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Accel U-Groove Spark Plugs For Harley Shovel 1975-1979
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Accel U-Groove Spark Plugs For Harley Shovelhead

U-Groove performance spark plugs have a patented U-shape cut into the ground electrode that produces a double wide, hot spark to ignite standard or even high compression engines. The sintered alumina heavy-duty five rib insulator eliminates flashover and overheating that occurs with high performance and long range applications. Accel U-Groove spark plugs use the purest copper/nickel alloy electrode to produce a broad heat range that is highly foul-resistant and dissipates heat better than any other material. Racing and street performance has proven that U-Groove spark plugs deliver hot spark and high performance.


  • Accel's state-of-the-art, U-Groove spark plugs with ground electrodes, copper glass inner seal and electric heat seal prevent leakage in high-compression engines
  • Permit the spark to develop a larger, fuller flash for a more complete burn
  • Sold in pairs

This Product Fits:
Harley Davidson
Electra Glide Classic FLHC 1979
Electra Glide Sport FLHS 1977, 1978, 1979
Fat Bob FXEF 1979
FLH 1975, 1976, 1977, 1978, 1979
Low Rider FXS 1977, 1978, 1979
Super Glide FX 1975, 1976, 1977, 1978, 1979
Super Glide FXE 1975, 1976, 1977, 1978, 1979
Tour Glide Classic FLTC/I 1979
Tour Glide FLT 1979
Product Style RevZilla Item # Manufacturer Product # Availability
Accel U-Groove Spark Plugs For Harley Shovel 1975-1979 961643 2403A Out of Stock


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Accel U-Groove Spark Plugs For Harley Shovel 1975-1979
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