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NGK SILZKFR8D7S

SILZKFR8D7S NGK – Properties, Compatibility and Alternatives

The NGK SILZKFR8D7S represents a premium iridium spark plug engineered for high-performance engines requiring exceptional ignition reliability. This Spark plug NGK SILZKFR8D7S delivers superior combustion efficiency through its advanced electrode design and heat dissipation characteristics. Modern automotive applications demand precise ignition timing and consistent spark delivery, making this component essential for optimal engine performance.

Advantages of the SILZKFR8D7S NGK

  • Extended service life through iridium electrode construction, reducing replacement frequency and maintenance costs
  • Enhanced fuel efficiency achieved by Spark plug SILZKFR8D7S NGK providing complete combustion of the air-fuel mixture
  • Superior cold-start performance ensuring reliable engine ignition in various weather conditions
  • Reduced emissions output as NGK SILZKFR8D7S spark plug promotes cleaner burning and more efficient combustion cycles
  • Improved engine responsiveness and smoother idle operation through consistent spark generation
  • Corrosion resistance properties extending operational lifespan in harsh engine environments

Technical Data

Feature Value
Manufacturer NGK
Model NGK SILZKFR8D7S
Type Iridium IX
Thread size M12 x 1.25
Thread length 19mm
Wrench size 14mm
Heat range 8
Electrode gap 0.7mm
Resistance 5kΩ
Application High-performance gasoline engines

Compatibility and Areas of Application

This spark plug configuration suits high-performance gasoline engines requiring precise ignition control and enhanced thermal management. The SILZKFR8D7S NGK spark plug excels in turbocharged applications where consistent spark delivery under elevated combustion pressures becomes critical. Primary applications include performance-oriented vehicles, modified engines, and racing applications demanding reliable ignition systems.

  • Turbocharged and supercharged engine applications
  • High-compression ratio engines requiring colder heat range plugs
  • Performance modifications and engine tuning applications
  • Racing and motorsport engine configurations

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
Subaru WRX STI, Forester XT
Mitsubishi Lancer Evolution
Mazda MX-5 Miata, RX-8
Honda Civic Type R, S2000

Application Notes and Important Questions

  • What torque specification should be applied during installation? The recommended torque ranges between 15-20 Nm to prevent thread damage while ensuring proper sealing.
  • How does the SILZKFR8D7S NGK perform in modified engines? This component handles increased boost pressures and elevated combustion temperatures effectively.
  • Can this Spark plug NGK SILZKFR8D7S replace OEM specifications? Always verify compatibility with manufacturer recommendations before substituting original equipment specifications.
  • What maintenance intervals apply to iridium plugs? Typical service intervals extend to 60,000-100,000 miles depending on operating conditions and engine modifications.

Conclusion

The NGK SILZKFR8D7S delivers exceptional performance characteristics for demanding automotive applications requiring reliable ignition under extreme operating conditions. This NGK SILZKFR8D7S represents an excellent choice for enthusiasts seeking enhanced engine performance and extended service intervals. Professional installation and proper gap verification ensure optimal results and maximum component longevity.

500 items
NGK 95875 Spark plug M12 x 1,25, Spanner Size: 14 mm
Article number: 95875 Trade numbers: SILZKFR8D7S
Reviews - 22
  • 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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In stock
-27%
compared to RRP £17.47

£12.99
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NGK 3228 Spark plug M10 x 1,0, Spanner Size: 16 mm
Article number: 3228
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  • Spark Plug: Connector Type M4, Nickel Middle Electrode, 1 - Earthed Electrode, no interference suppression, with gasket seat
  • Spanner Size: 16 mm
  • Thread Length [mm]: 12,7
  • Spark Position [mm]: 1,65
  • Thread Size: M10 x 1,0
  • Item number: 3228
  • Manufacturer: NGK
  • EAN number: 0087295132289
  • Condition: New
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In stock
-66%
compared to RRP £4.69

£1.59
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NGK 6221 Spark plug M14 x 1,25, Spanner Size: 16 mm
Article number: 6221
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  • Spark Plug: Unscrewable SAE connector, Nickel Middle Electrode, 1 - Earthed Electrode, no interference suppression, with taper gasket seat
  • Spanner Size: 16 mm
  • Thread Length [mm]: 7,8
  • Spark Position [mm]: 1,0
  • Thread Size: M14 x 1,25
  • Item number: 6221
  • Manufacturer: NGK
  • EAN number: 0087295162217
  • Condition: New
Details
In stock
-71%
compared to RRP £4.79

£1.59
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NGK 2911 Spark plug M14 x 1,25, Spanner Size: 20,8 mm
Article number: 2911
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  • Spark Plug: Unscrewable SAE connector, Nickel Middle Electrode, 1 - Earthed Electrode, no interference suppression, with gasket seat
  • Spanner Size: 20,8 mm
  • Thread Length [mm]: 9,5
  • Spark Position [mm]: 3,5
  • Thread Size: M14 x 1,25
  • Item number: 2911
  • Manufacturer: NGK
  • EAN number: 0087295129111
  • Condition: New
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In stock
-71%
compared to RRP £5.65

