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

( Brand: Drag Specialties ), ( Manufacturer Part Number: 8470651 ), ( Part Type: Spark Plug ), ( Warranty Details: See Manufacturer )
Introducing the 1986-1990 DS Performance Spark Plugs specifically designed for Harley-Davidson FLST Heritage models. These high-performance spark plugs are a must-have upgrade for your classic Harley, ensuring optimal engine performance and longevity.
Crafted with a premium nickel-plated copper center electrode and a high-temperature nickel alloy ground electrode, these spark plugs deliver a powerful spark that ignites the fuel-air mixture more efficiently. This results in improved combustion, increased horsepower, and smoother engine operation.
The DS Performance spark plugs are engineered with a heat range of 8.5, making them suitable for Harley-Davidson FLST Heritage engines. The heat range ensures that the plugs maintain a consistent operating temperature, preventing premature fouling and promoting longer spark plug life.
The DS Performance spark plugs are also equipped with a high-quality insulator that reduces voltage drop, ensuring a reliable spark in all conditions. The insulator is also designed to withstand the high temperatures and vibrations produced by the Harley-Davidson engine, ensuring durability and reliability.
Installing these DS Performance spark plugs is a straightforward process, and they are a direct replacement for the OEM spark plugs. With their unique design and high-quality materials, these spark plugs are an excellent investment for any Harley-Davidson FLST Heritage owner looking to enhance their bike's performance and reliability.
In conclusion, the 1986-1990 DS Performance Spark Plugs for Harley-Davidson FLST Heritage models provide a powerful spark, improved combustion, and increased horsepower. Their heat range, insulator, and high-quality materials ensure a reliable and long-lasting performance, making them an excellent upgrade for your Harley-Davidson FLST Heritage.
Pros of using 1986-1990 DS Performance Spark Plugs (Harley-Davidson FLST Heritage 8470651 Specialties):1. Improved engine performance: DS Performance spark plugs are designed to provide better ignition, which can result in improved engine performance, including increased horsepower and torque.
2. Longer lifespan: DS Performance spark plugs are made with high-quality materials and are designed to last longer than standard spark plugs. This means you may not have to replace them as often, saving you money in the long run.
3. Enhanced fuel efficiency: The improved ignition provided by DS Performance spark plugs can also lead to better fuel efficiency, as the engine uses fuel more efficiently.
Cons of using 1986-1990 DS Performance Spark Plugs (Harley-Davidson FLST Heritage 8470651 Specialties):1. Higher price: DS Performance spark plugs are typically more expensive than standard spark plugs. This may be a consideration if you are on a tight budget.
2. Requires specialized tools: DS Performance spark plugs may require specialized tools for installation, which you may not have on hand.
Conclusion:Overall, DS Performance spark plugs can provide improved engine performance, longer lifespan, and enhanced fuel efficiency for your Harley-Davidson FLST Heritage. However, the higher price and potential need for specialized tools are drawbacks that you should consider before making a purchase. If you are willing to invest in better performance and are willing to pay for the specialized tools if needed, DS Performance spark plugs may be a good choice for you.
Recommendation:If you are looking for high-performance spark plugs for your Harley-Davidson FLST Heritage, I would recommend considering DS Performance spark plugs. However, I would recommend doing your research and comparing prices from different retailers to ensure you are getting the best deal. Additionally, consider whether you have the specialized tools needed for installation or if you are willing to purchase them.
Multi-layer gaskets and heat crimping process ensure a leak free, gas tight seal. Multi rib design of the insulator eliminates flash over. Fit guide model performance spark than stock spark plug typeresistorthread12mm thread reach 3 4 in. Ds performance spark plugs hot Harley Flst Heritage conventional with a black ceramic body and bold red logo script.
Insulator is made of 95 pure alumina, features strong resistance to heat shock and superior insulation.
Wrench size 5 8 in. Sold in pairs note: equivalent to Gk brp4es-11 spark plugs. Copper core electrode prevents oxidation and corrosion, has good electrical heat conductivity creates long spark plug service life.
Nickel plated housing prevents oxidation and corrosion.