4x NGK Iridium IX UR4IX Spark Plug | High Performance OE Replacement | Superior Durability & Ignitability

NGK Spark Plugs
New
MPN:
7401
UPC:
087295174012
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Note: Spark Plug, Iridium IX Spark Plug, UR4IX, OE Replacement, Single, 14 Millimeter Threads

Vehicle Fitment

  • 1973-1974 Buick Apollo
  • 1971-1973 Buick Centurion
  • 1973-1974 Buick Century
  • 1977-1980 Buick Century
  • 1991-1991 Buick Commercial Chassis
  • 1967-1974 Buick Electra
  • 1970-1974 Buick Estate Wagon
  • 1967-1967 Buick Gran Sport
  • 1970-1972 Buick GS
  • 1968-1969 Buick GS 350
  • 1968-1969 Buick GS 400
  • 1970-1972 Buick GS 455
  • 1968-1974 Buick LeSabre
  • 1978-1980 Buick LeSabre
  • 1973-1974 Buick Regal
  • 1977-1981 Buick Regal
  • 1984-1987 Buick Regal
  • 1967-1974 Buick Riviera
  • 1979-1981 Buick Riviera
  • 1984-1985 Buick Riviera
  • 1991-1991 Buick Roadmaster
  • 1967-1972 Buick Skylark
  • 1977-1979 Buick Skylark
  • 1968-1969 Buick Special
  • 1968-1972 Buick Sportwagon
  • 1967-1970 Buick Wildcat
  • 1991-1992 Cadillac Brougham
  • 1993-1993 Cadillac Commercial Chassis
  • 1993-1993 Cadillac Fleetwood
  • 1970-1974 Checker Marathon
  • 1976-1978 Checker Marathon
  • 1971-1971 Chevrolet Bel Air
  • 1971-1971 Chevrolet Biscayne
  • 1971-1971 Chevrolet Blazer
  • 1971-1971 Chevrolet Brookwood
  • 1976-1986 Chevrolet C10
  • 1971-1971 Chevrolet C10 Pickup
  • 1971-1971 Chevrolet C10 Suburban
  • 1976-1986 Chevrolet C10 Suburban
  • 1976-1986 Chevrolet C20
  • 1971-1971 Chevrolet C20 Pickup
  • 1971-1971 Chevrolet C20 Suburban
  • 1976-1986 Chevrolet C20 Suburban
  • 1976-1984 Chevrolet C30
  • 1971-1971 Chevrolet C30 Pickup
  • 1971-1971 Chevrolet Camaro
  • 1975-1992 Chevrolet Camaro
  • 1971-1971 Chevrolet Caprice
  • 1976-1993 Chevrolet Caprice
  • 1971-1971 Chevrolet Chevelle
  • 1971-1971 Chevrolet Corvette
  • 1976-1982 Chevrolet Corvette
  • 1984-1984 Chevrolet Corvette
  • 1988-1991 Chevrolet Corvette
  • 1970-1971 Chevrolet El Camino
  • 1976-1985 Chevrolet El Camino
  • 1987-1987 Chevrolet El Camino
  • 1976-1984 Chevrolet G10
  • 1971-1971 Chevrolet G10 Van
  • 1976-1984 Chevrolet G20
  • 1971-1971 Chevrolet G20 Van
  • 1976-1984 Chevrolet G30
  • 1971-1971 Chevrolet G30 Van
  • 1971-1971 Chevrolet Impala
  • 1976-1985 Chevrolet Impala
  • 1976-1986 Chevrolet K10
  • 1971-1971 Chevrolet K10 Pickup
  • 1971-1971 Chevrolet K10 Suburban
  • 1976-1983 Chevrolet K10 Suburban
  • 1986-1986 Chevrolet K10 Suburban
  • 1976-1985 Chevrolet K20
