The Seasoned Wrench

7 Best Spark Plugs for Street Glide Motorcycles – Improve Performance and Efficiency

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Imagine your Street Glide motorcycle as a finely tuned orchestra, with each spark plug playing an essential role in creating harmonious performance. From the NGK Iridium IX DCPR7EIX Spark Plugs to the CNPAPC Upgrade Double Iridium IX Spark Plugs, the choices for enhancing your bike's efficiency are abundant. But which spark plug will truly make your engine sing? Stay tuned to discover how selecting the right spark plug can transform your riding experience, taking your Street Glide to new levels of power and precision.

Things to Note

  • Upgrade to NGK Iridium IX or Double Iridium for enhanced performance.
  • Choose spark plugs with easy installation and durability.
  • Consider compatibility with your specific Street Glide model.
  • Opt for spark plugs designed for improved throttle response.
  • Prioritize spark plugs with high-temperature resistance for efficient combustion.

NGK Iridium IX DCPR7EIX Spark Plugs for Harley Davidson Twin Cam

high performance spark plugs

The NGK Iridium IX DCPR7EIX Spark Plugs are an excellent choice for owners of Harley Davidson Twin Cam motorcycles seeking a performance boost of up to 3HP. These spark plugs, designed for 1999-2016 Harley Davidson Twin Cam models, feature an iridium electrode that's 25% smaller than platinum, reducing the voltage requirement and enhancing overall performance.

The ultra-small diameter center electrode not only extends the ignition system's life but also contributes to a smoother starting and running experience. Additionally, the new metal shell plating provides enhanced anticorrosion qualities, ensuring durability and longevity.

With positive customer reviews highlighting ease of installation and noticeable performance improvements, these NGK spark plugs come pre-gapped and are highly recommended for enhancing the performance of Harley Davidson motorcycles.

Best For: Owners of Harley Davidson Twin Cam motorcycles looking for a noticeable performance improvement and a boost of up to 3HP.

Pros:

  • Enhanced performance with up to 3HP increase
  • Iridium electrode reduces voltage requirement for improved efficiency
  • Pre-gapped and easy to install for convenience

Cons:

  • May be pricier compared to standard spark plugs
  • Compatibility limited to 1999-2016 Harley Davidson Twin Cam models
  • Some users may prefer other brands for personal preferences

NGK 6046 DCPR7EIX Spark Plug (Pack of 2)

ngk spark plug pack

Ideal for riders who frequently demand top performance from their Street Glide motorcycles, the NGK 6046 DCPR7EIX Spark Plug (Pack of 2) offers exceptional quality and reliability. Manufactured by NGK, a trusted brand known for its high-quality products, these spark plugs feature a core material of copper and a top material type of metal, ensuring durability and efficient performance.

With a thread size of 12mm x 19mm, these spark plugs are designed to fit perfectly in a variety of motorcycles, including the Street Glide. Boasting a customer rating of 4.6 out of 5 stars from 1,261 reviews, these spark plugs have gained popularity among riders for their reliability and longevity.

Upgrade your Street Glide motorcycle with the NGK 6046 DCPR7EIX Spark Plug for improved performance on the road.

Best For: Riders seeking top performance and reliability for their Street Glide motorcycles.

Pros:

  • High-quality construction with copper core and metal top material for durability.
  • Wide compatibility with motorcycles, including Street Glide models.
  • Positive customer rating and popularity for reliability.

Cons:

  • May be priced higher compared to some other spark plug options.
  • Limited availability in certain regions.
  • Some users may prefer different thread size options for specific customization needs.

CNPAPC Upgrade Double Iridium IX Spark Plugs for Harley Davidson Twin Cam

high performance spark plugs upgrade

Designed for performance enthusiasts seeking extreme ignitability and improved throttle response, the CNPAPC Upgrade Double Iridium IX Spark Plugs are an excellent choice for Harley Davidson Twin Cam motorcycles. These spark plugs feature double iridium material for peak performance, ensuring a stable spark and lower fuel consumption.

The trivalent metal plating enhances acceleration and durability, making them a reliable option for various models, including the 2000 Dyna Super Glide and 1999-2016 Harley Davidson Twin Cam. Professional car drivers trust the DCPR7EIX #3144 replacement spark plug for its high durability and compatibility with XL Sportster 883/1200, Ultra, and Suzuki Boulevard.

