SMP Relay Switch - "plug" Style Starter Relay

SMP relay switch in plug-style configuration for V-twin motorcycles, delivering consistent starter engagement and long-life reliability. Direct OEM-replacement designed for Harley-Davidson and Indian riders.

Features

• Direct OE-style replacement relay
• Heavy-duty brightly finished case
• Consistent starter performance
• Long-life design
• Plug-in installation

Specifications

• Brand: SMP
• Manufacturer Part #: MCRLY1
• UPC: 091769210540
• Length: 2.7 in
• Width: 4.4 in
• Height: 1.75 in
• Weight: 0.12 lbs
• Country of Origin: China (Mainland)

Fitment

Fits V-twin motorcycle electrical systems, including Harley-Davidson and Indian Motorcycle models.

Frequently Asked Questions

Will this relay work on my Harley or Indian?

Yes — this SMP relay is designed for V-twin motorcycles, including all standard Harley-Davidson and Indian models with plug-in relay sockets.

What does a starter relay do?

The relay switches high current from the battery to the starter motor when you press the ignition button, enabling the engine to crank.

Is this a direct plug replacement?

Yes — plug-style configuration means it drops directly into the stock relay socket with no modifications required.

How long do these typically last?

SMP relays are engineered for long life under normal riding conditions. Replace if you notice slow cranking or no-start issues.