The NGK 5422 Spark Plug (BR8ES) is a marine-grade copper-core plug trusted in Sea-Doo watercraft models including 580, 587, 650, 657, 717, 720, 787, 800, 947, and 951 XP, GTX, and SP for reliable ignition and performance on the water.
Features & Benefits:
🔧 Copper core improves thermal conductivity and spark strength
🔧 Resists fouling under high-RPM marine operation
🔧 Trivalent plating protects against moisture and corrosion
🔧 Designed for reliable ignition in 2-stroke PWC engines
Specifications:
Brand & Part Number: NGK 5422 BR8ES
Material: Copper
Thread Size: 14mm
Reach: 19mm (0.75 in.)
Hex Size: 13/16 in. (20.6mm)
Seat Type: Gasket
Resistor: No
Gap: 0.028 in. (0.7mm)
Use NGK BR8ES to keep your Sea-Doo jet ski running strong with easy starts and reliable power—order now!