Having trouble finding your Mustang’s pesky light bulb number? Sometimes it's not listed on the bulb itself and your owner's manual is long gone. Don't fret! This guide will help you determine what type of bulb you're missing and where you can find a replacement or upgrade.

Looking to upgrade every bulb in your S550 Mustang to an LED? Find LED lighting upgrades for your entire Mustang using our comprehensive guide.

Upgrade your classic Mustang by replacing your old taillights with new LED alternatives. Not only are they stylish, but they’ll be a lot brighter than your stock taillights. Here are the step-by-step instructions for installing LED taillights on your 1965-1966 Mustang.