Selecting the right glow plug for your 4-stroke can make the difference between an engine that runs reliably sweet, with perfect tick-over-idle, or constant dead sticks. Glow plugs are especially critical in 4-stroke engines because the element is re-energized with heat only every other cycle, and the cool air fuel mixture enters the combustion chamber right next to the plug. So far the O.S. F-plug has dominated the 4-stroke scene, but now Hangar 9's got a plug that'll "heat up" the competition.

Hangar 9's new 4-stroke Super Plug features a heavy-duty .008" platinum alloy element and extended "hose nose" tip that extends into the combustion chamber, isolating the element from the cool air/fuel mixture. In direct comparisons with the F-plug, in a variety of applications- including inverted mounted Saito .91s, multi-cylinders, and two Saito 1.80s- the Super Plug gave equal idle and transition performance. And when it comes to price, the Super Plug wins hands-down!