SMP Relay Switch

SMP relay switch for V-twin motorcycles, delivering consistent and reliable starting performance as a direct OE-style replacement. Built with a heavy-duty finished case and engineered for long life in demanding riding conditions.

Features

• Direct OE-style replacement relay
• Heavy-duty brightly finished case
• Consistent and reliable starting performance
• Long-life construction

Specifications

• Brand: SMP
• Manufacturer Part #: MCRLY8
• UPC: 025623108339
• Length: 3.95 in
• Width: 2.65 in
• Height: 1.7 in
• Weight: 0.02 lbs
• Country of Origin: China (Mainland)

Fitment

Fits V-twin motorcycles including Harley-Davidson and Indian Motorcycle models.

Frequently Asked Questions

Is this an OEM part or an aftermarket equivalent?

Direct OE-style replacement built to match factory specifications and performance.

Will this fit my Harley or Indian?

Yes — this relay is compatible with V-twin motorcycles including Harley-Davidson and Indian Motorcycle models.

How do I know if my relay switch needs replacement?

Signs include difficulty starting, weak starter engagement, or intermittent starting issues. A failing relay may also cause electrical clicks without engine turnover.

What's the difference between this and a stock relay?

SMP relays are built with the same heavy-duty construction and finish as factory parts, engineered for long life and consistent starting performance.