High Performance Spark Plugs for Harley-Davidson OEM 3-4 R5670-5

High Performance Spark Plugs for Harley-Davidson 1948-1974

8.86 €
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High Performance Spark Plugs for Harley-Davidson OEM 3-4 R5670-5

High Performance Spark Plugs for Harley-Davidson 1948-1974

8.86 €
  • High-performance spark plugs for Drag Specialties for Harley-Davidson
  • Conventional style short spark plugs, available with original heat range
  • Unique appearance with a black ceramic body and a deep red logo or writing
  • The insulator is made of 95% pure alumina, features strong thermal shock resistance and superior insulation
  • The insulator's multi-rib design eliminates flashover
  • Nickel-plated housing prevents rust and corrosion
  • Multi-layer gaskets and heat-pressing process ensure a tight, leak-free seal
  • The copper core electrode prevents oxidation and corrosion, has good electrical and thermal conductivity, and creates a long spark plug life.
  • Sold in pairs
  • For models:
    • Panhead 1948-1965
    • Shovelhead 1966-1974
  • Replaces HD OEM: 3-4 and R5670-5

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