SMP Relay Switch - Controls HI-LOW Beam

SMP relay switch that controls high-beam and low-beam switching for V-twin motorcycles. Direct OEM-style replacement built for consistent, reliable operation in Harley-Davidson and Indian Motorcycle electrical systems.

Features

• Direct OE-style replacement relay switch
• Heavy-duty brightly finished case
• Consistent and reliable performance
• Compact size fits tight spaces

Specifications

• Brand: SMP
• Manufacturer Part #: MCRLY3
• UPC: 091769272043
• Dimensions: 2.7 in L × 3.9 in W × 1.75 in H
• Weight: 0.16 lbs
• Country of Origin: China (Mainland)

Fitment

Fits V-twin motorcycles including Harley-Davidson and Indian Motorcycle models that use OEM-style relay switches for headlight beam control.

Frequently Asked Questions

What does this relay do?

Controls switching between high-beam and low-beam headlight operation. When your dimmer switch engages, this relay routes power to the correct bulb circuit.

Is this a direct bolt-in replacement?

Yes — it's built as a direct OEM-style replacement, so it bolts into the existing relay location without modification.

Will this work on my Harley or Indian?

Yes, this V-twin relay is compatible with both Harley-Davidson and Indian Motorcycle electrical systems that use this relay style.

What's included?

The relay switch only. Mounting hardware and wiring connectors are standard OEM type.