Item #876449

NGK BP7HS-10/Tohatsu Spark Plug - 970101005M

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NGK BP7HS-10/Tohatsu Spark Plug - 970101005M

Item # 876449



  • The NGK Spark Plug is the workhorse, at the heart of smooth-running engines around the world
  • OEM Quality
  • Consistent Performance
  • Plug of Choice in Millions of Marine Engines
  • The spark plug insulators are made of 99 percent pure alumina silicate, allowing for longer insulator noses for reduced fouling
  • Triple-Gasket Sealing Process
  • This spark plug features a triple gasket sealing process that eliminates fuel leakage
  • It also includes a solid copper core that provides superior heat dissipation and conductivity
  • This spark plug has resistor that is produced with a glass and carbon mixture, which is fired to ensure superior performance and durability
  • It has corrugated ribs that prevent flash over and cold rolled threads to inhibit damage to the cylinder head


  • Tohatsu, Nissan 5 HP through 25 HP 2-Stroke Outboards (18C only)
    • Use B7HS-10 for Model 18D Outboards
  • Mercury 4 HP 2-Stroke Single Cylinder Outboards
  • Models 5B, 8B and 9.8B Outboards


  • Thread diameter: 14 mm
  • Thread reach: 12.7 mm
  • Seat type: Flat
  • Hex size: 21 mm (13/16")
  • Tip configuration: Projected
  • Construction: Standard construction
  • Terminal type: Removable

Cross Reference for NGK BP7HS-10:

  • AC Delco R42FS
  • Autolite 4113
  • Autolite 4123
  • Bosch W7BC
  • Bosch Stock 7597
  • Champion L7YC4
  • Champion OE038
  • Champion RL87YC
  • Champion P-L7YC4
  • Champion L82YC
  • Champion Stock 327
  • Denso W22FP-U10
  • Denso 4168
  • Denso W20FP-U10
  • Denso W22FPU10
  • Denso Stock 6037
  • General Motors 5613527
  • Mercruiser 33-97184
  • Motorcraft AE2C
  • Napa X936
  • NGK Stock 7829
  • Yamaha 94701 00264

IMPORTANT: This chart is furnished as a guide only. Certain design differences may exist between this spark plug and another manufacturers and heat ratings can also vary. Always refer to the Manufacturer's application data to select the recommended spark plug for your specific engine

Note: There are more outboard motor applications for this spark plug that are not listed here. See your Owner's Manual to confirm compatibility.

Part Numbers for NGK BP7HS-10/Tohatsu Spark Plug - 970101005M

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