# NGK Laser Iridium Long Life Spark Plug Box of 4 (SILFR6A)

NGK Laser Iridium High Ignitability spark plugs offer the best combination of performance and longevity. Engineered specifically for OE applications, Laser Iridium High Ignitability spark plugs are tested to the highest standards to ensure quality and durability. Iridium tipped center electrode provides durability six times harder than platinum. NGKs high grade pure alumina ceramic and 98 percent pure copper core prevents the spark plug from overheating while providing reliable starts. Laser Iridium High Ignitability spark plugs feature raised platinum pad or platinum fine wire tip on the ground electrode for even wear in distributorless ignition systems and improved spark performance.

-   Pure alumina silicate ceramic insulator provides superior strength and better heat transfer
-   Trivalent metal plating for superior anti-corrosion and anti-seizing properties
-   RECOMMENDED USAGE: Best for vehicles with OE SPE iridium alloy plugs
-   Copper core aids in heat removal
-   Triple seals prevent leakage

This Part Fits:

Year

Make

Model

Submodel

2015-2020

Dodge

Challenger

SRT Hellcat

2015-2020

Dodge

Charger

SRT Hellcat

2009

Subaru

Forester

XT

2009-2010

Subaru

Forester

XT Limited

2010-2013

Subaru

Forester

XT Premium

2011-2013

Subaru

Forester

XT Touring

2009-2010

Subaru

Impreza

2.5 GT

2008-2014

Subaru

Impreza

WRX

2010-2014

Subaru

Impreza

WRX Limited

2009-2014

Subaru

Impreza

WRX Premium

2008-2014

Subaru

Impreza

WRX STI

2011-2014

Subaru

Impreza

WRX STI Limited

2010

Subaru

Impreza

WRX STI Special Edition

2005-2006

Subaru

Legacy

GT

2005,2007-2009

Subaru

Legacy

GT Limited

2006-2009

Subaru

Legacy

GT spec.B

2005-2006

Subaru

Outback

XT

2005-2009

Subaru

Outback

XT Limited

2008-2009

Subaru

Tribeca

Base

2008-2009

Subaru

Tribeca

Limited

2015-2018

Subaru

WRX STI

Base

2015

Subaru

WRX STI

Launch Edition

2015-2018

Subaru

WRX STI

Limited

2016

Subaru

WRX STI

Series.HyperBlue

## Details

- **Price:** 109.93 CAD
- **Vendor:** NGK
- **Type:** Spark Plugs

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 109.93 CAD | In stock |

## Images

- Photo - Primary
- Photo - Primary
- Photo - out of package
- Photo - out of package

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/ngk-laser-iridium-long-life-spark-plug-box-of-4-silfr6a)
> Updated: 2026-06-27