DRAG SPECIALTIES MC-DRAG040 Relay Starter Brake Light Fuel Pump

( Brand: Drag Specialties ), ( Part Type: Fuel Starter Brake Light Pump ), ( Manufacturer Part Number: MC-DRAG040 ), ( Country Of Origin: China ), ( Style: Star/brake Relay31504-91a )

Review DRAG SPECIALTIES Relay Starter Brake Light And Fuel Pump Harley

Introducing the MC-Drag040 relay, a must-have component for Harley-Davidson motorcycles requiring a starter, brake light, and fuel pump system. This high-performance relay is specifically designed to ensure reliable and efficient operation of these vital systems.

The MC-Drag040 relay comes with four independently controlled switching circuits, each capable of handling up to 40 amperes of current. This makes it an ideal solution for Harley-Davidson models that require separate switches for the starter, brake light, and fuel pump.

This relay is constructed from premium materials, including a robust housing made from impact-resistant nylon and gold-plated contacts for superior conductivity and longevity. The gold-plated contacts are also resistant to corrosion, ensuring consistent performance even in harsh environments.

The MC-Drag040 relay features a built-in diode for each circuit, which provides reverse polarity protection and prevents voltage spikes from damaging sensitive electrical components. This is especially important for the fuel pump circuit, which can be susceptible to damage from voltage surges.

Installation of the MC-Drag040 relay is a straightforward process, with clear markings on the relay housing indicating the correct position for each circuit. The relay is also compatible with most aftermarket wiring harnesses, making it a versatile choice for custom Harley-Davidson builds.

In summary, the MC-Drag040 relay is an essential component for any Harley-Davidson motorcycle that requires separate switches for the starter, brake light, and fuel pump systems. Its high current handling capacity, premium construction, and built-in diodes make it a reliable and efficient solution that ensures the optimal performance of these vital systems.

Buying an MC-Drag040 relay for a Harley-Davidson motorcycle to power the starter, brake light, and fuel pump comes with several advantages and disadvantages.

1. Improved Reliability: The MC-Drag040 relay is a heavy-duty aftermarket relay specifically designed for Harley-Davidson motorcycles. It can handle the increased electrical load of starting the engine, operating the brake light, and powering the fuel pump, which can lead to improved reliability and fewer electrical issues.

2. Separate Circuits: By using a separate relay for these functions, you can ensure that each circuit has its dedicated power source, reducing the risk of electrical interference between them. This can lead to better performance and longevity of the various systems.

3. Convenience: Having one relay handle these functions can simplify wiring and make installation easier, as you only need to connect one relay instead of three separate ones.

1. Cost: The MC-Drag040 relay may cost more than purchasing separate relays for each function. However, the convenience and reliability benefits may outweigh the cost difference for some riders.

2. Complexity: While having one relay for multiple functions can simplify wiring in some cases, it can also add complexity in others. For instance, if one of the functions fails, it may be more challenging to diagnose the issue since it could be related to the relay or the specific function.

3. Potential Compatibility Issues: Ensure that the MC-Drag040 relay is compatible with your specific Harley-Davidson model and year before purchasing. Failure to do so could result in compatibility issues and potential electrical problems.

The MC-Drag040 relay can offer improved reliability, separate circuits, and convenience when powering the starter, brake light, and fuel pump on a Harley-Davidson motorcycle. However, it may come with a higher cost and potential complexity compared to using separate relays for each function. Ultimately, the decision to purchase an MC-Drag040 relay depends on your specific needs, budget, and technical capabilities. If you value the benefits of a single relay and are confident in its compatibility with your motorcycle, it may be a worthwhile investment. Otherwise, separate relays might be a more cost-effective and straightforward solution.

If you're looking for a reliable and convenient solution for powering the starter, brake light, and fuel pump on your Harley-Davidson motorcycle, consider purchasing an MC-Drag040 relay. However, ensure that it is compatible with your specific model and year before buying. If you're on a tighter budget or prefer a more straightforward wiring solution, consider purchasing separate relays for each function.

part # mcdrag040 prices

• $16.00-$21.98

specifications ignitioncompo:

• for makes: Harley
• brand: Drag Specialties
• part type: Fuel Starter Brake Light Pump
• manufacturer part number: MC-DRAG040
• country of origin: China
• style: Star/brake Relay31504-91a

shipping ignitioncompo:

• type: Fixed
• service: FedEx Ground / FedEx Home Delivery
• carrier: FedEx
• transit: 3-8 Days
• class: Standard
• cost: $9.95

offer ignitioncompo:

• started: March 4, 2026
• availability: In Stock
• sold: 0
• options: Ship-to-home
• quantity: 1

returns ignitioncompo:

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

payments ignitioncompo:

• credit card: Discover
• other
• wallet: Google-pay

general ignitioncompo:

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

seller ignitioncompo:

• # reviews: 22160
• rating: 99.6%

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