fits model: Ds, Flst, Heritage. make: Harley. year: 1986–1990.

( Brand: Drag Specialties ), ( Manufacturer Part Number: 8470789 ), ( Part Type: Spark Plug ), ( Warranty Details: See Manufacturer )
Introducing the 1986-1990 DS Performance Spark Plugs for Harley-Davidson FLST Heritage models, part number 8470789. These high-performance spark plugs are specifically designed to enhance the ignition system of your classic Harley-Davidson motorcycle, providing superior performance, reliability, and longevity.
The DS Performance spark plugs are made with a nickel-plated copper core, which offers excellent heat conductivity and durability. This ensures that the plug remains cool even under high-load conditions, reducing the risk of pre-ignition and misfires. The insulator nose is made of high-quality porcelain, providing a reliable electrical connection and excellent resistance to wear and tear.
The DS Performance spark plugs feature a tapered ground electrode, which provides a more focused spark, improving combustion efficiency and reducing fuel consumption. The electrode is also made of nickel-plated copper, ensuring a long lifespan and resistance to corrosion. The gap between the electrode and the center electrode is precision-engineered to provide optimal spark timing, enhancing engine performance and reducing emissions.
The DS Performance spark plugs are designed to fit directly into your Harley-Davidson FLST Heritage engine, making installation easy and hassle-free. The plugs come with a reusable copper gasket, which ensures a tight seal and prevents fuel leakage. The plugs also come with a heat range rating of NK, which is suitable for street use and provides a good balance between performance and longevity.
In summary, the 1986-1990 DS Performance Spark Plugs for Harley-Davidson FLST Heritage models are a great investment for any classic Harley-Davidson owner. These high-performance plugs offer superior heat conductivity, durability, and combustion efficiency, ensuring a reliable and enjoyable riding experience. With their precision-engineered design and easy installation, these plugs are a great way to enhance the performance of your classic Harley-Davidson motorcycle.
Pros of using 1986-1990 DS Performance Spark Plugs for Harley-Davidson FLST Heritage:1. Improved Performance: DS Performance spark plugs are designed to provide better ignition, which can lead to improved engine performance, including increased horsepower and torque.
2. Longer Lifespan: These spark plugs have a longer lifespan compared to standard spark plugs, reducing the frequency of replacement.
3. Enhanced Fuel Efficiency: DS Performance spark plugs can help enhance fuel efficiency, reducing the cost of gas over time.
4. Durability: The materials used in DS Performance spark plugs are designed to withstand the harsh conditions of a motorcycle engine, ensuring reliable performance.
Cons of using 1986-1990 DS Performance Spark Plugs for Harley-Davidson FLST Heritage:1. Higher Price: DS Performance spark plugs are typically more expensive than standard spark plugs.
2. Potential Compatibility Issues: While these spark plugs are designed to fit the Harley-Davidson FLST Heritage, it's essential to ensure they're the correct fit before installation.
3. Improper Installation: If not installed correctly, these spark plugs may not function optimally, leading to reduced performance.
Conclusion:While DS Performance spark plugs for the Harley-Davidson FLST Heritage come with several benefits, such as improved performance, longer lifespan, enhanced fuel efficiency, and durability, they also have some drawbacks, including a higher price, potential compatibility issues, and the risk of improper installation.
If you're looking to enhance the performance of your Harley-Davidson FLST Heritage and are willing to invest in a higher-priced spark plug, DS Performance spark plugs could be a good choice. However, it's crucial to ensure they're compatible with your bike and install them correctly to reap their full benefits.
Recommendation:Before making a purchase, it's essential to research the specific DS Performance spark plug model for your Harley-Davidson FLST Heritage to ensure they're a good fit for your motorcycle. Consider consulting a Harley-Davidson mechanic or a knowledgeable parts dealer to ensure you're making the best decision for your bike.
Multi rib design of the insulator eliminates flash over. Nickel plated housing prevents oxidation and corrosion. Copper core electrode prevents oxidation and corrosion, has good electrical heat conductivity creates long spark plug service life.
Insulator is made of 95 pure alumina, features strong resistance to heat shock and superior insulation.
Sold in pairs note: equivalent to Gk brp7es-11 spark plugs. Ds performance spark plugs cold Harley Flst Heritage conventional with a black ceramic body and bold red logo script.
Multi-layer gaskets and heat crimping process ensure a leak free, gas tight seal.