NGK 3230 Spark Plug

Brand NGK 3230
Resistance 5000
Ground Electrode Tip Design Standard
Ground Configuration Standard
Ground Electrode Core Material Nickel
Electrical Terminal Type Removable nut
Center Electrode Core Material Copper
Center Electrode Tip Material Nickel
Pre-Gap Size .024
Ground Electrode Quantity 1
Hex Size 13/16
Insulator Height 55.00
Manufacturer Heat Range 9
Seat Type Flat
Reach .75
Thread Diameter 14.00
Part Number Br9eg
Stock Number 3230
Fits —

Racing spark plug. Built for high-performance ignition with a copper core and nickel tip.

Standard design. Single-ground configuration keeps the spark plug straightforward and reliable.

Removable nut terminal. Offers flexible connection options for easier installation.

Cross-references AMS Automotive 4049, CSF 895 and Gates 3230 for the same application. See all 11.

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NGK BR9EG Racing Spark Plug

The NGK BR9EG racing spark plug is built for ignition systems that need a colder heat range and stable spark delivery under demanding conditions. With a copper core center electrode, nickel tip materials, and a 5,000-ohm resistor, this NGK 3230 spark plug supports consistent combustion control in performance applications.

For riders and builders searching for a racing spark plug for Honda and Yamaha applications, the BR9EG is a direct-fit style plug with a flat seat, 14 mm thread diameter, 0.75-inch reach, and 13/16-inch hex. The pre-gap is set at .024, and the removable nut terminal provides flexible connection options.

Key Features

  • NGK Racing Spark Plug line for performance ignition use
  • Part number BR9EG / stock number 3230
  • Manufacturer heat range 9 for colder operating conditions
  • Copper center electrode core with nickel center tip
  • Nickel ground electrode with standard ground configuration
  • 5,000-ohm resistor for ignition noise suppression
  • Flat seat, 14 mm thread diameter, .75-inch reach
  • Pre-gapped to .024 for installation reference
  • Removable nut electrical terminal

Product Details

The NGK Racing Spark Plug product line is aimed at engines that need dependable spark under higher load, higher rpm, or modified tuning conditions. This BR9EG spark plug uses a standard single-ground-electrode layout with a nickel ground tip and copper core center electrode to support stable ignition performance. The colder heat range 9 specification is commonly selected for performance-oriented engine setups where plug temperature control matters. This NGK 3230 spark plug is a practical choice for riders looking for a racing spark plug for Honda CRF, Yamaha YZ, and similar motorcycle applications where the correct heat range and thread dimensions are critical.

This part cross-references Gates 3230 for the same application.

What It Helps Address

  • Misfire caused by worn or heat-stressed spark plugs
  • Hard starting from weak ignition output
  • Inconsistent combustion in high-rpm operation
  • Plug fouling in performance-tuned engines
  • Ignition noise concerns in resistor-equipped systems

Installation Notes and Tips

Verify the engine calls for a 14 mm thread diameter, flat seat, .75-inch reach, and heat range 9 before installation. Check the plug gap against the engine specification, even though the pre-gap is listed at .024. Use the removable nut terminal only if your ignition lead requires that style of connection. For fitment-based searches, this NGK BR9EG is commonly sought for Honda and Yamaha motorcycle applications, including Honda CRF and Yamaha YZ models where the specified plug dimensions match the engine requirements.

Quality Assurance

NGK is a recognized ignition component manufacturer, and the BR9EG is built to the listed electrical and dimensional specifications for secondary ignition service. Confirm part number 3230 against the vehicle service information before installation.

This part fits 0 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
Directly replaces or cross-references 11 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
AMS Automotive — 4049CSF — 895Gates — 323090793-2013592070-106394701-0032494702-0032494709-0032498079-59679QN84W27ESR-V