









⚡ Ignite your watercraft’s potential with NGK V-Power precision!
The NGK Spark Plug LFR6A 6668 (Pack of 8) is engineered for watercraft models FX, FZR, FZS, VX, VXR, and VXS, featuring a 26.5mm reach and 16mm hex size. Its unique V-cut center electrode accelerates spark ignition, while the 5K Ohm resistor reduces electrical noise, ensuring reliable, high-performance starts and smooth engine operation. With a durable copper core and nickel top, this genuine NGK pack delivers consistent power and longevity for professional-grade marine ignition.
| Brand | NGK |
| Core Material | Copper |
| Thread Size | 14 millimeters |
| Top Material Type | Nickel |
| Vehicle Service Type | Car, Truck |
| Automotive Fit Type | Vehicle Specific Fit |
| UPC | 087295195758 |
| Manufacturer | NGK |
| Model | 8 pack NGK V-Power 6668 Spark Plug |
| Item Weight | 15.4 ounces |
| Product Dimensions | 3.7 x 0.94 x 6.64 inches |
| Item model number | 6668 |
| Manufacturer Part Number | 6668 |
| Position | Front, Rear |
D**I
NGK Spark Plugs
They are genuine NGK spark plugs.
B**E
Boat runs like new!
2017 Yamaha 212x was beginning to have some stumbling problems after owning it for a couple of years, and one of the engines conked out a couple of times before leaving the dock. I had no maintenance history on the board but it's likely that the plugs were original.Replaced them (30-minute job to take care of both 1.8L engine) and it's running like new again. You're supposed to replace the plugs every couple of seasons, and will be doing it with the recommended NGK plugs here going forward.
I**R
Good deal - got them quick. All good!
Good Deal - quick shipping. No issues!
J**Y
Perfect fit for 2015 Yamaha 212SS.
Got these for service on my 2015 Yamaha 212SS. Works Perfect.
S**T
Perfect for Yamaha 1.8
OEM replacement for Yamaha jet boat
Y**Y
NGK
Perfect for my 2013 Yamaha AR240.
G**S
Can't go wrong!
Never a problem with the NGK brand
A**.
Received What was ordered
Received what was ordered a day earlier than estimated.
Trustpilot
2 months ago
3 days ago