  • 1971-1971 Chevrolet K20 Pickup
  • 1971-1971 Chevrolet K20 Suburban
  • 1976-1986 Chevrolet K20 Suburban
  • 1977-1980 Chevrolet K30
  • 1982-1984 Chevrolet K30
  • 1971-1971 Chevrolet K30 Pickup
  • 1976-1986 Chevrolet K5 Blazer
  • 1970-1971 Chevrolet Kingswood
  • 1976-1976 Chevrolet Laguna
  • 1975-1983 Chevrolet Malibu
  • 1971-1971 Chevrolet Monte Carlo
  • 1976-1988 Chevrolet Monte Carlo
  • 1976-1979 Chevrolet Monza
  • 1971-1971 Chevrolet Nova
  • 1975-1979 Chevrolet Nova
  • 1977-1979 Chevrolet P10
  • 1971-1972 Chevrolet P10 Van
  • 1976-1976 Chevrolet P20
  • 1979-1984 Chevrolet P20
  • 1970-1972 Chevrolet P20 Van
  • 1976-1976 Chevrolet P30
  • 1978-1984 Chevrolet P30
  • 1970-1972 Chevrolet P30 Van
  • 1970-1971 Chevrolet Townsman
  • 1976-1976 Chevrolet Vega
  • 1980-1983 Chrysler Cordoba
  • 1983-1983 Chrysler Fifth Avenue
  • 1978-1981 Chrysler LeBaron
  • 1982-1982 Chrysler New Yorker
  • 1979-1981 Chrysler Newport
  • 1978-1981 Chrysler Town & Country
  • 1976-1980 Dodge Aspen
  • 1975-1980 Dodge B100
  • 1974-1974 Dodge B100 Van
  • 1981-1987 Dodge B150
  • 1975-1980 Dodge B200
  • 1974-1974 Dodge B200 Van
  • 1981-1987 Dodge B250
  • 1975-1980 Dodge B300
  • 1974-1974 Dodge B300 Van
  • 1975-1975 Dodge CB300
  • 1977-1979 Dodge CB300
  • 1976-1976 Dodge Charger
  • 1975-1976 Dodge Coronet
  • 1975-1979 Dodge D100
  • 1984-1987 Dodge D100
  • 1977-1987 Dodge D150
  • 1975-1980 Dodge D200
  • 1981-1987 Dodge D250
  • 1975-1978 Dodge D300
  • 1975-1976 Dodge Dart
  • 1978-1983 Dodge Diplomat
  • 1980-1983 Dodge Mirada
  • 1977-1978 Dodge Monaco
  • 1975-1980 Dodge Ramcharger
  • 1979-1981 Dodge St. Regis
  • 1975-1977 Dodge W100
  • 1984-1987 Dodge W100
  • 1978-1987 Dodge W150
  • 1975-1980 Dodge W200
  • 1981-1982 Dodge W250
  • 1975-1978 Dodge W300
  • 1982-1982 Dodge W350
  • 1976-1988 Ford Bronco
  • 1970-1974 Ford Country Sedan
  • 1970-1974 Ford Country Squire
  • 1970-1972 Ford Custom
  • 1970-1976 Ford Custom 500
  • 1975-1983 Ford E-100 Econoline
  • 1975-1983 Ford E-100 Econoline Club Wagon
  • 1975-1988 Ford E-150 Econoline
  • 1975-1985 Ford E-150 Econoline Club Wagon
  • 1975-1988 Ford E-250 Econoline
  • 1975-1991 Ford E-250 Econoline Club Wagon
  • 1975-1996 Ford E-350 Econoline
  • 1977-1996 Ford E-350 Econoline Club Wagon
  • 1996-1996 Ford Econoline Super Duty
  • 1975-1976 Ford Elite
  • 1988-1988 Ford F Super Duty
  • 1990-1996 Ford F Super Duty
  • 1973-1974 Ford F-100
  • 1976-1979 Ford F-100
  • 1981-1982 Ford F-100
  • 1975-1988 Ford F-150
