Quicksilver NGK IZFR6J Spark Plug 843220Q
- Brand:
- Quicksilver
- Part no:
- 843220Q
Image: Powerboat Supply
Where to buy
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This is the Quicksilver-supplied NGK IZFR6J spark plug, part 843220Q. It arrives pre-gapped to the engine maker's specification, and it changes out with an ordinary spark plug socket. The insulator is NGK alumina silicate ceramic, and the plug carries a ribbed suppressor seal. Run only the plug your owner's manual calls for, since the wrong one can cost performance and fuel economy.
Our take
The IZFR6J comes pre-gapped to the engine maker's spec, so it can go straight in with a common plug socket. Check your manual before fitting, since a wrong plug can cost power and fuel economy and may damage the engine.