Tuff Stuff Performance has been known for the chrome that will get you home, but their components are also highly-valued for their technical quality as well.

One-wire alternators have been around for many years now, yet unbelievably, we still get questions from our readers and enthusiasts that do not understand some basic facts about these wonderful charging components. With some help from the folks at Tuff Stuff Performance, we hit three of the most asked questions.

Tuff Stuff’s one-wire alternators are available in many different amperage levels, external appearances, and drive pulleys.

When Should You Use A One-Wire Alternator?

There is no doubt that one-wire alternators can simplify your build. There is no longer a need for a lot of wiring and wire harnesses from an externally mounted fender wall regulator. In fact,  you can remove the external regulator completely when you install a one-wire alternator. You can use a one-wire alternator anytime, but certainly when you want to minimize the amount of wiring in the charging system.

Hooking up a one-wire alternator is simply a matter of running a wire from the battery terminal on the alternator to the positive terminal on the battery, or the main lug on the starter solenoid if you want to hide the charge wire for a cleaner look.

Do One-Wire Alternators Charge At Idle?

Tuff Stuff’s 40 years of experience have enabled us to develop the alternator’s internal components that can keep your battery charged even at a crawl. Our alternators are able to produce more amps at low RPM’s and there is no need to worry about the use of underdrive pulley systems or ignition regulator turn on with the use of a Tuff Stuff one wire alternator.

Tuff Stuff Performance’s in-house testing shows one-wire alternator charging ability at idle. The fallacy of alternators not being able to charge at idles speeds has been proven false. That myth has been busted!

What Is The Largest Amp Alternator I Can Install?

The more amperage the better. As long as the alternator can fit into your brackets, you can put any size alternator on your vehicle. The voltage regulator will control the amount of amperage that the battery needs to run your accessories. It is important to note that It is imperative to you increase the size of your charge wire if you are upgrading to a higher amp alternator. Insufficient wire gauge size can cause fire due to heat created by resistance.