Mercury Quicksilver ILFR6GE Laser Iridium Spark Plug
- Brand:
- Mercury
- Part no:
- 889246Q39
Where to buy
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This is the Mercury / Quicksilver ILFR6GE, a Laser Iridium series spark plug, part number 889246Q39. It comes pre-gapped to the engine maker's specification. It has an NGK alumina silicate ceramic insulator and a ribbed suppressor seal. Mercury and Quicksilver products carry a 1 year factory warranty. Use only the plug named in your engine's owner's manual.
Our take
The ribbed suppressor seal on the ILFR6GE is there to stop spark flash over, and the ceramic insulator is NGK alumina silicate. The plug comes pre-gapped, but the gap should still be checked before it goes in.