SKU: 93893 | UPC: 87295938935
NGK Iridium IX Spark Plug LFR6AIX – Box of 4
The NGK Iridium IX Spark Plug LFR6AIX (box of 4) is the #1 selling iridium spark plug upgrade for high-performance and stock engines. Featuring a fine-wire iridium center electrode and a durable platinum ground electrode, these plugs deliver superior ignitability, longer life, and consistent spark under extreme conditions, the ultimate spark plug upgrade for any vehicle requiring reliable ignition, improved fuel efficiency, smoother idle, and enhanced throttle response. NGK, the largest OE spark plug supplier in North America, brings over 80 years of expertise to every plug.
Key Features
- Iridium IX Technology – Fine-wire iridium center electrode for superior spark and longevity
- Platinum Ground Electrode – Enhances durability and consistent performance
- High Ignitability – Improves combustion efficiency for better power and fuel economy
- Long Service Life – Outlasts standard plugs with reduced maintenance
- OE-Quality Reliability – Manufactured to the highest standards for domestic and import vehicles
| Spec | Detail |
|---|---|
| Part Number | 93893 (LFR6AIX) |
| Brand | NGK |
| Type | Iridium IX Spark Plug |
| Quantity | Box of 4 |
| Country of Origin | Japan |
| Warranty | NGK Limited Warranty |
Whats Included
- 4 x NGK Iridium IX Spark Plugs (LFR6AIX)
Product Notes
- Premium iridium spark plugs for improved ignition and engine performance
- Ideal for high-performance, turbocharged, or modified engines
- Direct replacement for many factory plugs
Installation Notes
- Standard spark plug replacement during tune-up
- Estimated time: 30–60 minutes
- Professional installation recommended with proper gap setting and torque
This Part Fits
| Year Range | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 2015-2020 | Dodge | Challenger | SRT Hellcat | Iridium IX Spark Plug |
| 2015-2020 | Dodge | Charger | SRT Hellcat | Iridium IX Spark Plug |
| 2013-2014 | Hyundai | Genesis Coupe | 2.0T / 2.0T Premium / 2.0T R-Spec | Iridium IX Spark Plug |
| 2011-2012 | Land Rover | LR2 | Base / HSE / HSE Lux / SE | Iridium IX Spark Plug |
| 2003-2005 | Mercedes-Benz | C230 | Kompressor | Iridium IX Spark Plug |
| 2003-2006 | Mercedes-Benz | CL55 AMG | Base | Iridium IX Spark Plug |
| 2006 | Mercedes-Benz | CLS55 AMG | Base | Iridium IX Spark Plug |
| 2003-2006 | Mercedes-Benz | E55 AMG | Base | Iridium IX Spark Plug |
| 2005-2011 | Mercedes-Benz | G55 AMG | Base | Iridium IX Spark Plug |
| 2004-2006 | Mercedes-Benz | S55 AMG | Base / Kompressor | Iridium IX Spark Plug |
| 2004-2008 | Mercedes-Benz | SL55 AMG | Base / Kompressor | Iridium IX Spark Plug |
| 2005-2009 | Mercedes-Benz | SLR McLaren | Base | Iridium IX Spark Plug |
| 2006-2012 | Mitsubishi | Eclipse | GS / GS Sport / SE / Spyder GS / Spyder GS Sport / Spyder SE | Iridium IX Spark Plug |
| 2004-2008 | Mitsubishi | Galant | DE / ES / FE / SE / Sport Edition | Iridium IX Spark Plug |
| 2004-2006 | Mitsubishi | Lancer | Ralliart / Sportback / Sportback Ralliart | Iridium IX Spark Plug |
| 2005-2006 | Mitsubishi | Outlander | Limited / LS / SE / XLS | Iridium IX Spark Plug |
| 2006 | Saab | 9-2X | Aero | Iridium IX Spark Plug |
| 2006-2007 | Subaru | B9 Tribeca | Base / Limited | Iridium IX Spark Plug |
| 2004-2006 | Subaru | Baja | Turbo | Iridium IX Spark Plug |
| 2008 | Subaru | Forester | Sports 2.5 XT / XT / XT Limited / XT Premium / XT Touring | Iridium IX Spark Plug |
| 2009-2010 | Subaru | Impreza | 2.5 GT / WRX / WRX Limited / WRX Premium / WRX STI / WRX STI Limited / WRX STI Special Edition / WRX TR | Iridium IX Spark Plug |
| 2010-2012 | Subaru | Legacy | 2.5GT / 3.0 R / 3.0 R Limited / GT / GT Limited / GT spec.B | Iridium IX Spark Plug |
| 2009 | Subaru | Outback | 3.0 R Limited / R / R L.L. Bean Edition / R VDC Limited / VDC Limited / XT / XT Limited | Iridium IX Spark Plug |
| 2008-2009 | Subaru | Tribeca | Base / Limited | Iridium IX Spark Plug |
| 2015-2018 | Subaru | WRX STI | Base / Launch Edition / Limited / Series.HyperBlue | Iridium IX Spark Plug |
| 2008-2013 | Volvo | C30 | T5 / T5 R-Design | Iridium IX Spark Plug |
| 2006-2013 | Volvo | C70 | T5 | Iridium IX Spark Plug |
| 2006-2009,2011 | Volvo | S40 | T5 / T5 R-Design | Iridium IX Spark Plug |
| 2004-2007 | Volvo | S60 | R / T5 / T6 | Iridium IX Spark Plug |
| 2007-2011 | Volvo | S80 | 3.2 / T6 | Iridium IX Spark Plug |
| 2005-2009,2011 | Volvo | V50 | T5 / T5 R-Design | Iridium IX Spark Plug |
| 2008-2010 | Volvo | V70 | 3.2 / R / T5 | Iridium IX Spark Plug |
| 2010-2011 | Volvo | XC60 | 3.2 / 3.2 R-Design / T6 / T6 R-Design | Iridium IX Spark Plug |
| 2008-2011 | Volvo | XC70 | 3.2 / T6 | Iridium IX Spark Plug |
| 2007-2011 | Volvo | XC90 | 3.2 | Iridium IX Spark Plug |
Why Choose NGK Iridium IX Spark Plugs?
- Largest OE spark plug supplier in North America with over 80 years of expertise
- Superior ignitability, longer life, and consistent performance
- Trusted by manufacturers and enthusiasts for reliability in every application
Frequently Asked Questions
- Q: Does this spark plug fit my 2018 Dodge Challenger SRT Hellcat?
A: Yes, listed as a direct fit for 2015-2020 Dodge Challenger SRT Hellcat and many other vehicles. - Q: How many plugs are in the box?
A: Box of 4 Iridium IX spark plugs (LFR6AIX). - Q: Are these better than stock plugs?
A: Yes, iridium technology provides better spark, longer life, and improved engine efficiency.
Shipping & Handling
- Method: Ground UPS or FedEx
- Availability: In stock – ships same or next business day
- Packaging: Official NGK retail box
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