£1.99
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NGK 7311 Spark plug M14 x 1,25, Spanner Size: 20,8 mm
Article number: 7311
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  • Spark Plug: Nickel Middle Electrode, 1 - Earthed Electrode, no interference suppression, with gasket seat, Fixed SAE connector
  • Spanner Size: 20,8 mm
  • Thread Length [mm]: 19,0
  • Spark Position [mm]: 3,0
  • Thread Size: M14 x 1,25
  • Item number: 7311
  • Manufacturer: NGK
  • EAN number: 0087295173114
  • Condition: New
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£1.99
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NGK 2924 Spark plug M14 x 1,25, Spanner Size: 16 mm
Article number: 2924
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  • Spark Plug: Nickel Middle Electrode, 1 - Earthed Electrode, Interference Suppression 5 kOhm, with taper gasket seat, Fixed SAE connector
  • Spanner Size: 16 mm
  • Thread Length [mm]: 11,2
  • Spark Position [mm]: 3,0
  • Thread Size: M14 x 1,25
  • Item number: 2924
  • Manufacturer: NGK
  • EAN number: 0087295129241
  • Condition: New
Details
In stock
-70%
compared to RRP £5.88

£1.99
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NGK 4028 Spark plug M14 x 1,25, Spanner Size: 20,8 mm
Article number: 4028
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  • Spark Plug: Connector Type SAE, Nickel Middle Electrode, 1 - Earthed Electrode, no interference suppression, with gasket seat
  • Spanner Size: 20,8 mm
  • Thread Length [mm]: 19,0
  • Spark Position [mm]: 4,0
  • Thread Size: M14 x 1,25
  • Item number: 4028
  • Manufacturer: NGK
  • EAN number: 0087295140284
  • Condition: New
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£1.99
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NGK 5950 Spark plug M14 x 1,25, Spanner Size: 16 mm
Article number: 5950
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  • Spark Plug: Nickel Middle Electrode, 1 - Earthed Electrode, no interference suppression, with taper gasket seat, Fixed SAE connector
  • Spanner Size: 16 mm
  • Thread Length [mm]: 7,8
  • Spark Position [mm]: 3,0
  • Thread Size: M14 x 1,25
  • Item number: 5950
  • Manufacturer: NGK
  • EAN number: 0087295159507
  • Condition: New
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In stock
-70%
compared to RRP £6.12

£1.99
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NGK 2642 Spark plug M14 x 1,25, Spanner Size: 20,8 mm
Article number: 2642
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  • Spark Plug: Nickel Middle Electrode, 1 - Earthed Electrode, Interference Suppression 5 kOhm, with gasket seat, Fixed SAE connector
  • Spanner Size: 20,8 mm
  • Thread Length [mm]: 19,0
  • Spark Position [mm]: 3,0
  • Thread Size: M14 x 1,25
  • Item number: 2642
  • Manufacturer: NGK
  • EAN number: 0087295126424
  • Condition: New
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£1.99
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  • Spark Plug: Unscrewable SAE connector, Nickel Middle Electrode, 1 - Earthed Electrode, Interference Suppression 5 kOhm, with gasket seat
  • Spanner Size: 20,8 mm
  • Thread Length [mm]: 12,7
  • Spark Position [mm]: 1,0
  • Thread Size: M14 x 1,25
  • Item number: 3722
  • Manufacturer: NGK
  • EAN number: 0087295137222
  • Condition: New
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In stock
-72%
compared to RRP £7.12

£1.99
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NGK 6429 Spark plug M14 x 1,25, Spanner Size: 20,8 mm
Article number: 6429
Submit a review
  • Spark Plug: Nickel Middle Electrode, 1 - Earthed Electrode, Interference Suppression 5 kOhm, with gasket seat, Fixed SAE connector
  • Spanner Size: 20,8 mm
  • Thread Length [mm]: 19,0
  • Spark Position [mm]: 9,5
  • Thread Size: M14 x 1,25
  • Item number: 6429
  • Manufacturer: NGK
  • EAN number: 0087295164297
  • Condition: New
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In stock
-71%
compared to RRP £7.52

£2.29
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NGK 7023 Spark plug M10 x 1,0, Spanner Size: 16 mm
Article number: 7023
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  • Spark Plug: Connector Type M4, Nickel Middle Electrode, 1 - Earthed Electrode, Interference Suppression 5 kOhm, with gasket seat
  • Spanner Size: 16 mm
  • Thread Length [mm]: 12,7
  • Spark Position [mm]: 1,5
  • Thread Size: M10 x 1,0
  • Item number: 7023
  • Manufacturer: NGK
  • EAN number: 0087295170236
  • Condition: New
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In stock
-71%
compared to RRP £7.55

