NGK Racing Spark Plugs R7438-8, R7438-9, R7438-10
NGK Racing Spark Plugs R7438-8, R7438-9, R7438-10
NGK Racing R7438-series spark plugs, supplied as a set of four for compatible high-performance ignition applications.
Heat-range selection
The R7438 family is available in multiple heat ranges. Select the heat range to suit the engine's cylinder pressure, fuel, boost level, combustion temperature and intended duty rather than choosing a colder plug automatically.
Before ordering
Confirm thread, reach, seat type and required heat range for the cylinder head. Plug gap should be set to the ignition system and engine combination.
Workshop support
Built by Boost & Tune can assist with spark-plug selection, gap setting, ignition-system checks and dyno calibration.
Supplier
NGK
Available Options
Spec
- 8
- 9
- 10
Ordering and Fitment Checks
Confirm the listed application, dimensions, connection type and selected configuration against the vehicle and existing hardware before ordering. Review every product option because the final selection can affect compatibility, installation requirements and price. Contact BBT before purchase if the application has non-standard components or the required configuration is unclear.