Genuine NGK 6431 Surface Gap Spark Plugs BU8H - 2 Pack

The NGK 6431 Spark Plug (BU8H) is specifically designed for marine and small engine applications, delivering reliable ignition and long-lasting performance in demanding environments. Built with a solid copper core and a short-thread design, it offers excellent heat dissipation, corrosion resistance, and consistent starts for outboard motors and watercraft.

Features & Benefits:

🔧 Copper core ensures strong spark and efficient thermal transfer
🔧 Corrosion-resistant materials ideal for marine use
🔧 Short-thread design fits compact engine configurations
🔧 Pre-gapped for fast, accurate installation

Specifications:

Brand & Part Number: NGK 6431 (BU8H)
Material: Nickel with Copper Core
Thread Size: 14mm
Reach: 9.5mm (3/8 in)
Hex Size: 13/16 in (20.8mm)
Heat Range: 8
Seat Type: Gasket
Resistor: No
Gap: 0.7mm (0.028 in)

Choose NGK BU8H for reliable marine engine performance, corrosion resistance, and dependable ignition—order now!