Superior construction for serious power, Versatile plugs with wide operating heat ranges prevent fouling from running too cool and preignition from running too hot, Features high alumina ceramics for improved heat dissipation and electrical insulation, deep-seated copper core for a wider heat range and a nickel alloy tip for longer life Coppers heat conductivity and electrical properties are superior to conventional plugs. Each rating has a wide range of operating temperature. Optimum performance. Monday - Closed Wide heat range is crucial for optimum engine perfor- mance.
Details
Longer insulator noses to protect against fouling
Trivalent plating eliminates need for anti-seize
Copper cored centre electrode
High-grade alumina silicate ceramic
Cold-rolled Threads prevent cross Threading and damage to cylinder heads
c7hsa spark plug
Reviews
Mirela
Inexpensive and does the job. Works perfect on my zs155 engine! Good quality though.
Grant Robson
✊😎🍻. THE CANDLES COME WITHOUT THE “LITTLE HAT”. MAH
jorge galeano
. ! Truthfully, after all these years I can't really tell the difference between one plug or another, so I just stick with high-grade regardless. Replacing a Autolite 4194 brand with NGK c7hsa, might be because it's just new but I am happy overall.
Tod P.
So it's always back and forth between NGK and three electrode iridium. Seems to be revving better, Used on my 110cc SSR pit. Appreciate ya! Got my 1977 Honda Trail 70 running again.
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Joined in 2023 
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Joined in 2023 
82 
63 
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