HARLEY-DAVIDSON 31600054A Spark Plug Wires XG500 XG750 10MM

( Brand: Harley-davidson ), ( Manufacturer Part Number: 31600054A ), ( Type: Spark Plug ), ( Country Of Origin: United States ), ( Machine Type: Street Motorcycle )

Review HARLEY DAVIDSON 10mm Spark Plug Wires fits SCREAMIN EAGLE 2015–2020

The **Harley-Davidson 31600054A 15-20 XG500/XG750 Screamin Eagle 10mm Spark Plug Wires** are a premium, high-performance replacement for the stock ignition wires found on Harley-Davidson s XG500 and XG750 models produced between the 15th and 20th model years. Engineered to deliver superior conductivity, durability, and reliability, these wires are designed to enhance ignition efficiency while maintaining the iconic performance and throttle response that Harley-Davidson enthusiasts expect. Crafted from high-quality, heat-resistant materials, the wires feature a robust **10mm boot connection**, ensuring a secure and corrosion-free fit to the plug and coil, which is critical for maintaining consistent spark delivery under demanding riding conditions. The **Screamin Eagle branding** signifies their premium quality, with a sleek, black outer sheath that not only improves aesthetics but also provides UV resistance to prevent degradation from prolonged exposure to sunlight. Each wire is meticulously constructed with a **copper core conductor** wrapped in a protective layer of high-temperature silicone insulation, which minimizes resistance and maximizes energy transfer from the ignition system to the spark plugs. This design reduces misfires, improves cold-start reliability, and contributes to a smoother, more responsive engine operation especially under high-RPM conditions or in varying weather extremes. Whether you re restoring a classic XG500 or upgrading an XG750 for better performance, these wires are an essential component for preserving the integrity of your Harley s ignition system. Built to last, they offer a direct replacement solution that aligns with Harley-Davidson s commitment to durability and performance, ensuring your bike runs with the same power and precision as the day it left the factory.

### **Pros and Cons of Buying Harley-Davidson Spark Plug Wires (Part Number 31600054A, 15-20 XG500/XG750 Screamin Eagle 10mm)**

1. **OEM Quality and Compatibility** These are genuine Harley-Davidson parts, designed specifically for the 15-20 model year XG500 and XG750 Screamin Eagle engines. They meet Harley s engineering standards, ensuring proper fit and function without modifications.

2. **Durability and Longevity** Harley-Davidson uses high-quality materials in their spark plug wires, which are built to withstand the demands of motorcycle riding, including heat, vibration, and electrical resistance. Properly maintained wires can last the lifespan of the bike if not damaged.

3. **Reliability in Performance** Since these wires are part of the ignition system, using OEM components reduces the risk of misfires, poor starting, or erratic engine performance. They are designed to maintain consistent spark delivery, which is critical for smooth operation.

4. **Warranty Coverage** Purchasing from an authorized dealer or Harley-approved retailer often includes warranty protection, offering peace of mind in case of defects or premature failure.

5. **Easy Installation** The 10mm connection is standard for Harley-Davidson s ignition systems, and these wires are designed for straightforward replacement. No special tools or modifications are typically required beyond basic motorcycle maintenance skills.

6. **Brand Trust and Support** Harley-Davidson has a reputation for durability and aftermarket support. If issues arise, finding replacement parts or service centers is easier compared to aftermarket alternatives.

7. **Consistency with Other OEM Components** Using OEM wires ensures compatibility with other Harley parts (e.g., coils, plugs) without risking electrical interference or performance issues that can sometimes occur with non-matching aftermarket parts.

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1. **Higher Cost** Genuine Harley-Davidson parts are more expensive than aftermarket alternatives. For example, a set of these wires may cost significantly more than comparable third-party options, which could be a drawback for budget-conscious buyers.

2. **Limited Availability Outside Dealers** While these wires are widely available at Harley-Davidson dealerships, finding them at non-authorized retailers (e.g., online marketplaces) may be difficult or require verification of authenticity to avoid counterfeit parts.

3. **Potential Overkill for Some Riders** If the bike is heavily modified (e.g., with aftermarket ignition systems or high-performance tuning), OEM wires may not be the optimal choice. Some riders prefer aftermarket wires with better heat resistance or improved electrical conductivity for tuned engines.

4. **Longer Lead Times** Depending on the retailer or region, stock availability might result in longer wait times for delivery, especially if ordering from a dealer rather than an online marketplace.

5. **No Performance Upgrades** Unlike some aftermarket wires, these OEM wires do not offer performance enhancements such as faster spark delivery or improved heat dissipation. If a rider is seeking tuning benefits, they may need to look elsewhere.

6. **Potential for Overuse of "Harley Branding"** Some riders prefer to minimize the use of OEM parts in favor of aftermarket components to customize their bikes or reduce reliance on Harley s ecosystem. This could be a subjective con for those who prioritize personalization.

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Harley-Davidson s **31600054A spark plug wires** for the 15-20 XG500/XG750 Screamin Eagle are a reliable, high-quality choice for riders who prioritize OEM compatibility, durability, and warranty support. They are ideal for stock or lightly modified bikes where consistency and longevity are key. However, the higher cost and limited availability compared to aftermarket options may not justify the purchase for riders on a tight budget or those seeking performance upgrades.

For most standard riders who want to maintain their bike s factory integrity and avoid potential compatibility issues, these wires are a **strong recommendation**. If cost is a concern or the bike is heavily modified, exploring aftermarket alternatives (e.g., from brands like NGK, Champion, or specialized motorcycle wire manufacturers) could be a viable alternative while still ensuring quality.

- You value OEM reliability and warranty coverage.

- Your bike is stock or minimally modified.

- You want to avoid potential compatibility issues with other ignition components.

- You are on a budget and can verify the quality of third-party wires.

- Your bike is heavily modified and requires performance-focused components.

- You prefer customization and want to reduce reliance on Harley s parts ecosystem.

Details:

HARLEY 15-20 XG500 XG750 SCREAMIN EAGLE 10MM SPARK PLUG WIRES. Please view all pictures for exact condition before purchasing.

part #: 31600054a prices

• $29.00-$189.00

specifications cyclesparkplugs:

• for models: Screamin, Eagle
• for makes: Eagle, Harley
• for years: 2015-2020
• brand: Harley-davidson
• mpn: 31600054a
• type: Spark Plug
• country of origin: United States
• machine type: Street Motorcycle

shipping cyclesparkplugs:

• service: USPS Ground Advantage, FedEx Ground / FedEx Home Delivery, UPS Ground
• class: Standard
• cost: $11.95
• carrier: USPS, FedEx, UPS
• type: Calculated
• transit: 3-9 Days

returns cyclesparkplugs:

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

payments cyclesparkplugs:

• wallet: Paypal
• other
• credit card: Discover

seller cyclesparkplugs:

• # reviews: 13037
• rating: 100.0%
• city: Daytona Beach, Florida

offer cyclesparkplugs:

• best offers: True
• quantity: 1
• sold: 0
• options: Ship-to-home
• started: May 13, 2026
• availability: In Stock

general cyclesparkplugs:

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

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