Mercury 150-300 HP Verado — service specifications
What is the spark plug for Mercury 150-300 HP Verado — service specifications?
For Mercury 150-300 HP Verado, spark plug is NGK IZFR5G; gap is 0.028" (0.7mm), recorded from its source on 2026-08-05; source re-checked 2026-11-01.
150-300 HP Verado | NGK IZFR5G | 0.028" (0.7mm)
— seasierra.com, retrieved 2026-08-05
- Brand
- Mercury
- Model / range
- 150-300 HP Verado verified
- Spark plug
- NGK IZFR5G verified
- Gap
- 0.028" (0.7mm) verified
Where each value comes from
The value above is stated away from the sentence quoted with the answer, so the passage that states it is shown here too.
Brand
Mercury Outboards Model | Spark Plug | Gap |
— all from seasierra.com, retrieved 2026-08-05
Source
- seasierra.comhttps://seasierra.com/blogs/outboard-101/outboard-spark-plug-replacement-the-right-plugs-and-gaps