They’re not cheap, either, ranging from a few bucks to around $50 or more. Larger manufacturers generally stock replacement keys, though generally not at the truck/dealer level, which means you’ll probably have to special order them. Contacting your local dealer and then the manufacturer directly via numbers you find on their website or products should be the first stop in your journey. So the first time I lost a key to a toolbox, I figured the process would be pretty much like replacing a lawnmower key: there are probably only three or four of ’em, so you can either get one from the local shop, or worst case, you could call the manufacturer and order one.
Short answer: You’re pretty damn screwed. I’ve had a little experience with this on my own, but to offer a real answer, I headed to Google, then called around a bit among our TM contacts. I received a couple of emails this week asking about the process of getting replacement keys for toolboxes.