£2.29
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NGK 3725 Spark plug M14 x 1,25, Spanner Size: 20,8 mm
Article number: 3725
Submit a review
  • Spark Plug: Unscrewable SAE connector, Nickel Middle Electrode, 1 - Earthed Electrode, Interference Suppression 5 kOhm, with gasket seat
  • Spanner Size: 20,8 mm
  • Thread Length [mm]: 12,7
  • Spark Position [mm]: 3,5
  • Thread Size: M14 x 1,25
  • Item number: 3725
  • Manufacturer: NGK
  • EAN number: 087295137253
  • Condition: New
Details
In stock
-65%
compared to RRP £6.21

£2.29
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NGK 1097 Spark plug M14 x 1,25, Spanner Size: 20,8 mm
Article number: 1097
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  • Spark Plug: with gasket seat, Unscrewable SAE connector, Nickel Middle Electrode, 1 - Earthed Electrode, Interference Suppression 5 kOhm
  • Spanner Size: 20,8 mm
  • Thread Length [mm]: 19,0
  • Spark Position [mm]: 1,0
  • Thread Size: M14 x 1,25
  • Item number: 1097
  • Manufacturer: NGK
  • EAN number: 0087295110973
  • Condition: New
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In stock
-70%
compared to RRP £6.87

£2.29
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NGK 7926 Spark plug M14 x 1,25, Spanner Size: 20,8 mm
Article number: 7926
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  • Spark Plug: Unscrewable SAE connector, Nickel Middle Electrode, 1 - Earthed Electrode, no interference suppression, with gasket seat
  • Spanner Size: 20,8 mm
  • Thread Length [mm]: 12,7
  • Spark Position [mm]: 4,5
  • Thread Size: M14 x 1,25
  • Item number: 7926
  • Manufacturer: NGK
  • EAN number: 0087295179260
  • Condition: New
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In stock
-71%
compared to RRP £7.39

£2.29
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NGK 6028 Spark plug M14 x 1,25, Spanner Size: 19 mm
Article number: 6028
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  • Spark Plug: Unscrewable SAE connector, Nickel Middle Electrode, 1 - Earthed Electrode, Interference Suppression 5 kOhm, with gasket seat
  • Spanner Size: 19 mm
  • Thread Length [mm]: 9,5
  • Spark Position [mm]: 3,0
  • Thread Size: M14 x 1,25
  • Item number: 6028
  • Manufacturer: NGK
  • EAN number: 0087295160282
  • Condition: New
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In stock
-71%
compared to RRP £7.13

£2.29
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NGK 1270 Spark plug M14 x 1,25, Spanner Size: 16 mm
Article number: 1270
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  • Spark Plug: Unscrewable SAE connector, Nickel Middle Electrode, 1 - Earthed Electrode, Interference Suppression 5 kOhm, with taper gasket seat
  • Spanner Size: 16 mm
  • Thread Length [mm]: 7,8
  • Spark Position [mm]: 3,0
  • Thread Size: M14 x 1,25
  • Item number: 1270
  • Manufacturer: NGK
  • EAN number: 0087295112700
  • Condition: New
Details
In stock
-71%
compared to RRP £6.98

£2.29
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  • Spark Plug: Nickel Middle Electrode, 1 - Earthed Electrode, no interference suppression, with gasket seat, Fixed SAE connector
  • Spanner Size: 20,8 mm
  • Thread Length [mm]: 19,0
  • Spark Position [mm]: 3,0
  • Thread Size: M14 x 1,25
  • Item number: 7529
  • Manufacturer: NGK
  • EAN number: 0087295175293
  • Condition: New
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In stock
-19%
compared to RRP £3.50

£2.99
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  • Product line: V-Line
  • Spark Plug: Unscrewable SAE connector, Nickel Middle Electrode, 1 - Earthed Electrode, no interference suppression, with gasket seat
  • Spanner Size: 20,8 mm
  • Thread Length [mm]: 19,0
  • Spark Position [mm]: 3,0
  • Thread Size: M14 x 1,25
  • Item number: 5637
  • Manufacturer: NGK
  • EAN number: 0087295156377
  • Condition: New
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In stock
£2.99
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  • Spark Plug: Unscrewable SAE connector, Nickel Middle Electrode, 1 - Earthed Electrode, no interference suppression, with gasket seat
  • Spanner Size: 20,8 mm
  • Thread Length [mm]: 19,0
  • Spark Position [mm]: 3,0
  • Thread Size: M14 x 1,25
  • Item number: 7811
  • Manufacturer: NGK
  • EAN number: 0087295178119
  • Condition: New
Show OEM numbers of the product
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In stock
£2.99
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