Motorcycle and Outboard motor spark plug thread repair

Stripped spark plug threads in aluminum cylinder heads can be fixed permanently if done correctly. There is a new product that was developed specifically to solve this problem. Full-Torque spark plug thread repair inserts for aluminum cylinder heads is the perfect solution.  Made of aluminum and hard anodized for strength along with unique patented Spiralhook threads on the outside they assure correct heat transfer of the spark plug.

All aluminum cylinder heads produced by all manufacturers occasionally have this problem. Motorcycles, snowmobiles, outboard boat motors, jet skies, chain saws, lawn mowers and high performance race cars all end up with stripped spark plug threads from time to time. Air cooled engines have a very high incidence of stripped threads because they operate at higher temperatures. Motorcycles spark plug threads strip at a very high rate due to higher operating temperatures and high performance. Outboard motor spark plug threads strip because the work hard for hours at a time running at high RPM. Ford Triton engines develop stripped threads when the plugs get loose due to the difference in thermal expansion between the aluminum and the steel spark plug shell. Full-Torque spark plug thread repair inserts allow for full torque of the spark plug to keep it from coming loose.

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