS LIKELY TO REQUIRE RE PROGRAMMING TO WORK WITH YOUR SPECIFIC VEHICLE. Please consult your local dealership or authorized professional mechanic if you are uncertain about this process.