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Thunderbolt

Glow Plug - 4-Stroke

The Thunderbolt line of Glow Plugs are made with only the highest grade materials. Manufactured in the USA to achieve the quality standards demanded by performance engines.

115490


More Information

  • The only plugs you can buy with exotic platinum-rhodium alloy coils
  • Thunderbolt elements glow hotter, start engines faster
  • Best idle performance of any brand of glow plug
  • Best transition to full throttle
  • Best plug life of any brand
  • Coils are welded (not staked) to the plug body for greatest dependability
  • Coils are triple checked for continuity and integrity
  • Solid machined idle bars are welded on and will not come off (R/C PLUGS ONLY)
  • Patented Bellville washer applied with multi-ton press to center electrode, seals against leakage past stem
  • Space age insulator ring surrounds center electrode further sealing against leaks
  • Copper compression washer seals against any possible leaks past the precision-cut threads
  • Electroless nickel plating or black anodized finish on plug exterior prevents rust, gives long-lasting luster
  • Individually packed in blister cards to prevent coil damage from other glow plug stems