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NGK 14

14 NGK – Properties, Compatibility and Alternatives

The NGK 14 represents a fundamental component in automotive ignition systems, designed to deliver reliable spark generation for optimal engine performance. This Spark plug NGK 14 serves as a critical element in the combustion process, ensuring proper fuel ignition timing and efficient power delivery across various vehicle applications.

Advantages of the 14 NGK

  • Superior heat dissipation properties ensure consistent performance under varying operating conditions
  • Durable electrode construction provides extended service life and reliable Spark plug 14 NGK operation
  • Precise gap specifications maintain optimal combustion efficiency throughout the service interval
  • Corrosion-resistant materials protect against harsh engine environment conditions
  • Enhanced NGK 14 spark plug characteristics reduce misfiring incidents and improve fuel economy
  • Compatible design ensures proper fitment across multiple vehicle platforms

Technical Data

Feature Value
Manufacturer NGK
Model NGK 14
Type Standard copper core
Thread size 14mm
Thread length 19mm
Wrench size 20.8mm
Heat range 5
Electrode gap 0.6-0.7mm
Resistance 5kΩ
Application Small engines, motorcycles, marine applications

Compatibility and Areas of Application

The NGK 14 demonstrates excellent compatibility with small displacement engines and specialized applications where compact design and reliable ignition are essential. This 14 NGK spark plug finds primary use in motorcycle engines, marine outboard motors, and various small engine applications including generators and lawn equipment.

  • Motorcycle engines ranging from 50cc to 250cc displacement
  • Marine outboard motors in recreational and commercial applications
  • Small engine equipment including generators and portable power units
  • Specialized industrial applications requiring reliable ignition systems

Suitable for the following vehicle models and equivalents

It is important to mention that alternative products can be found on AUTODOC. Currently, there are over 7000 items available in the spark plugs category.

Car maker Car Model
Honda CB125, CG125
Yamaha YBR125, XTZ125
Suzuki GN125, EN125
Kawasaki KLX110, KLX125

Application Notes and Important Questions

  • What is the recommended torque specification for installing 14 NGK components? The standard torque range is 12-15 Nm to ensure proper sealing without thread damage.
  • How frequently should Spark plug NGK 14 replacement occur in typical operating conditions? Service intervals typically range from 10,000 to 15,000 kilometers depending on engine type and operating conditions.
  • Can electrode gap adjustment be performed on this model? Yes, the gap can be carefully adjusted using appropriate feeler gauges and gap adjustment tools.
  • What are the signs indicating replacement necessity? Common indicators include difficult starting, rough idling, reduced fuel efficiency, and visible electrode wear or carbon deposits.

Conclusion

The NGK 14 provides reliable ignition performance for small engine applications with its proven copper core design and precise engineering specifications. This NGK 14 offers excellent value through its durable construction and wide compatibility range across motorcycle and small engine platforms. Proper installation and regular maintenance ensure optimal performance and extended service life in demanding operating environments.

