4 NGK Spark Plugs - For Yamaha Waverunner FX Cruiser SHO Watercraft

The NGK 6668 Spark Plug (LFR6A) is a high-performance plug for 4-stroke Yamaha watercraft engines, providing precise ignition, reduced fouling, and extended service life in high-load marine conditions.

Features & Benefits:

🔧 Long-reach plug for modern 4-cycle Yamaha engines
🔧 Trivalent plating resists saltwater corrosion
🔧 Projected tip design improves combustion efficiency
🔧 Copper core for consistent thermal control

Specifications:

Brand & Part Number: NGK 6668 LFR6A
Material: Copper
Thread Size: 14mm
Reach: 26.5mm (1.04 in.)
Hex Size: 5/8 in. (16mm)
Seat Type: Gasket
Resistor: Yes
Gap: 0.039 in. (1.0mm)

Choose NGK LFR6A for long-lasting marine ignition performance in your Yamaha PWC—order now!