NGK 5422 BR8ES Standard Spark Plug, Copper Core, Nickel Electrode, 14mm Thread
NGK 5422 BR8ES Standard Spark Plug, Copper Core, Nickel Electrode, 14mm Thread
The NGK 5422 (BR8ES) is a Standard series spark plug built around a solid copper core for strong heat dissipation and conductivity across a broad heat range. NGK's Standard line is engineered as an OE cornerstone, delivering the same construction and reliability that has backed original-equipment ignition systems for decades. The plug uses a standard ground electrode configuration with a nickel ground electrode, a copper core center electrode with a nickel tip, and a ceramic insulator over a 14 millimeter thread. A 5000 ohm resistor is built in to suppress ignition interference, and the shell and threads carry a corrosion-resistant plating that keeps installation and removal easy even after extended service.
The NGK BR8ES is application-specific, so confirm your engine's plug requirement in its owner's or maintenance manual before ordering, and only install the plug type recommended by the original equipment manufacturer. Using an incorrect plug can reduce performance, hurt fuel economy, or damage the engine.
Specifications
- Brand: NGK
- Manufacturer Part Number: 5422
- NGK Part Number: BR8ES
- Resistance: 5000 ohm
- Ground Configuration: Standard
- Ground Electrode Core Material: Nickel
- Center Electrode Core Material: Copper
- Center Electrode Tip Material: Nickel
- Insulator Material: Ceramic
- Thread Size: 14 millimeters
- UPC: 087295154229
- Weight: 0.15 pounds
Fitment
- Porsche 911, model years 1971-70, 1968
- Renault Fuego, model years 1984-82
- Renault R17, model years 1974-73
- Motorcycle - Aprilia, model years 2006-96
- Motorcycle - Gas Gas, model years 2005-97
- Motorcycle - Honda, model year 1990
- Motorcycle - Kawasaki, model years 2005-83
- Motorcycle - KTM, model year 2006
- Motorcycle - Moto Guzzi, model years 2006-04
- Motorcycle - Yamaha, model years 1985-83
- Snowmobile - Arctic Cat, model years 1990-74
- Snowmobile - Moto-Ski, model years 1979-73
- Snowmobile - Ski-Doo, model years 1978-73
Replaces (OEM)
No OEM cross-reference numbers are listed for the NGK BR8ES (5422).
Frequently Asked Questions
What is the NGK 5422 spark plug? The NGK 5422 is the stock number for NGK's BR8ES Standard spark plug, built with a solid copper core, a nickel-tipped center electrode, and a standard ground electrode configuration.
Is the NGK BR8ES the same as NGK stock number 5422? Yes, NGK 5422 and NGK BR8ES refer to the same Standard spark plug; 5422 is the stock number and BR8ES is the plug's part number.
What thread size does the NGK BR8ES use? The NGK BR8ES has a 14 millimeter thread.
What materials are used in the NGK BR8ES spark plug? The NGK BR8ES uses a copper core center electrode with a nickel tip, a nickel ground electrode, and a ceramic insulator, with corrosion-resistant plating on the shell and threads.
What is the electrical resistance of the NGK BR8ES? The NGK BR8ES has a built-in resistor rated at 5000 ohm, which helps suppress ignition interference.
What vehicles and engines does the NGK BR8ES fit? The NGK BR8ES fits applications including Porsche 911, Renault Fuego and R17, motorcycles from Aprilia, Gas Gas, Honda, Kawasaki, KTM, Moto Guzzi, and Yamaha, and snowmobiles from Arctic Cat, Moto-Ski, and Ski-Doo, in the model years listed in the fitment specifications.
Are there OEM cross-reference numbers for the NGK BR8ES? No OEM cross-reference or replacement numbers are listed for the NGK BR8ES (stock number 5422).
How do I know if the NGK BR8ES is the correct plug for my engine? Check your engine's owner or maintenance manual for the specific spark plug it calls for, and only install the NGK BR8ES if it matches the manufacturer's recommendation.
What happens if I install the wrong spark plug instead of the NGK BR8ES? Installing an incorrect plug in place of the NGK BR8ES can reduce engine performance, lower fuel economy, or cause engine damage.
Is the NGK BR8ES a genuine NGK part? Yes, the BR8ES is part of NGK's Standard spark plug line, manufactured by NGK with OE-cornerstone construction.
How much does the NGK BR8ES spark plug weigh? The NGK BR8ES (NGK 5422) weighs 0.15 pounds.
What ground electrode configuration does the NGK BR8ES use? The NGK BR8ES uses a standard ground electrode configuration.