Mercury OptiMax (all) — service specifications
What is the spark plug for Mercury OptiMax (all) — service specifications?
For Mercury OptiMax (all), spark plug is NGK PZFR5F-11; gap is 0.040" (1.0mm), recorded from its source on 2026-08-05.
OptiMax (all) | NGK PZFR5F-11 | 0.040" (1.0mm)
— seasierra.com, retrieved 2026-08-05
- Brand
- Mercury
- Model / range
- OptiMax (all) verified
- Spark plug
- NGK PZFR5F-11 verified
- Gap
- 0.040" (1.0mm) verified
Source
- seasierra.comhttps://seasierra.com/blogs/outboard-101/outboard-spark-plug-replacement-the-right-plugs-and-gaps