500 items
  • Spark Plug: Nickel Middle Electrode, 2 - Earthed Electrode, Interference Suppression 5 kOhm, with gasket seat, Fixed SAE connector
  • Spanner Size: 14 mm
  • Thread Length [mm]: 26,5
  • Spark Position [mm]: 2,5
  • Thread Size: M10 x 1,0
  • Item number: 93444
  • Manufacturer: NGK
  • EAN number: 0087295934449
  • Condition: New
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  • Spark Plug: Iridium Middle Electrode, 1 - Earthed Electrode, Interference Suppression 5 kOhm, with taper gasket seat, Fixed SAE connector
  • Spanner Size: 14 mm
  • Thread Length [mm]: 24,0
  • Spark Position [mm]: 6,0
  • Thread Size: M12 x 1,25
  • Item number: 97576
  • Manufacturer: NGK
  • EAN number: 0087295975763
  • Condition: New
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-17%
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  • Spark Plug: with gasket seat, Platinum Middle Electrode, 1 - Earthed Electrode, Interference Suppression 5 kOhm, Fixed SAE connector
  • Spanner Size: 14 mm
  • Thread Length [mm]: 26,5
  • Spark Position [mm]: 5,0
  • Thread Size: M12 x 1,25
  • Version: Bi-Hex
  • Item number: 91530
  • Manufacturer: NGK
  • EAN number: 0087295915301
  • Condition: New
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In stock
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  • Spark Plug: Nickel Middle Electrode, 2 - Earthed Electrode, Interference Suppression 5 kOhm, with gasket seat, Fixed SAE connector
  • Spanner Size: 14 mm
  • Thread Length [mm]: 26,5
  • Spark Position [mm]: 2,5
  • Thread Size: M10 x 1,0
  • Item number: 1633
  • Manufacturer: NGK
  • EAN number: 0087295116333
  • Condition: New
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-19%
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  • Spark Plug: Iridium Middle Electrode, 1 - Earthed Electrode, Interference Suppression 5 kOhm, with gasket seat
  • Spanner Size: 14 mm
  • Thread Length [mm]: 26,5
  • Spark Position [mm]: 5,0
  • Thread Size: M12 x 1,25
  • Version: Bi-Hex
  • Item number: 97968
  • Manufacturer: NGK
  • EAN number: 0087295979686
  • Condition: New
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Spark plugs 90391 NGK 14 NGK spark plug - 90391
NGK 90391 Spark plug M12 x 1,25, Spanner Size: 14 mm
Article number: 90391
Reviews - 6
  • Spark Plug: Iridium Middle Electrode, 1 - Earthed Electrode, Interference Suppression, with gasket seat, Fixed SAE connector
  • Electrode Gap [mm]: 0,7
  • Spanner Size: 14 mm
  • Thread Length [mm]: 26,5
  • Spark Position [mm]: 4
  • Thread Size: M12 x 1,25
  • Resistance [Ohm]: 4,7
  • Item number: 90391
  • Manufacturer: NGK
  • EAN number: 0087295903919
  • Condition: New
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  • Spark Plug: Ring type connector (cup-shaped), Iridium Middle Electrode, 1 - Earthed Electrode, Interference Suppression 1 kOhm, with gasket seat
  • Spanner Size: 14 mm
  • Thread Length [mm]: 26,5
  • Spark Position [mm]: 5,0
  • Thread Size: M12 x 1,25
  • Item number: 95875
  • Manufacturer: NGK
  • EAN number: 0087295958759
  • Condition: New
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NGK 92499 Spark plug M10 x 1,0, Spanner Size: 14 mm
Article number: 92499
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  • Spark Plug: Iridium Middle Electrode, 1 - Earthed Electrode, Interference Suppression 5 kOhm, with gasket seat, Fixed SAE connector
  • Spanner Size: 14 mm
  • Thread Length [mm]: 26,5
  • Spark Position [mm]: 3,0
  • Thread Size: M10 x 1,0
  • Item number: 92499
  • Manufacturer: NGK
  • EAN number: 0087295924990
  • Condition: New
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  • Spark Plug: Connector Type M4, Nickel Middle Electrode, 1 - Earthed Electrode, Interference Suppression 5 kOhm, with gasket seat
  • Spanner Size: 14 mm
  • Thread Length [mm]: 26,5
  • Spark Position [mm]: 3,0
  • Thread Size: M10 x 1,0
  • Item number: 4313
  • Manufacturer: NGK
  • EAN number: 0087295143131
  • Condition: New
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  • Spark Plug: Iridium Middle Electrode, 1 - Earthed Electrode, Interference Suppression 5 kOhm, with gasket seat, Ring type connector (cup-shaped)
  • Spanner Size: 14 mm
  • Thread Length [mm]: 26,5
  • Spark Position [mm]: 3,5
  • Thread Size: M12 x 1,25
  • Item number: 90418
  • Manufacturer: NGK
  • EAN number: 0087295904183
  • Condition: New
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  • Spark Plug: Connector Type M4, Nickel Middle Electrode, 1 - Earthed Electrode, Interference Suppression 5 kOhm, with gasket seat