With positive customer reviews emphasizing performance and power gains, along with a 12-month warranty and quick resolution of concerns, the CNPAPC Upgrade Double Iridium IX Spark Plugs provide a valuable upgrade for Harley Davidson Twin Cam owners.

Best For: Performance enthusiasts looking for extreme ignitability and improved throttle response in their Harley Davidson Twin Cam motorcycles.

Pros:

  • Extreme ignitability and improved throttle response
  • Double iridium material for peak performance
  • Trivalent metal plating for outstanding acceleration and durability

Cons:

  • Some issues with thread pitch compatibility reported
  • Recommendations for gap adjustment may be needed
  • Specific model compatibility issues mentioned by users

10mm Black Spark Plug Wires for Harley H-D FLT FLHT FLHR FLTR 2009-2015

high performance black plug wires

Most suitable for owners of Harley-Davidson Street Glide motorcycles from 2009 to 2015, these 10mm Black Spark Plug Wires offer superior heat and tear protection with their spiral wound alloy conductor and 10mm thick silicone jacket.

The wires are specifically designed for Harley H-D FLT FLHT FLHR FLTR models from 2009 to 2015, ensuring compatibility and ease of installation as a direct replacement without the need for modifications.

Featuring high-quality construction with a fiberglass braid, high dielectric insulator, and dual layers of silicone, these wires provide top-notch performance and longevity.

Whether it's a FLHX Street Glide or a FLTR Road Glide, these spark plug wires cater to a wide range of Harley-Davidson models, making them a reliable choice for riders looking to enhance their motorcycles' efficiency.

Best For: Riders of Harley-Davidson FLTR Road Glide models seeking enhanced performance and longevity in their spark plug wires.

Pros:

  • Superior heat and tear protection with a 10mm thick silicone jacket
  • Easy installation as a direct replacement without modifications
  • High-quality construction with a spiral wound alloy conductor and dual layers of silicone

Cons:

  • Compatibility limited to specific Harley H-D FLT FLHT FLHR FLTR models from 2009 to 2015
  • May not fit other motorcycle models outside the specified range
  • Higher price point compared to standard spark plug wires

NGK Iridium Spark Plugs for Harley-Davidson Twin Cam and XL (4 PCS NEW)

ngk iridium spark plugs

Featuring the NGK 97637 DCPR7EIX, the NGK Iridium Spark Plugs cater specifically to Harley-Davidson Twin Cam and XL models, making them a reliable choice for Street Glide motorcycles.

Weighing 5.9 ounces, with dimensions of 7.13 x 5.43 x 0.94 inches, these spark plugs have garnered positive customer feedback, boasting a rating of 4.7 out of 5 stars from 187 ratings. They're listed as the #1,448 best seller in Automotive Replacement Spark Plugs on Amazon.

Users have praised the easy installation process and the good condition upon arrival. While some customers find the price reasonable, others consider it slightly on the higher side.

It's recommended to check the gap before installing and to exercise caution when gapping the plugs due to the small electrode size.

Best For: Riders of Harley-Davidson Twin Cam and XL models looking for reliable spark plugs with easy installation and positive customer feedback.

Pros:

  • Specifically designed for Harley-Davidson Twin Cam and XL models
  • Positive customer feedback on performance and condition upon arrival
  • Easy installation process

Cons:

  • Price may be considered slightly higher by some customers
  • Caution required when gapping the plugs due to small electrode size
  • Limited warranty information available

Spark Plug Wires for Harley H-D FLT FLHT FLHR FLTR 2009-2015, 10mm Thickness, Red Color

harley spark plug wires

With its compatibility with various Harley-Davidson models from 2009 to 2015, the 10mm thick red Spark Plug Wires for Harley H-D FLT FLHT FLHR FLTR offer a reliable choice for motorcycle enthusiasts seeking enhanced performance. These wires feature a spiral alloy conductor, high dielectric insulator, glass fiber braid, and silicone jacket, ensuring durability and efficient electrical conductivity.

The package includes two red spark plug wires, one 20' long and the other 32' long, along with two plastic ties for secure installation. Designed with a 10.5mm width and a vibrant red color, these wires not only provide a functional upgrade but also add a pop of style to your Harley-Davidson FLT FLHT FLHR FLTR model.

Best For: Motorcycle enthusiasts with Harley-Davidson FLT FLHT FLHR FLTR models seeking enhanced performance and style.

Pros:

  • Durable construction with spiral alloy conductor and high dielectric insulator.
  • Easy installation with included plastic ties.
  • Vibrant red color adds a stylish touch to the motorcycle.

