fits model: Ds, Classic. make: Harley. year: 1980–1991.

( Brand: Drag Specialties ), ( Manufacturer Part Number: 8470658 ), ( Part Type: Spark Plug )
Introducing the 1980-1991 Harley-Davidson Flathead Twin Cylinder Spark Plug (Part Number: 8470658), a classic component that is essential for maintaining the performance and reliability of your vintage Harley-Davidson motorcycle. This spark plug is a direct replacement for the original part that was installed in your Harley-Davidson FLTC models during its production years.
The 8470658 spark plug is specifically designed for Harley-Davidson Flathead Twin Cylinder engines, which were widely used in various models during the 1980s and 1990s. This spark plug features a high-quality nickel alloy center electrode, which ensures excellent ignition performance and prolongs the lifespan of the plug. The insulator nose is made of porcelain, providing excellent heat resistance and durability.
One of the standout features of this spark plug is its unique gap size of 0.028 inches. This specific gap size is crucial for optimal ignition and combustion in the engine, ensuring smooth and powerful operation. The plug also features a copper core and a copper ground electrode, which help to reduce heat transfer and improve performance in high-temperature environments.
The 8470658 spark plug is easy to install, requiring no specialized tools or equipment. It is compatible with both stock and aftermarket ignition systems, making it a versatile choice for Harley-Davidson enthusiasts. The plug is also sealed for protection against moisture and contaminants, ensuring reliable operation even in harsh weather conditions.
In conclusion, the 1980-1991 Harley-Davidson Flathead Twin Cylinder Spark Plug (Part Number: 8470658) is a high-quality replacement part that is essential for maintaining the performance and reliability of your classic Harley-Davidson FLTC model. Its unique features, such as the high-quality nickel alloy center electrode, porcelain insulator nose, and copper core, make it an excellent choice for Harley-Davidson enthusiasts who want to keep their vintage motorcycles running at their best.
Pros of buying a 1980-1991 Harley-Davidson Flathead Engine (FLC) spark plug with part number 8470658:1. Authenticity: The FLC engine is a classic Harley-Davidson engine that has been used in many of their models over the years. Using the original spark plug can help maintain the authenticity of your bike.
2. Reliability: This spark plug is designed for Harley-Davidson engines and is known for its reliability. It can provide consistent performance and spark, which can help improve the overall performance of your bike.
3. Availability: Spark plugs are a common replacement part, and the 8470658 is a widely available part for the FLC engine. This means that you can easily find replacements if needed.
4. Cost-effective: Compared to other replacement parts, spark plugs are relatively inexpensive. This can help save you money in the long run.
Cons of buying a 1980-1991 Harley-Davidson Flathead Engine (FLC) spark plug with part number 8470658:1. Compatibility: While the 8470658 is a common part, it may not be compatible with all models of Harley-Davidson bikes. It is specifically designed for the FLC engine, so it may not work with other engine types.
2. Performance Limitations: While the 8470658 spark plug is reliable, it may not provide the same performance as a more modern spark plug. If you are looking to improve the performance of your bike, you may want to consider a more advanced spark plug.
3. Limited Technology: The 8470658 spark plug is an older model and may not benefit from the latest technology in spark plug design. This could potentially limit the performance of your bike.
Conclusion:The 1980-1991 Harley-Davidson Flathead Engine (FLC) spark plug with part number 8470658 is a reliable and cost-effective option for maintaining the authenticity and performance of your classic Harley-Davidson bike. However, it may not be compatible with all models and may not provide the same performance as a more modern spark plug. If you are looking to upgrade the performance of your bike, you may want to consider a more advanced spark plug.
Recommendation:If you are looking to maintain your classic Harley-Davidson and want to stick with the original parts, the 8470658 spark plug is a great option. It is reliable, widely available, and relatively inexpensive. However, if you are looking to improve the performance of your bike, you may want to consider a more advanced spark plug. Consult with a Harley-Davidson expert or do thorough research to ensure that the spark plug you choose is compatible with your bike and will provide the performance you are looking for.
Copper core electrode prevents oxidation and corrosion, has good electrical and heat conductivity and creates long spark plug service life. Multi layer gaskets and heat crimping process ensure a leak free, gas tight seal.
Thread reach. Ds performance spark plugs hot Harley fltc Classic conventional spark plugs with a black ceramic body and bold red logo script. Multi rib design of the insulator eliminates flash over. Sold in pairs note equivalent to Gk brp4es 11 spark plugs.
Fit guide model performance spark than stock thread 12 size 5 8 in. Insulator is made of 95 pure alumina, features strong resistance to heat shock and superior insulation.
Nickel plated housing prevents oxidation and corrosion.