Spark Plug CR9EH | 9 | Outboard Marine Ignition | 4Boats
CR9EH-9-NGK
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Regular price£7.99
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NGK nickel spark plug CR9EH-9 features a specially designed v-groove centre electrode to improve ignitability for reliable starts in outboard marine engines.
Factory gap: 0.9 mm (the "-9" designation typically indicates a 0.9 mm gap). For confirmed technical specifications - thread size, reach, hex size, resistor type and exact heat range - consult the NGK datasheet or your engine manual before fitting.
Find related items in our Spark Plugs collection or Ignition & Electrical, or contact us with your engine model for fitment help.
- Model: CR9EH-9
- Nickel construction with v-groove centre electrode for improved ignitability
- Durable nickel plating to resist corrosion in marine environments
- Factory pre-gapped to approximately 0.9 mm - confirm and adjust to the engine manufacturer's specification before installation
- Installation tip: inspect the old plug, clean the seat, and torque to the engine manufacturer's specification
- Fitment guidance: suitable replacement for many petrol/outboard engines; confirm thread size, reach and exact fit by checking the NGK datasheet or contacting 4Boats with your engine make and model
- For OEM cross-references or specific compatibility queries, contact 4Boats with your engine make and model
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