A fuse is basically an electrical safety device. It’s designed to protect your car’s wiring and components from damage if there’s a surge of electricity. It does this by melting and breaking the circuit if the current gets too high. Think of it like a weak link intentionally built into the system. Each circuit in your car – headlights, radio, power windows, things like that – has its own fuse. It’s placed in the line, so all the electricity for that system has to run through it. If something goes wrong – a short circuit, or too much draw on the system – the fuse will blow before the wiring can overheat and potentially cause a fire. It’s usually located in a fuse box, sometimes under the hood and sometimes inside the car. Without a good fuse, you risk serious damage to the electrical system. A blown fuse is a sign something is wrong, and replacing it with another fuse of the same amperage is the first step. But ignoring repeated blown fuses is a bad idea. It’s like that weak link doing its job, telling you there's a problem to investigate. You’ll notice if a circuit stops working—lights flickering, radio dying, whatever it is—that’s often the first sign a fuse has gone bad. You can find replacements pretty easily, Fixparts Online has a good selection by amperage and type. Just make sure you use the exact same amperage fuse as the one you’re replacing, or you could create a bigger problem. Get more for your money: Fuse (MPN 21D-06-11830) is covered for 12 months!

About Komatsu

Komatsu provides innovative and reliable machinery solutions designed to withstand the harshest conditions in construction and mining.

Why Choose Komatsu?

• Komatsu parts are built to last, even in the toughest conditions, so you get more work done with fewer repairs. • We make parts specifically for Komatsu equipment, guaranteeing a perfect fit and optimal performance. • Using genuine Komatsu parts helps maintain your machine’s value and protects your investment. • You can rely on our wide network of dealers for fast, convenient access to the parts you need, when you need them. Komatsu delivers excellence, FixParts Online delivers to your door.