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  2. Auto Parts
  3. Ignition
  4. Secondary Ignition
  5. Spark Plug
  6. NGK 6668

NGK 6668 Spark Plug

NGK 6668 Spark Plug Image 1
NGK 6668 Spark Plug Image 2
NGK 6668 Spark Plug Image 3
NGK 6668 Spark Plug Image 4
NGK 6668 Spark Plug

NGK
Brand:NGK
Part Number: 6668
UPC: 00087295166680
Weight: 0.05 lbs
Condition:New



On Sale:

$6.58

Availability:
37 in Stock
Warehouse: US-4
Quantity:

Product Information

Description:

LFR6A

NGK V-Power spark plugs offer reliable performance and improved ignitability over standard nickel plugs. Engineered specifically for OE applications, the special V-cut nickel alloy center electrode and concave ground electrode of NGK's V-Power spark plug increases ignitability providing quicker starts and smoother idle. NGK's legendary high grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance. Trivalent metal plating ensures superior anti-corrosion and anti-seizing properties.

Features and Benefits:

  • ACTUAL OE or EQUIVALENT DESIGN: OEM quality construction nickel alloy center electrode with V-groove provides consistent performance
  • COLD-ROLLED THREADS: Prevents cross-threading and damage to cylinder heads
  • NGK's OE CERAMIC TECHNOLOGY: High grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance
  • RECOMMENDED USAGE: Best for vehicles with OE nickel alloy plugs, not recommended on vehicles with factory precious metal plugs
  • SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
  • TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal

Specifications:

Center Electrode Core Material:
Copper
Center Electrode Tip Material:
Nickel
Electrical Terminal Type:
Non-Removable Nut
Ground Configuration:
Standard
Ground Electrode Core Material:
Nickel
Ground Electrode Quantity:
1
Ground Electrode Tip Design:
Standard
Hex Size:
5/8 in.
Insulator Height:
50.50 mm
Manufacturer Heat Range:
6
Part Number:
LFR6A
Pre-Gap Size:
.036 in.
Reach:
26.5 mm
Resistance:
5000.0 Ohm
Seat Type:
Flat
Stock Number:
6668
Thread Diameter:
14.00 mm
NGK #:
6668
Nissan #:
22401-AR716
Yamaha #:
94702-00427
Yamaha #:
94709-00427
Country of Origin:
TH

Manufacturer Warranty:

2 Months

Select a vehicle to narrow NGK 6668 Spark Plug fitment info!

Last Updated: 09/02/2024

Years Vehicle Per Vehicle Fit NotesFitment Notes

2015

 

2014

 

2013

 

2015

 

2014

 

2013

 
Yamaha FA1800 WaveRunner FX SHO

-L U/K
4
 
V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer
 

Yamaha FA1800 WaveRunner FX SHO



-L U/K V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer

4 Per Vehicle

2016

 

2015

 

2014

 

2013

 

2016

 

2015

 

2014

 

2013

 
Yamaha FA1800A WaveRunner FX Cruiser SHO

-L U/K
4
 
V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer
 

Yamaha FA1800A WaveRunner FX Cruiser SHO



-L U/K V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer

4 Per Vehicle

2019

 

2018

 

2017

 

2019

 

2018

 

2017

 
Yamaha FB1800 WaveRunner FX HO

-L U/K
4
 
V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer
 

Yamaha FB1800 WaveRunner FX HO



-L U/K V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer

4 Per Vehicle

2015

 

2014

 

2013

 

2012

 

2015

 

2014

 

2013

 

2012

 
Yamaha FB1800 WaveRunner FX HO

-L U/K
4
 
V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer
 

Yamaha FB1800 WaveRunner FX HO



-L U/K V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer

4 Per Vehicle

2019

 

2018

 

2017

 

2016

 

2015

 

2014

 

2013

 

2012

 

2019

 

2018

 

2017

 

2016

 

2015

 

2014

 

2013

 

2012

 
Yamaha FB1800A WaveRunner FX Cruiser HO

-L U/K
4
 
V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer
 

Yamaha FB1800A WaveRunner FX Cruiser HO



-L U/K V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer

4 Per Vehicle

2012

 

2011

 

2010

 

2009

 

2008

 

2012

 

2011

 

2010

 

2009

 

2008

 
Yamaha FX1800 WaveRunner FX Cruiser SHO

-L U/K
4
 
V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer
 

Yamaha FX1800 WaveRunner FX Cruiser SHO



-L U/K V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer

4 Per Vehicle

2012

 

2011

 

2010

 

2009

 

2008

 

2012

 

2011

 

2010

 

2009

 

2008

 
Yamaha FX1800 WaveRunner FX SHO

-L U/K
4
 
V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer
 

Yamaha FX1800 WaveRunner FX SHO



-L U/K V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer

4 Per Vehicle

2011

 

2010

 

2009

 

2011

 

2010

 

