NGK 3830 Spark Plug

Brand NGK 3830
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 10
Seat Type Flat
Reach .75
Thread Diameter 14.00
Part Number Br10eg
Stock Number 3830
Fits —

Racing spark plug. Built for high-performance ignition demands.

Copper core. Promotes efficient heat transfer for stable operation.

Nickel electrodes. Standard tip design for reliable spark delivery.

Cross-references CSF 3830, OSC 4059 and 90793-20136 for the same application. See all 11.

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NGK BR10EG Racing Spark Plug

The NGK BR10EG racing spark plug is built for performance-focused ignition systems that need a copper core, nickel tip, and a colder heat range. With a 0.024 pre-gap, 5k ohm resistance, and flat seat design, this plug supports consistent spark delivery in demanding applications.

For riders and builders searching for an NGK BR10EG spark plug for Honda, Yamaha, or Kawasaki applications, this part number 3830 is a direct replacement option where the specified plug dimensions match the engine requirements.

Key Features

  • NGK Racing Spark Plug line for performance and motorsport use
  • Part number 3830 / BR10EG
  • 5000 ohm resistance for ignition circuit compatibility
  • Copper center electrode core with nickel center electrode tip
  • Nickel ground electrode core with standard ground configuration
  • 0.024 pre-gap size for specified applications
  • 14.00 mm thread diameter, 0.75 reach, and flat seat type
  • 13/16 hex size with removable nut terminal
  • Manufacturer heat range 10

Product Details

The NGK Racing Spark Plug product line is aimed at engines that require a precise spark plug specification rather than a generic replacement. The BR10EG uses a copper core for efficient heat transfer, a nickel tip design, and a standard single-ground-electrode layout. Those details matter when matching ignition performance, plug reach, thread size, and heat range to the engine’s original requirements. This NGK BR10EG spark plug is commonly searched as part number 3830 for Honda, Yamaha, and Kawasaki motorcycle applications where the listed dimensions and heat range are correct.

This part cross-references CSF 3830 and OSC 4059 for the same application.

What It Helps Address

  • Misfires caused by worn or incorrect spark plug specifications
  • Hard starting from degraded ignition performance
  • Inconsistent throttle response under load
  • Fouling issues when the heat range does not match the engine
  • Spark loss related to excessive plug resistance or electrode wear

Installation Notes and Tips

Verify thread diameter, reach, seat type, and heat range against the engine service specification before installation. Set the plug gap to the required value if the application calls for a different setting than the 0.024 pre-gap listed here. Use the removable nut terminal only when it matches the ignition lead or cap design, and torque the plug to the manufacturer’s specification for the engine.

Quality Assurance

NGK is a recognized ignition component manufacturer, and the BR10EG is built to the published dimensions and electrical specifications shown above. Confirm fitment by engine code or service manual when selecting this spark plug for Honda, Yamaha, or Kawasaki models.

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.
CSF — 3830OSC — 405990793-2013692070-113394702-0036898079-60679297830029783054331093210AP0297830W29ESR-V