Having trouble starting your GM vehicle? This ACDelco Ignition Lock Cylinder is a genuine GM-recommended replacement that matches the quality and fit of the original part. It's uncoded, which means you'll need to have it keyed to match your existing key by a locksmith or dealer. Once installed, it works just like the factory cylinder – you insert your key, turn to unlock, and start the engine. It also engages the steering column lock for added security. Perfect for older GM cars, trucks, and SUVs where the original cylinder is worn out, stuck, or broken. Made to strict OEM specifications, so you know it'll fit right and last. Installation requires some mechanical know-how, but it's a straightforward job if you're comfortable with basic tools. Keep your vehicle secure and reliable with a factory-style part that won't let you down. A trusted solution for a common repair!