NGK Ruthenium HX Spark Plug Set | 16-22+ Civic, 23+ Integra

Fits:

• 2016 - 2021 Honda Civic 2.0L (Coupe FC4, Hatch FK7, Sedan FC2)
  
• 2016 - 2021 Honda Civic 1.5T (Coupe FC3, Hatch FK7, Sedan FC1)
  
• 2017 - 2020 Honda Civic Si (Coupe FC3, Sedan FC1)
  
• 2017 - 2021 Honda Civic Type R (Hatch FK8)
• 2022+ Honda Civic 2.0L (Hatch FL2, Sedan FE2)
  
• 2022+ Honda Civic 1.5T (Hatch FL1, Sedan FE1)
  
• 2022+ Honda Civic Si (Sedan FE1)
  
• 2023+ Honda Civic Type R (Hatch FL5)
  
• 2023+ Acura Integra Base/A-Spec (Hatch DE4)
  
• 2023+ Acura Integra Type S (Hatch DE5)
• 2018 - 2022 Honda Accord 1.5T (Sedan CV1)
  
• 2018 - 2022 Honda Accord 2.0T (Sedan CV2)

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NGK Ruthenium HX Spark Plugs (Box of 4)

NGK LKAR8BHX 91784 Ruthenium HX Spark Plugs are engineered for modern engines that demand high ignitability, durability, and efficient combustion. Built with NGK’s advanced Ruthenium HX technology, these plugs deliver consistent performance, quicker starts and smoother operation across a wide range of driving conditions — whether you daily drive, track, or mod your ride.

🔧 Key Features & Benefits

High Ignitability Design
Engineered with patented Ruthenium alloy center electrodes and advanced tip geometry for a more complete fuel burn, resulting in quicker throttle response, smoother idle & improved cold starts.

Superior Durability
Ruthenium resists wear and corrosion better than conventional precious metals, providing stable performance over extended service life.

OEM-Equivalent Fit & Finish
Direct replacement spark plug with correct heat range and resistance — designed to match or exceed OEM specifications for reliable performance and longevity.

Box of 4
Perfect for a complete 4-cylinder tune-up, ensuring balanced combustion and optimized engine responsiveness right out of the box.

📌 Technical Specs

• Part Number: LKAR8BHX / 91784

• Electrode Material: Ruthenium center

• Heat Range: 8

• Resistor: Yes (5kΩ)

• Thread Size: 12 mm

• Torque Spec: 10.8–18 lb-ft (cast iron) / 10.8–14.5 lb-ft (aluminum)

🚗 Why Upgrade to Ruthenium HX?

NGK’s Ruthenium HX plugs are ideal for newer, high-ignitability engines that benefit from enhanced combustion stability. Compared to standard plugs, they help your engine fire more efficiently — which can translate to smoother idle and better throttle response — while delivering exceptional longevity.