Standard Motor Products ET37 Fusible Link Wire

The Standard Motor Products ET37 is a fusible link designed to protect critical electrical circuits in automotive applications. This safety component acts as a sacrificial protection device that prevents damage to expensive electrical components downstream in the event of a short circuit or current overload.

Key Features:

• Functions as a circuit protection device, similar to a fuse but designed for higher-amperage applications
• Constructed with copper wire that is several gauges smaller than the circuit it protects
• Designed to fail before other components in the electrical system during overcurrent conditions
• Pre-assembled with terminal connectors for easy installation
• Hypalon insulation provides heat and abrasion resistance
• Manufactured to strict OE specifications for reliable performance

Fusible links are commonly used to protect circuits for alternators, ignition systems, and other high-current electrical components. When excessive current flows through the circuit, the fusible link wire heats up and melts, breaking the circuit continuity and preventing damage to more expensive components such as ECUs, motors, or wiring harnesses. This cost-effective protection device can typically be replaced in minutes, making it an essential preventative maintenance component.