NGK LKAR8BHX 91784 Ruthenium HX Spark Plugs for R35 GTR & GR Corolla

NGK Ruthenium HX spark plugs for the R35 GTR and GR Corolla are engineered for modern engines requiring high ignitability.

Sold individually. Price is for one plug, please adjust quantity as needed.

Featuring a Projected Square Platinum Electrode (PSPE) design, these plugs focus spark energy to ignite a broader range of air-fuel ratios, enhancing performance in both rich and lean conditions. Each plug includes a 0.4mm ruthenium alloy fine-wire center electrode and a 0.8mm platinum fine-wire ground electrode. The trivalent metal platinum coating resists corrosion and seizing, while corrugated ribs prevent flashover. A pure alumina silicate ceramic insulator ensures exceptional strength and heat transfer, complemented by a copper core for efficient heat dissipation.

Vehicle Fitment:
2009+ Nissan R35 GT-R
2023+ Toyota GR Corolla

Details:
Part Number: LKAR8BHX
Stock Number: 91784
OEM Part Number: 22401JF01D
Heat Range: 8
Resistor: Yes 
Resistor Value: 5K Ohm 

Shell:
• Thread Size: 12mm
• Thread Pitch: 1.25mm
• Seat Type: Gasket
• Reach: 26.5mm (1.04")
• Hex Size: 9/16" (14mm)
• Terminal Type: Solid
• Gap: .031" (0.8mm)

Center Electrode:
• Material: Ruthenium
• Type: Fine Wire
• Size: 0.6mm
• Projection: Extended Projection

Ground Electrode:
• Material: Platinum
• Type: Projected Square

Specifications:
• Cast Iron Torque Specs: 10.8 - 18 lb. ft.
• Aluminum Torque Specs: 10.8 - 14.5 lb. ft.
• Longevity: 60-120k Miles