NGK BR9HS-10 Spark Plug, Mercury 813418
- Brand:
- NGK
- Part no:
- 813418
Where to buy
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This is the NGK BR9HS-10 spark plug, supplied under Mercury part number 813418. It is a new, genuine Mercury Marine and Quicksilver part. It supersedes the older numbers 8M0114742, 97186B, 97186 and 86864, so a plug marked with any of those maps to this one. The maker backs Mercury and Quicksilver products with a 1 year factory warranty.
Our take
The BR9HS-10 carries a run of superseded numbers: 8M0114742, 97186B, 97186 and 86864. If an old plug in your spares bears one of those, it points to this part, which makes cross-checking a quick job.