Cons:

  • Limited compatibility with specific Harley-Davidson models from 2009 to 2015.
  • May not fit other motorcycle brands or models.
  • Price point may be higher compared to generic spark plug wires.

Chrome Finned Slotted Spark Plug Head Bolt Covers for Harley Touring Motorcycles

custom chrome head accessories

Ideal for Harley Touring Motorcycle owners looking to enhance the visual appeal of their bikes, the Chrome Finned Slotted Spark Plug Head Bolt Covers from XMMT offer a stylish and easy-to-install option. Made of high-quality aluminum alloy with a chrome finish, these covers are tailored to fit Harley Electra Glides, Road Glides, Road Kings 1999-2016, Street Glides, and Trikes 2009-2016.

The aftermarket 100% brand-new covers come in a kit of two for both sides of the bike. Weighing 8.8 ounces, they've dimensions of 7.8 x 4.33 x 1.81 inches. The manufacturer, XMMT, guarantees direct replacement compatibility without the need for instructions.

With a 4.4 out of 5-star rating from 196 reviews, these covers rank well in the automotive accessories category on Amazon.

Best For: Harley Touring Motorcycle owners seeking to enhance the visual appeal of their bikes with easy-to-install chrome spark plug head bolt covers.

Pros:

  • Made of high-quality aluminum alloy for durability
  • Stylish chrome finish adds a sleek look to the motorcycle
  • Tailored fit for specific Harley models from 1999-2016

Cons:

  • No instructions included for installation
  • Limited compatibility with specific Harley models
  • Relatively lightweight at 8.8 ounces may not provide substantial weight to the bike

Factors to Consider When Choosing Spark Plugs for Street Glide

When choosing spark plugs for your Street Glide, consider key factors such as:

  • Performance enhancements
  • Compatibility
  • Installation ease
  • Durability

These elements play an essential role in optimizing your motorcycle's engine performance and reliability. Make sure to assess these points carefully to select the best spark plugs for your Street Glide.

Key Selection Factors

Consider the compatibility of spark plugs with your specific Harley Davidson Street Glide model year to guarantee peak operation. Look for spark plugs that not only fit your bike but also offer enhanced ignition, throttle response, and fuel efficiency to improve your riding experience.

When selecting spark plugs, prioritize those made from durable materials like iridium or double iridium for longevity and consistent spark performance. Additionally, confirm that the gap settings and installation procedures are correct to maximize the effectiveness of the spark plugs in your Street Glide.

To make an informed decision, seek recommendations from fellow Harley Davidson riders or professional mechanics who can provide valuable insights on the best spark plug options for your specific model.

Performance Enhancements

Enhancing your Street Glide's performance through upgraded spark plugs can result in improved throttle response, fuel efficiency, and overall engine operation.

By upgrading to spark plugs that offer performance enhancements, you may experience increased horsepower, smoother acceleration, and better combustion efficiency.

Ensuring that your spark plugs are properly gapped is vital as it can optimize ignition timing, leading to a more efficient combustion process.

Spark plugs made from enhanced materials like iridium or double iridium are designed to withstand higher temperatures and provide a more stable spark, resulting in consistent performance over time.

Selecting the right spark plugs tailored to your Street Glide's engine specifications is essential to maximizing its full performance potential.

Compatibility Considerations

To guarantee peak performance for your Harley Davidson Street Glide, it's important to carefully consider the compatibility of spark plugs with your specific model and year. When choosing spark plugs, make sure they're designed for high-performance street applications and are specifically recommended for Harley Davidson motorcycles.

Look for special features or materials that enhance compatibility with your Street Glide. It's essential to verify that the spark plugs meet the necessary specifications and requirements of your Harley Davidson Street Glide's engine. Compatibility is key to maximizing the efficiency and performance of your motorcycle.

Installation Ease

For a smoother maintenance experience, prioritize spark plugs that offer easy installation for your Harley Davidson Street Glide. When selecting spark plugs, opt for ones with pre-gapped electrodes to guarantee correct spacing without the hassle of making adjustments yourself.

Look for spark plugs that come with clear installation instructions or compatibility guides to streamline the setup process. It's crucial to choose spark plugs specifically designed for your Street Glide model to ensure a perfect fit and seamless installation.

Additionally, checking customer reviews can provide valuable insight into the ease of installation experienced by others with different spark plug options. By considering these factors, you can save time and effort during maintenance tasks, making sure that your Street Glide is always running smoothly and efficiently.

