Genuine Tohatsu B7HS-10 Spark Plug 9.9-50HP 2-Stroke P-B7HS-10
P-B7HS-10
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Genuine Tohatsu-supplied B7HS-10 spark plug for selected 9.9 to 50HP two-stroke outboard engines. Designed for routine ignition maintenance, this is a direct plug-code replacement where B7HS-10 is specified. Always verify the exact plug code for the engine model and year before ordering.
Key Features
- Genuine Tohatsu service item
- NGK B7HS-10 plug specification
- Non-resistor spark plug for selected two-stroke outboards
- Suitable for routine servicing or replacement
- Supplied as one spark plug
Technical Specs
| Product type | Marine spark plug |
|---|---|
| Plug code | B7HS-10 |
| Thread diameter | 14 mm |
| Thread reach | 12.7 mm |
| Hex size | 20.8 mm |
| Specified gap | 1.0 mm |
| Engine type | Two-stroke outboard |
| Quantity | 1 |
Compatibility / Fitment Guide
Catalogued for selected Tohatsu 9.9 to 50HP two-stroke outboards. Known applications include model families such as M9.9B2, M15B2, M18, M25, M30 and selected 40/50HP engines. Fitment varies by model suffix and production year; confirm B7HS-10 in the owner’s manual or on the removed plug.
Part Number Cross Reference
- Tohatsu catalogue / supplier reference: P-B7HS-10
- Spark plug type: NGK B7HS-10
- NGK stock number: 2129
Frequently Asked Questions
Is this supplied individually?
Yes. The listing is for one spark plug.
Does it fit all 9.9 to 50HP Tohatsu engines?
No. It is for selected two-stroke applications. Four-stroke models and some model years require a different plug.
Can I replace B7HS-10 with BR7HS-10?
BR7HS-10 is the resistor version. Use only the plug type specified by Tohatsu for your exact engine.
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