Wiring, Relays & Fuses
Wiring, Relays & Fuses for Cars, Motorcycles & More
A reliable electrical system is the backbone of every vehicle. Whether you're protecting circuits from overload, isolating your battery for maintenance, or upgrading your turn signals, our Wiring, Relays & Fuses collection has everything you need. We stock a carefully curated range of heavy-duty connectors, flasher relays, battery disconnect switches, fuse holders, load resistors, and more — all engineered to meet the demands of cars, motorcycles, boats, and RVs. Browse trusted components that deliver clean power delivery, long-lasting durability, and straightforward installation every time.
Featured Products
- 100A Rotary Battery Disconnect Switch 12V–60V | Car Boat RV – A robust rotary-style master cut-off switch rated for 100A across a wide 12V–60V range, ideal for cars, boats, and RVs.
- 12V 2-Pin LED Flasher Relay – Motorcycle Turn Signal Blinker – Eliminate rapid-blink issues when upgrading to LED turn signals on your motorcycle with this simple plug-and-play relay.
- 12mm Panel Mount Fuse Holder Screw Cap 125V/15A 250V/10A – A compact, screw-cap panel-mount fuse holder rated for both 125V and 250V applications, perfect for custom wiring projects.
- 12V 50W LED Load Resistor CAN Bus Decoder – Anti-Flicker Fix – Solve LED hyper-flash and error warnings on CAN Bus-equipped vehicles with this 50W inline load resistor decoder.
- 12V 200A Remote Battery Disconnect Switch – Dual Remote – Remotely isolate your vehicle's battery with this high-capacity 200A disconnect switch, compatible with dual remote controls.
Why Choose Our Wiring, Relays & Fuses?
- Wide Compatibility: Components suited for 12V, 24V, and multi-voltage systems across cars, trucks, motorcycles, boats, and RVs.
- Heavy-Duty Construction: Brass contacts, insulated housings, and high-amp ratings ensure safe, reliable performance under demanding conditions.
- Easy Installation: Designed with the DIY mechanic in mind — clear markings, standard connectors, and minimal tools required.
- Comprehensive Range: From simple fuse holders to advanced CAN Bus decoders, we cover every wiring need in one place.
Learn more: FuelEconomy.gov on vehicle maintenance
Frequently Asked Questions
Q: What is a battery disconnect switch and why do I need one for my car or boat?
A: A battery disconnect switch lets you completely isolate your vehicle's battery from the electrical system when the vehicle is not in use. This prevents parasitic drain, protects against electrical fires, and is essential for track cars, stored vehicles, boats, and RVs. Our 12V 24V Battery Master Cut-Off Switch is a popular choice for both 12V and 24V systems.
Q: Why does my LED turn signal blink too fast after upgrading from incandescent bulbs?
A: This rapid blinking — known as "hyper-flash" — occurs because LED bulbs draw far less current than the original incandescent bulbs, causing the flasher relay to misinterpret a blown bulb. The fix is to install a compatible 12V LED Flasher Relay or add a 50W LED Load Resistor CAN Bus Decoder to restore normal blink speed.
Q: What amp rating do I need for my fuse holder or battery clamp?
A: The correct amp rating depends on your circuit's maximum current draw. Always choose a fuse or connector rated at or slightly above the circuit's expected load — never below. For general accessory circuits, a 10A–15A fuse holder is typical, while battery-level connections (starter motors, inverters) may require 100A or higher. Our 100A Insulated Alligator Clips and 12mm Panel Mount Fuse Holder are excellent starting points for most builds.
Q: Are these wiring components compatible with both cars and motorcycles?
A: Yes! The majority of our relays, fuse holders, and disconnect switches are designed for standard 12V DC systems used in cars, motorcycles, scooters, ATVs, and light marine applications. Always verify the voltage and amperage specifications listed on each product page to ensure compatibility with your specific vehicle.
