SMP Ignition Sensor - Assembly

SMP ignition sensor assembly for V-twin motorcycles, featuring a hall-effect sensor for precise timing detection. Built-in voltage regulation and reverse battery protection ensure reliable starting and smooth engine operation across temperature extremes.

Features

• Direct OEM replacement
• Hall-effect sensor for accurate timing position detection
• Built-in voltage regulation
• Reverse battery protection
• Superior temperature stability

Specifications

• Brand: SMP
• Manufacturer Part #: MCSPA3
• UPC: 091769529864
• Length: 8.7 in
• Width: 3.9 in
• Height: 1.6 in
• Weight: 0.18 lbs

Fitment

Fits V-twin motorcycles including Harley-Davidson and Indian Motorcycle models that use OEM-compatible ignition sensor mounts.

Frequently Asked Questions

Is this a direct replacement for my bike's stock sensor?

Yes — this is a direct OEM replacement. Verify your current sensor part number matches before ordering.

What does the hall-effect sensor do?

It detects the precise position of the crankshaft to tell the ignition when to fire, ensuring accurate timing for smooth starts and idle.

Does it work in cold weather?

Yes — built-in temperature stability keeps the sensor accurate across a wide temperature range, including cold starts.

What's included in the assembly?

The complete sensor assembly with voltage regulation and protective circuitry. Installation typically requires connecting to your existing harness.