2009

 
Yamaha FY1800 WaveRunner FX HO

-L U/K
4
 
V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer
 

Yamaha FY1800 WaveRunner FX HO



-L U/K V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer

4 Per Vehicle

2011

 

2010

 

2009

 

2011

 

2010

 

2009

 
Yamaha FY1800A WaveRunner FX Cruiser HO

-L U/K
4
 
V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer
 

Yamaha FY1800A WaveRunner FX Cruiser HO



-L U/K V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer

4 Per Vehicle

2013

 

2012

 

2011

 

2010

 

2009

 

2013

 

2012

 

2011

 

2010

 

2009

 
Yamaha GX1800 WaveRunner FZR

-L U/K
4
 
V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer
 

Yamaha GX1800 WaveRunner FZR



-L U/K V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer

4 Per Vehicle

2013

 

2012

 

2011

 

2010

 

2009

 

2013

 

2012

 

2011

 

2010

 

2009

 
Yamaha GX1800A WaveRunner FZS

-L U/K
4
 
V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer
 

Yamaha GX1800A WaveRunner FZS



-L U/K V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer

4 Per Vehicle

2016

 

2015

 

2014

 

2013

 

2016

 

2015

 

2014

 

2013

 
Yamaha RM1800 AR192

-L U/K
4
 
V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer
 

Yamaha RM1800 AR192



-L U/K V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer

4 Per Vehicle

2016

 

2015

 

2014

 

2013

 

2016

 

2015

 

2014

 

2013

 
Yamaha RM1800 SX192

-L U/K
4
 
V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer
 

Yamaha RM1800 SX192



-L U/K V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer

4 Per Vehicle

2018

 

2017

 

2016

 

2015

 

2014

 

2013

 

2012

 

2018

 

2017

 

2016

 

2015

 

2014

 

2013

 

2012

 
Yamaha RX1800 AR190

-L U/K
4
 
V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer
 

Yamaha RX1800 AR190



-L U/K V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer

4 Per Vehicle

2018

 

2017

 

2016

 

2015

 

2014

 

2013

 

2012

 

2018

 

2017

 

2016

 

2015

 

2014

 

2013

 

2012

 
Yamaha RX1800 SX190

-L U/K
4
 
V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer
 

Yamaha RX1800 SX190



-L U/K V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer

4 Per Vehicle

2016

 

2015

 

2016

 

2015

 
Yamaha SAT1800 242 Limited

-L U/K
8
 
V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer
 

Yamaha SAT1800 242 Limited



-L U/K V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer

8 Per Vehicle

2017

 

2016

 

2017

 

2016

 
Yamaha SAT1800 242 Limited E Series

-L U/K
8
 
V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer
 

Yamaha SAT1800 242 Limited E Series



-L U/K V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer

8 Per Vehicle

2019

 

2018

 

2017

 

2016

 

2015

 

2019

 

2018

 

2017

 

2016

 

2015

 
Yamaha SAT1800 242 Limited S

-L U/K
8
 
V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer
 

Yamaha SAT1800 242 Limited S



-L U/K V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer

8 Per Vehicle

2019

 

2018

 

2017

 

2016

 

2019

 

2018

 

2017

 

2016

 
Yamaha SAT1800 242 Limited S E Series

-L U/K
8
 
V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer
 

Yamaha SAT1800 242 Limited S E Series



-L U/K V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer

8 Per Vehicle

2020

 

2020

 
Yamaha SAT1800 242S

-L U/K
8
 
V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer
 

Yamaha SAT1800 242S



-L U/K V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer

8 Per Vehicle

2020

 

2020

 
Yamaha SAT1800 242SE

-L U/K
8
 
V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer
 

Yamaha SAT1800 242SE



-L U/K V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer

8 Per Vehicle

2019

 

2018

 

2017

 

2016

 

2019

 

2018

 

2017

 

2016

 
Yamaha SAT1800 242X E Series

-L U/K
8
 
V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer
 

Yamaha SAT1800 242X E Series



-L U/K V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer

8 Per Vehicle

2019

 

2018

 

2017

 

2016

 

2015

 

2019

 

2018

 

2017

 

2016

 

2015

 
Yamaha SAT1800 AR240 HO

-L U/K
8
 
V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer
 

Yamaha SAT1800 AR240 HO



-L U/K V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer

8 Per Vehicle

2019

 

2018

 

2017

 

2016

 

2015

 

2019

 

2018

 

2017

 

2016

 

2015

 
Yamaha SAT1800 SX240 HO

-L U/K
8
 
V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer
 

Yamaha SAT1800 SX240 HO



-L U/K V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer

8 Per Vehicle

2018

 

2017

 

2016

 

2018

 

2017

 

2016

 
Yamaha SH1800 190 FSH

-L U/K
4
 
V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer
 

Yamaha SH1800 190 FSH



-L U/K V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer

4 Per Vehicle

2018

 

2017

 

2016

 

2018

 

2017

 

2016

 
Yamaha SH1800 190 FSH Deluxe

-L U/K
4
 
V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer
 

Yamaha SH1800 190 FSH Deluxe



-L U/K V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer

4 Per Vehicle

2018

 