Durability and Reliability

Factors contributing to the durability and reliability of spark plugs play a pivotal role in guaranteeing peak performance for your Street Glide motorcycle. The durability of spark plugs is essential for long-term performance, with factors such as electrode material, construction quality, and heat range influencing their longevity.

Choosing reliable spark plugs is essential as they ensure consistent ignition, fuel efficiency, and overall engine performance. Opting for spark plugs made with high-quality materials and robust design can help them withstand the harsh conditions of motorcycle riding.

Price Comparison Tips

Consider comparing prices from various retailers to guarantee you find the best deal on spark plugs for your Street Glide.

When evaluating prices, it's essential to also weigh the overall value provided by the spark plugs in relation to their cost. Keep an eye out for discounts, promotions, or bundles that can help you save money on your purchase. Additionally, look for retailers that offer price matching options to make sure you get the most competitive price available in the market.

Remember to factor in the warranty or support offered with the spark plugs. Sometimes, a slightly higher initial cost may be justified by a longer warranty period or better customer support, making it a more cost-efficient choice in the long run.

Maintenance Recommendations

When selecting spark plugs for your Street Glide, prioritize maintenance suggestions to optimize performance and longevity. Regularly checking and replacing spark plugs according to the manufacturer's maintenance schedule is essential for guaranteeing efficient combustion and engine operation.

Additionally, inspect spark plug wires for wear or damage, replacing them when necessary to maintain a reliable spark delivery.

Proper gap spacing is vital for maximizing performance and fuel efficiency, so make sure to adjust the spark plug gaps as recommended. Using dielectric grease on spark plug boots helps prevent moisture intrusion and ensures a secure electrical connection, reducing the risk of misfires.

For enhanced ignition performance and longer lifespan, consider upgrading to iridium or double iridium spark plugs. These premium options offer improved conductivity and durability, making them a worthwhile investment for your Street Glide.

Frequently Asked Questions

Can These Spark Plugs Be Used in Other Harley Davidson Models?

Yes, these spark plugs can be used in other Harley Davidson models. They're designed to be compatible with a range of motorcycles from the same manufacturer.

Verify to check the specific model of your Harley Davidson to confirm compatibility.

Upgrading to these spark plugs can help enhance performance and efficiency in various Harley Davidson bikes, providing a reliable and effective option for your motorcycle's maintenance needs.

Do Spark Plug Wires Need to Be Replaced Regularly?

Do spark plug wires need regular replacement?

Spark plug wires should be inspected periodically for wear and tear. If you notice cracked insulation, corrosion, or other damage, it's time for a replacement.

Regular maintenance can prevent misfires, improve engine performance, and maintain peak fuel efficiency. By replacing worn spark plug wires as needed, you can keep your motorcycle running smoothly and avoid potential issues down the road.

Are Chrome Finned Spark Plug Covers Easy to Install?

Chrome finned spark plug covers are easy to install. You simply remove the old cover and replace it with the new chrome cover. Be sure to securely fasten it to guarantee a tight fit and prevent any issues.

It's a quick and straightforward process that can add a stylish touch to your motorcycle's engine. Enjoy the easy upgrade and the enhanced look of your bike with these covers.

Will Upgrading Spark Plugs Void My Motorcycle's Warranty?

Upgrading spark plugs on your motorcycle generally won't void the warranty unless the manufacturer can prove they directly caused a problem. It's like adding custom rims to your car; if the radio breaks, they can't blame the wheels.

Still, check your warranty terms to be safe. Being informed is key to enjoying your ride worry-free!

How Do I Know When It's Time to Replace Spark Plugs in My Street Glide?

When it's time to replace spark plugs in your Street Glide, watch out for signs like rough idling, poor acceleration, or decreased fuel efficiency. Check your owner's manual for recommended replacement intervals, usually between 20,000 to 30,000 miles.

If you're experiencing any performance issues, it's a good idea to inspect and potentially replace your spark plugs sooner. Keeping your spark plugs fresh can help maintain your motorcycle's performance and efficiency.

Conclusion

As you ride through the twists and turns of life on your Street Glide motorcycle, remember that the spark plugs are like the heart of your machine, igniting passion and power.

Choose the best spark plugs to fuel your journey with efficiency and performance. Upgrade to NGK Iridium IX or CNPAPC Upgrade Double Iridium IX for a smoother ride and enhanced throttle response.

Embrace the road ahead with spark plugs that light up your path to adventure.