Often specified as original equipment, NGK spark plugs offer the best combination of performance and longevity. We deliver the quality, reliability, and durability you expect from OEM manufacturers. NGK is the world's largest supplier of OEM spark plugs. Please research the application before purchasing to ensure this OEM part will fit your vehicle (including engine, drivetrain, and quantity required). This listing is for 8 spark plugs.

NGK IRIDIUM IX Spark Plug 8pcs UR4IX # 7401, Iridium IX Plug, 14mm Thread Size, 11mm Length (7/16"), 5/8" (16mm) Hex Size, Tapered Seat, Resistor, Solid Terminal Nut, Protrusion Tip, Fine Wire (0.6mm) Iridium Center Electrode, Tapered Cut Ground Electrode, .040" (1.02) mm) Gap, Heat Range 4


Manufacturer: ‎NGK Spark Plug
Brand: ‎ NGK
Product size: ‎8.41 x 2.39 x 16.87 cm; 362.87 g
Product model number: ‎7401
Product dimensions Depth x Width x Height: ‎8.4 x 2.4 x 16.9 cm
Product weight: ‎363 g