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- Resistor Race Plug, 4 Pkg
- Resistor; Blister Pack
- U-Groove Ground Electrode
- Five-Rib Aluminum Insulator
- Copper Core Nickel/Chrome Steel
- Electric Heat Seal
- Copper-Glass Gas-Tight Seal
- Less Flame Dissipation
Since the mid 1980's, Accel's U-Groove spark plugs have set the standard for high performance spark plugs. Accel engineers developed and patented the U-Groove technology which permitted the spark to develop a much larger, hotter and fuller flash front. That effectively gave a more complete burn of the air/fuel mixture in the combustion chamber. Over the past 25 years engine head design and fuel management technology has changed.
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As a result, Accel is moving away from the U-Groove construction to the familiar "conventional" style ground electrode. In addition, the upper insulator will now be white instead of yellow, and available in convenient 4-packs. Bottom line...This one-piece construction spark plug with conventional ground electrode provides exceptional performance and value by producing:
- Hotter Spark/Faster Burn Rate for more power at high rpms
- Improved Throttle Response, Fuel Economy, and Reduced Fouling
- Reduced Mis-fires
- Purified Alumina Insulator to prevent arcing
- Machine-rolled threads to protect heads
Note: The last digit in the part number of the spark plug represents the spark plug heat range. 1 is the coldest. 7 is the hottest.
Example: 111-0111-4 is the coolest plug and 111-0116-4 is the hottest in that specific style spark plug.
Click Here for Accel Spark Plug Cross Reference
Spark Plug Heat Range Explanation, Click Here
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