- Will these fit my Honda?
- The 6994 is a common original-equipment plug for many Honda four-cylinder and V6 engines. Check your owner's manual or the plug number on the engine cover before ordering, since fitment varies by year and model.
- Are these better than standard copper plugs?
- Yes for longevity. The iridium tip wears far more slowly, so the gap holds and the plug lasts several times longer. The gain in power or economy on a healthy engine is small.
- Do I need to gap them?
- They come pre-gapped for most applications, but check the gap against your engine's spec before installing. Do not pry on the iridium tip; adjust the ground electrode only.
- How many plugs does my car need?
- A four-cylinder needs four, a V6 needs six, and a V8 needs eight. This ten-pack covers a V6 with spares or an inline-four for two changes.
- How often should they be replaced?
- Iridium plugs commonly last 60,000 to 100,000 miles. Follow the interval in your Honda's maintenance schedule, which may be shorter for older engines.
- How can I tell genuine NGK plugs from fakes?
- Buy from a reputable seller and inspect the box printing, the NGK logo on the insulator and the electrode finish. Genuine plugs have crisp markings and consistent threads.
- Where is the NGK 10 Pcs 6994 Iridium Plugs cheapest?
- At West Marine, for $19.99, 57% under what the other stores charge, as of our latest check.
- Where can I buy the NGK 10 Pcs 6994 Iridium Plugs?
- 4 stores we checked sell it, including West Marine, TWIST, The Twister Group, Sixity.