Spark Plug BP4 - Marine Nickel Ignition | 4Boats
BP4-NGK
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Regular price£4.20
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NGK BP4 nickel spark plug featuring a V-groove centre electrode for reliable ignition in marine outboard and inboard petrol engines. Factory gap with a corrosion‑resistant finish suited to marine use. Sold individually; verify fitment before installation.
- Model: BP4
- Construction: nickel electrodes with V‑groove centre for improved ignitability
- Gap: factory-set; confirm and adjust to OEM specification
- Thread, reach & seat: check thread diameter, pitch, reach and seat type against your engine manual
- Hex & terminal: verify hex size for socket fitment and terminal type for your cap
- Resistor: non-resistor; choose BPR4 for resistor requirement
- Application: marine outboard and inboard petrol engines; suitable as a replacement spark plug
- Compatibility: confirm fit and cross-reference to BP4 equivalents where applicable
- Installation: follow OEM torque specification; typical range ~18-25 N·m-refer to engine documentation
- Pack: sold individually unless otherwise stated
- Maintenance: replace per manufacturer service intervals and inspect for corrosion in marine environments
- Marine Ignition Parts and related items available in our store
For the products under £150 the shipping is £6.99.
Free delivery for the most items over £150.