2017

 

2016

 

2018

 

2017

 

2016

 
Yamaha SH1800 190 FSH Sport

-L U/K
4
 
V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer
 

Yamaha SH1800 190 FSH Sport



-L U/K V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer

4 Per Vehicle

2014

 

2013

 

2012

 

2011

 

2010

 

2014

 

2013

 

2012

 

2011

 

2010

 
Yamaha SXT1800 242 Limited

-L U/K
8
 
V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer
 

Yamaha SXT1800 242 Limited



-L U/K V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer

8 Per Vehicle

2014

 

2013

 

2012

 

2011

 

2010

 

2014

 

2013

 

2012

 

2011

 

2010

 
Yamaha SXT1800 242 Limited S

-L U/K
8
 
V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer
 

Yamaha SXT1800 242 Limited S



-L U/K V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer

8 Per Vehicle

2014

 

2013

 

2012

 

2011

 

2010

 

2014

 

2013

 

2012

 

2011

 

2010

 
Yamaha SXT1800 AR240 HO

-L U/K
8
 
V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer
 

Yamaha SXT1800 AR240 HO



-L U/K V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer

8 Per Vehicle

2014

 

2013

 

2012

 

2011

 

2010

 

2014

 

2013

 

2012

 

2011

 

2010

 
Yamaha SXT1800 SX240 HO

-L U/K
8
 
V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer
 

Yamaha SXT1800 SX240 HO



-L U/K V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer

8 Per Vehicle

2020

 

2019

 

2020

 

2019

 
Yamaha TX1800 AR190

-L U/K
4
 
V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer
 

Yamaha TX1800 AR190



-L U/K V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer

4 Per Vehicle

2020

 

2019

 

2020

 

2019

 
Yamaha TX1800 SX190

-L U/K
4
 
V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer
 

Yamaha TX1800 SX190



-L U/K V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer

4 Per Vehicle

2019

 

2019

 
Yamaha UX1800 190FSH

-L U/K
4
 
V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer
 

Yamaha UX1800 190FSH



-L U/K V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer

4 Per Vehicle

2020

 

2019

 

2020

 

2019

 
Yamaha UX1800 190FSH Deluxe

-L U/K
4
 
V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer
 

Yamaha UX1800 190FSH Deluxe



-L U/K V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer

4 Per Vehicle

2020

 

2019

 

2020

 

2019

 
Yamaha UX1800 190FSH Sport

-L U/K
4
 
V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer
 

Yamaha UX1800 190FSH Sport



-L U/K V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer

4 Per Vehicle

2019

 

2018

 

2017

 

2016

 

2019

 

2018

 

2017

 

2016

 
Yamaha VX1800 WaveRunner VX Cruiser HO

-L U/K
4
 
V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer
 

Yamaha VX1800 WaveRunner VX Cruiser HO



-L U/K V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer

4 Per Vehicle

2019

 

2018

 

2017

 

2016

 

2015

 

2014

 

2013

 

2012

 

2011

 

2019

 

2018

 

2017

 

2016

 

2015

 

2014

 

2013

 

2012

 

2011

 
Yamaha VX1800AK WaveRunner VXR

-L U/K
4
 
V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer
 

Yamaha VX1800AK WaveRunner VXR



-L U/K V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer

4 Per Vehicle

2016

 

2015

 

2014

 

2013

 

2012

 

2011

 

2016

 

2015

 

2014

 

2013

 

2012

 

2011

 
Yamaha VX1800K WaveRunner VXS

-L U/K
4
 
V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer
 

Yamaha VX1800K WaveRunner VXS



-L U/K V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer

4 Per Vehicle

2016

 

2015

 

2014

 

2013

 

2012

 

2016

 

2015

 

2014

 

2013

 

2012

 
Yamaha XAT1800 212SS

-L U/K
8
 
V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer
 

Yamaha XAT1800 212SS



-L U/K V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer

8 Per Vehicle

2016

 

2015

 

2014

 

2013

 

2012

 

2016

 

2015

 

2014

 

2013

 

2012

 
Yamaha XAT1800 212X

-L U/K
8
 
V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer
 

Yamaha XAT1800 212X



-L U/K V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer

8 Per Vehicle

2018

 

2017

 

2018

 

2017

 
Yamaha XBT1800 212 Limited

-L U/K
8
 
V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer
 

Yamaha XBT1800 212 Limited



-L U/K V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer

8 Per Vehicle

2018

 

2017

 

2018

 

2017

 
Yamaha XBT1800 212 Limited S

-L U/K
8
 
V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer
 

Yamaha XBT1800 212 Limited S



-L U/K V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer

8 Per Vehicle

2018

 

2017

 

2018

 

2017

 
Yamaha XBT1800 212X

-L U/K
8
 
V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer
 

Yamaha XBT1800 212X



-L U/K V-Power Spark Plug
Gap 0.036
Actual OE Manufacturer

8 Per Vehicle