Two Drag Specialties Spark Plugs for Harley-Davidson Twin Cam and Sportster Evolution with gold-colored metal bases and black insulators with red rings.

Drag Specialties Spark Plugs for Harley-Davidson Twin Cam and Sportster Evolution

$15.85

SKU: 108-0255

Low stock - 1 item left
Inventory on the way

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Drag Specialties Spark Plugs for Harley-Davidson Twin Cam and Sportster Evolution

Spark plugs are a part of a standard tune-up, and given how affordable they are and how much they affect your engine's performance, it makes sense to replace them at least as often as the factory recommends.

Choice of construction
- Copper-core plugs offer great conductivity and strong spark, making them a good choice for older Harley-Davidson applications where plugs are inspected frequently and replaced with minimal labor
- Iridium plugs feature fine-wire iridium that some riders feel improve idle and acceleration, especially in motorcycles that have been tuned aggressively
  - They usually have a longer service life if the motorcycle's air-fuel ratio is correct at all throttle angles
Plugs have a unique look with a black ceramic body and bold red script
Insulators are made of alumina for resistance to thermal shock and superior insulation so your hot spark doesn't leak through unwanted ground paths
Multi-rib design of the insulator helps prevent flashover (when the spark moves along the outside the plug rather than inside it)
Plating promotes long life by helping prevent oxidation and corrosion
- Nickel-plated housing on copper core plugs
- Gold-colored coating on iridium plugs
- Eliminates the need for anti-seize, use of which can negatively affect the spark's ground path
Multi-layer gaskets and heat crimping process ensure a leak-free, gas-tight seal
Sold as a pair