  • Spanner Size: 14 mm
  • Thread Length [mm]: 26,5
  • Spark Position [mm]: 3,0
  • Thread Size: M10 x 1,0
  • Item number: 5946
  • Manufacturer: NGK
  • EAN number: 0087295159460
  • Condition: New
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-17%
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  • Spark Plug: with gasket seat, Platinum Middle Electrode, 1 - Earthed Electrode, Interference Suppression 5 kOhm, Fixed SAE connector
  • Spanner Size: 14 mm
  • Thread Length [mm]: 26,5
  • Spark Position [mm]: 5,0
  • Thread Size: M12 x 1,25
  • Version: Bi-Hex
  • Item number: 92706
  • Manufacturer: NGK
  • EAN number: 0087295827062
  • Condition: New
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  • Spark Plug: Iridium Middle Electrode, 1 - Earthed Electrode, Interference Suppression 1 kOhm, with gasket seat, Fixed SAE connector
  • Spanner Size: 14 mm
  • Thread Length [mm]: 26,5
  • Spark Position [mm]: 5,0
  • Thread Size: M12 x 1,25
  • Item number: 6043
  • Manufacturer: NGK
  • EAN number: 0087295160435
  • Condition: New
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  • Spark Plug: Ring type connector (cup-shaped), Iridium Middle Electrode, 1 - Earthed Electrode, Interference Suppression 1 kOhm, with gasket seat
  • Spanner Size: 14 mm
  • Thread Length [mm]: 26,5
  • Spark Position [mm]: 5
  • Thread Size: M12 x 1,25
  • Item number: 97566
  • Manufacturer: NGK
  • EAN number: 0087295975664
  • Condition: New
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In stock
-11%
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  • Spark Plug: Iridium Middle Electrode, 1 - Earthed Electrode, Interference Suppression 5 kOhm, with gasket seat
  • Spanner Size: 14 mm
  • Thread Length [mm]: 26,5
  • Spark Position [mm]: 4,0
  • Thread Size: M12 x 1,25
  • Item number: 91121
  • Manufacturer: NGK
  • EAN number: 0087295911211
  • Condition: New
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  • Spark Plug: Iridium Middle Electrode, 1 - Earthed Electrode, Interference Suppression 5 kOhm, with gasket seat
  • Spanner Size: 14 mm
  • Thread Length [mm]: 26,5
  • Spark Position [mm]: 4,7
  • Thread Size: M12 x 1,25
  • Version: Bi-Hex
  • Item number: 94201
  • Manufacturer: NGK
  • EAN number: 0087295942017
  • Condition: New
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In stock
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  • Spark Plug: Iridium Middle Electrode, 1 - Earthed Electrode, Interference Suppression 5 kOhm, with gasket seat, Fixed SAE connector
  • Spanner Size: 14 mm
  • Thread Length [mm]: 26,5
  • Spark Position [mm]: 4,0
  • Thread Size: M12 x 1,25
  • Item number: 90061
  • Manufacturer: NGK
  • EAN number: 0087295900611
  • Condition: New
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In stock
-14%
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  • Spark Plug: Iridium Middle Electrode, 1 - Earthed Electrode, Interference Suppression 5 kOhm, with gasket seat, Fixed SAE connector
  • Spanner Size: 14 mm
  • Thread Length [mm]: 26,5
  • Spark Position [mm]: 2,0
  • Thread Size: M10 x 1,0
  • Item number: 92288
  • Manufacturer: NGK
  • EAN number: 0087295922880
  • Condition: New
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In stock
-21%
compared to RRP £17.72

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Engine spark plug 97939 NGK Sample photo only NGK 14 - 97939
NGK 97939 Spark plug M12 x 1,25, Spanner Size: 14 mm
Article number: 97939
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  • Spark Plug: Iridium Middle Electrode, 1 - Earthed Electrode, Interference Suppression 5 kOhm, with gasket seat, Fixed SAE connector
  • Electrode Gap [mm]: 0,8
  • Spanner Size: 14 mm
  • Thread Length [mm]: 26,5
  • Spark Position [mm]: 4
  • Thread Size: M12 x 1,25
  • Item number: 97939
  • Manufacturer: NGK
  • EAN number: 87295979396
  • Condition: New
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  • Spark Plug: Iridium Middle Electrode, 1 - Earthed Electrode, Interference Suppression 5 kOhm, with gasket seat, Ring type connector (cup-shaped)
  • Spanner Size: 14 mm
  • Thread Length [mm]: 28,0
  • Spark Position [mm]: 5,0
  • Thread Size: M12 x 1,25
  • Item number: 97434
  • Manufacturer: NGK
  • EAN number: 87295974346
  • Condition: New
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£14.99
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