NGK BPR7HS-10 Spark Plug Tohatsu M4C M5B M6B M8B M9.8B 2-Stroke

NGK BPR7HS-10 Spark Plug for Tohatsu 2-Stroke Outboards

NGK projected-tip resistor spark plug for selected carburetted Tohatsu 2-stroke outboards. Designed with heat range 7 and a 1.0 mm electrode gap for the verified engine families below.

Verified Tohatsu Applications

• M4C: 4 HP 2-stroke — from 1997
• M5B: 5 HP 2-stroke — 1997–2007; M5BS from 2007
• M6B: 6 HP 2-stroke — from 1997
• M8B: 8 HP 2-stroke — 1997–2007
• M9.8B: 9.8 HP 2-stroke — 2000–2007
• M15D: 15 HP 2-stroke — 1997–2001
• M18E: 18 HP 2-stroke — 2000–2001
• M25C2: 25 HP 2-stroke — selected production variants

Important: confirm the complete model code and production year on the engine ID plate. Later models, TLDI engines and 4-stroke MFS engines may require a different plug.

Technical Specifications

Check Before Ordering

1. Read the complete model code and year from the outboard identification plate.
2. Confirm BPR7HS-10 in the engine manual or on the plug being replaced.
3. Check how many cylinders the engine has; this listing contains one plug.
4. Install to the Tohatsu tightening procedure and torque specification.

Do not use horsepower alone: two Tohatsu engines with the same power rating can use different spark plugs when the model family or ignition system differs.

Frequently Asked Questions

Is this plug suitable for Tohatsu 4-stroke engines?
No. This application list is for selected carburetted 2-stroke models; MFS 4-stroke engines use a different specification.

What do “P”, “R” and “-10” mean?
They identify a projected insulator, resistor construction and a nominal 1.0 mm electrode gap.

How many plugs are included?
One plug is supplied. Single-cylinder engines normally use one, while multi-cylinder models require a plug for each cylinder.

Will it fit every Tohatsu from 4 to 25 HP?
No. It fits only the listed model families and production ranges. Always check the full engine model before purchase.