SMP Relay Switch - Harley & Indian V-Twin
About SMP
Standard Motor Products supplies ignition, sensor and electrical components across the automotive and powersports markets, with V-twin parts covering switches, sensors and ignition hardware.
Achieve reliable starting performance with the SMP Relay Switch, engineered as a direct OE replacement for V-twin motorcycles. This switch features a heavy-duty brightly finished case and proven relay internals, trusted by Harley-Davidson and Indian Motorcycle riders. It's built to deliver consistent electrical function.
Why riders pick this
- Direct OE-style replacement for V-twin motorcycles
- Ensures reliable starting performance
- Heavy-duty construction with a bright finish
- High-performance relay internals
A critical component in your V-twin's starting circuit, the relay switch ensures that power is delivered efficiently to the starter motor. When this part begins to fail, you might experience frustrating issues like a clicking sound without engine crank. The SMP Relay Switch is designed to resolve these problems, providing a robust and dependable solution that restores your bike's ability to start reliably every time.
Power Your Ride with Confidence
- Direct OE-style replacement for straightforward installation
- Reliable starting performance for V-twin engines
- Heavy-duty brightly finished case for durability
- High-performance relay internals for consistent function
Engineered for V-Twin Demands
Whether you're replacing a worn-out unit or performing a preventative upgrade, this SMP Relay Switch is an excellent choice for your Harley-Davidson or Indian Motorcycle. Its design focuses on durability and consistent operation, ensuring your V-twin is always ready for the road. Pair this with a healthy battery and clean terminals for an optimal starting system.
Specifications
- Brand: SMP
- Manufacturer Part #: MCRLY9
- UPC: 727943131850
- Length: 2.65 in
- Width: 3.9 in
- Height: 2.2 in
- Weight: 0.02 lbs
- Country of Origin: Japan
Common questions
Will this relay switch work on my Harley-Davidson?
Yes, this SMP relay is a direct OE replacement designed for Harley-Davidson V-twin engines and is also compatible with Indian Motorcycle platforms. Confirm fitment with 'Shop by Bike'.
What is the function of a relay switch on a motorcycle?
The relay controls the electrical path to the starter motor, ensuring reliable cranking even at low battery voltage by allowing a small current to switch a larger current.
How do I know if my relay switch has failed?
Symptoms include a clicking sound when turning the key but no engine cranking, or intermittent starting issues, even with a fully charged battery.
Ordering from Vtwinbikers
- Brand new, sourced through authorized US distribution — never used, never grey-market.
- Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order.
- Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.
| BRAND | SMP |
| TYPE | Switches |
| SKU | 275-01097 |
| WEIGHT | 0.02 lb |
