NGK 91784 LKAR8BHX Ruthenium HX Plug (Box of 4)

• 10th Gen Honda Civic Type-R
• 10th Gen Honda Civic 
• 10th Gen Honda Civic Si
• 11th Gen Honda Civic Type-R
• 11th Gen Honda Civic
• 11th Gen Honda Civic Si
• 10th Gen Honda Accord
• 5th Gen Acura Integra
• 5th Gen Acura Integra Type-S
• 3rd Gen Acura RDX
• 2021 Acura TLX 2.0

NGK Ruthenium HX is designed for newer engines which demand high ignitability. Projected Square Platinum Electrode (PSPE) design promotes spark energy concentration and ignites a wider range of air-fuel ratios, offering improved performance in rich or lean engine conditions. 0.4mm Ruthenium alloy fine wire center electrode and 0.8mm platinum fine wire ground electrode. Trivalent metal platinum provides superior anti-corrosion and anti-seizing properties. Corrugated ribs prevent flashover. Pure alumina silicate ceramic insulator provides superior strength and better heat transfer. Copper core aids in heat removal.

Shell Specs

• Thread Diameter: 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)

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

• Material: Platinum
• Type: Projected Square
• Quantity: 1

• Resistor: Yes
• Resistor Value: 5k Ohm
• Heat Range: 8
• Torque Specs: Cast Iron: 10.8-18 lb. ft. Aluminum: 10.8-14.5 lb. ft.

• Brand: NGK/NTK
• Warranty: 1 Year
• Longevity: 60-120k Miles