Home / 4 NGK Spark Plugs - For Yamaha Waveblaster 800X Watercraft
4 NGK Spark Plugs - For Yamaha Waveblaster 800X Watercraft
$53.77
Free shipping on all orders.
Qty In Stock: 20
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!
Shipping Info
Free shipping on every US order. In-stock parts typically ship within 1 business day from Texas.
Returns
30-day returns on unused parts in original packaging. Wrong or defective items are replaced or refunded. See the return policy.
How do I confirm this part fits?
Match the brand and part number to your vehicle, or use the Parts Finder on the homepage. Contact us before ordering if you are unsure.
Are these parts new?
Yes. TXN Supply Co sells new parts from trusted OEM-quality brands — not remanufactured cores.
How fast will my order ship?
In-stock orders ship within 1 business day. Delivery time depends on your ZIP; most US addresses arrive in 2–5 business days.
What is your return policy?
Unused items can be returned within 30 days in original packaging. Customer-initiated returns may include a restocking fee and return shipping.
