Will this work on my vehicle's belt tensioner?

These tools fit most standard GM, Ford, Chrysler, and Asian market tensioners. If your vehicle has a non-standard spring mechanism or proprietary quick-release, test-fit one of the pins before committing to the full job — a quick YouTube search for your make and year will show you what you're up against.

Do I need anything else to install a new belt after using these tools?

Once the old belt and tensioner are out, you just need the replacement belt itself. These tools only handle removal — they don't come with hardware or fasteners beyond what's in the kit.

Can I use these with a standard breaker bar and socket set?

Yes. These pins and holders are designed to work with common 1/2" and 3/8" drive tools you likely already own. They bolt down to standard socket sizes, so integration with your existing toolbox is straightforward.