STANDARD MOTOR PRODUCTS MC-SPA3 Ignition Sensor

( Brand: Standard Motor Products ), ( Part Type: Ignition Sensor Motor ), ( Warranty Details: See Manufacturer ), ( Unit Type: Unit ), ( Compatible Make: Harley Davidson ), ( Oe/oem Part Number: 3240094 ), ( Manufacturer Part Number: MC-SPA3 ), ( Universal Fitment: No ), ( Country/region Of Manufacture: United States ), ( Compatible Year: 2003, 2002, 2001, 2000, 1999, 1998, 1997, 1996, 1995, 1994 )

Review STANDARD MOTOR PRODUCTS Ignition Sensor Assembly Harley fits SPORTSTER GLIDE ROAD KING 1994–2003

The Standard Motor MC-SPA3 ignition sensor is a crucial component for Harley-Davidson Sportster Glide and Road King models manufactured between 1994 and 2003. This sensor plays a vital role in the ignition system by providing the necessary information to the engine control module to time the spark plugs for optimal combustion.

The MC-SPA3 ignition sensor is a compact and robust device, designed to withstand the harsh conditions of a motorcycle environment. It features a three-wire design, with each color-coded wire serving a distinct function. The yellow wire is the power input, the brown wire is the ground connection, and the white wire is the signal output.

The sensor itself is a Hall Effect sensor, which operates by detecting the magnetic field produced by a rotor. As the engine crankshaft turns, the rotor passes by the sensor, generating a voltage signal that is sent to the engine control module. The engine control module uses this signal to time the spark plugs, ensuring a smooth and efficient combustion process.

The MC-SPA3 ignition sensor is known for its durability and reliability, making it a popular choice among Harley-Davidson riders. However, like all mechanical components, it can wear out over time, especially with heavy usage or in harsh riding conditions. Symptoms of a failing ignition sensor include misfiring, difficulty starting the engine, and rough idling.

Installing the MC-SPA3 ignition sensor is a relatively straightforward process, but it is recommended that the job be done by a qualified mechanic to ensure proper installation and function. The sensor is located near the crankshaft, and the installation process involves removing the old sensor, connecting the new sensor to the wiring harness, and securing the sensor in place.

In summary, the Standard Motor MC-SPA3 ignition sensor is an essential component for Harley-Davidson Sportster Glide and Road King models. Its role in the ignition system and its durability make it a reliable choice for riders. However, like all mechanical components, it can wear out over time and may need to be replaced. Installing the new sensor is a job best left to a qualified mechanic to ensure proper function and safety.

The Harley-Davidson MC-SPA3 ignition sensor is a crucial component in the fuel injection system of Harley-Davidson Sportster and Road King motorcycles manufactured between 1994 and 2003. Replacing a faulty ignition sensor can improve the performance and reliability of your bike. Here are some pros and cons of buying and installing this ignition sensor.

1. Improved Performance: A new ignition sensor can help your Harley-Davidson run more smoothly and efficiently. It ensures accurate timing of the fuel injection, which results in better combustion and improved power delivery.

2. Better Fuel Economy: By ensuring optimal fuel injection timing, a new ignition sensor can help you save fuel and improve your bike's overall fuel economy.

3. Reduced Emissions: A properly functioning ignition sensor can help reduce harmful emissions by ensuring that your bike's fuel injection system is working at its best.

4. Convenient: The MC-SPA3 ignition sensor is relatively easy to install, making it a convenient option for DIY motorcycle enthusiasts.

5. Cost-Effective: Compared to other replacement parts, the ignition sensor is a relatively affordable upgrade for your Harley-Davidson.

1. Potential for False Starts: A malfunctioning ignition sensor can cause false starts or no starts, which can be frustrating and dangerous. Installing a new sensor can help prevent these issues.

2. Requires Technical Knowledge: While the installation process is relatively straightforward, it does require some technical knowledge and experience with motorcycle electronics.

3. Risk of Damage: During installation, there is a risk of damaging other components or wiring, which could lead to additional repair costs.

4. Availability: The MC-SPA3 ignition sensor may not be readily available at all Harley-Davidson dealerships or motorcycle parts stores, making it necessary to order online or from a specialized parts supplier.

The Harley-Davidson MC-SPA3 ignition sensor is a worthwhile investment for any Harley-Davidson Sportster or Road King owner looking to improve the performance, fuel efficiency, and reliability of their bike. While there are some potential cons to consider, such as the need for technical knowledge and the risk of damage during installation, the benefits far outweigh the drawbacks. We recommend purchasing a new ignition sensor from a reputable supplier and following the installation instructions carefully to ensure a successful and hassle-free installation.

part # mcspa3 prices

• $53.40-$70.57

specifications ignitioncompo:

• for models: Sportster, Glide, Road, King
• for makes: Harley
• for years: 1994-2003
• brand: Standard Motor Products
• part type: Ignition Sensor Motor
• warranty details: See Manufacturer
• unit type: Unit
• compatible make: Harley Davidson
• oe/oem part number: 3240094
• manufacturer part number: MC-SPA3
• universal fitment: No
• country/region of manufacture: United States
• compatible year: 2003, 2002, 2001, 2000, 1999, 1998, 1997, 1996, 1995, 1994

general ignitioncompo:

• condition: New
• Motorcycle Scooter Parts Accessories > Electrical Ignition Components > Other Electrical Ignition Components

shipping ignitioncompo:

• transit: 5-11 Days
• type: Fixed
• carrier: USPS
• service: USPS Ground Advantage
• class: Standard
• cost: $5.00

returns ignitioncompo:

• paid by: Seller
• time: 30 Days
• policy: Returns Accepted

seller ignitioncompo:

• # reviews: 170
• rating: 100.0%

offer ignitioncompo:

• started: September 5, 2025
• options: Ship-to-home
• availability: In Stock
• quantity: 1
• sold: 0

payments ignitioncompo:

• wallet: Paypal
• other
• credit card: Diners-club

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