  • 1973-1996 Ford F-250
  • 1973-1996 Ford F-350
  • 1969-1970 Ford Fairlane
  • 1970-1970 Ford Falcon
  • 1969-1974 Ford Galaxie 500
  • 1972-1976 Ford Gran Torino
  • 1975-1976 Ford Granada
  • 1970-1976 Ford LTD
  • 1981-1986 Ford LTD
  • 1987-1991 Ford LTD Crown Victoria
  • 1975-1976 Ford Maverick
  • 1969-1973 Ford Mustang
  • 1984-1985 Ford Mustang
  • 1975-1976 Ford Mustang II
  • 1976-1976 Ford P-350
  • 1976-1976 Ford P-400
  • 1976-1977 Ford P-500
  • 1970-1974 Ford Ranch Wagon
  • 1970-1977 Ford Ranchero
  • 1972-1973 Ford Thunderbird
  • 1975-1976 Ford Thunderbird
  • 1970-1976 Ford Torino
  • 1976-1978 GMC C15
  • 1976-1978 GMC C15 Suburban
  • 1971-1971 GMC C15/C1500 Pickup
  • 1971-1971 GMC C15/C1500 Suburban
  • 1979-1986 GMC C1500
  • 1979-1986 GMC C1500 Suburban
  • 1976-1978 GMC C25
  • 1976-1978 GMC C25 Suburban
  • 1971-1971 GMC C25/C2500 Pickup
  • 1971-1971 GMC C25/C2500 Suburban
  • 1979-1986 GMC C2500
  • 1979-1986 GMC C2500 Suburban
  • 1976-1978 GMC C35
  • 1971-1971 GMC C35/C3500 Pickup
  • 1979-1980 GMC C3500
  • 1982-1984 GMC C3500
  • 1986-1986 GMC C3500
  • 1978-1987 GMC Caballero
  • 1976-1978 GMC G15
  • 1971-1971 GMC G15/G1500 Van
  • 1979-1984 GMC G1500
  • 1976-1978 GMC G25
  • 1971-1971 GMC G25/G2500 Van
  • 1979-1984 GMC G2500
  • 1976-1978 GMC G35
  • 1971-1971 GMC G35/G3500 Van
  • 1979-1984 GMC G3500
  • 1971-1971 GMC Jimmy
  • 1976-1983 GMC Jimmy
  • 1985-1986 GMC Jimmy
  • 1976-1978 GMC K15
  • 1976-1978 GMC K15 Suburban
  • 1971-1971 GMC K15/K1500 Pickup
  • 1971-1971 GMC K15/K1500 Suburban
  • 1979-1986 GMC K1500
  • 1979-1984 GMC K1500 Suburban
  • 1976-1978 GMC K25
  • 1976-1978 GMC K25 Suburban
  • 1971-1971 GMC K25/K2500 Pickup
  • 1971-1971 GMC K25/K2500 Suburban
  • 1979-1985 GMC K2500
  • 1979-1984 GMC K2500 Suburban
  • 1977-1978 GMC K35
  • 1971-1971 GMC K35/K3500 Pickup
  • 1979-1984 GMC K3500
  • 1971-1971 GMC P15/P1500 Van
  • 1979-1979 GMC P1500
  • 1976-1976 GMC P25
  • 1970-1971 GMC P25/P2500 Van
  • 1979-1984 GMC P2500
  • 1976-1976 GMC P35
  • 1978-1978 GMC P35
  • 1970-1971 GMC P35/P3500 Van
  • 1979-1984 GMC P3500
  • 1971-1971 GMC Sprint
  • 1975-1977 GMC Sprint
  • 1969-1971 Jeep J-100
  • 1969-1971 Jeep J-2500
  • 1969-1970 Jeep J-2600
  • 1969-1970 Jeep J-2700
  • 1969-1970 Jeep J-3500
  • 1969-1970 Jeep J-3600
  • 1969-1970 Jeep J-3700
  • 1969-1970 Jeep J-3800
  • 1971-1971 Jeep Wagoneer
  • 1973-1976 Lincoln Continental
  • 1973-1976 Lincoln Mark IV
  • 1984-1985 Mercury Capri
  • 1970-1974 Mercury Colony Park
  • 1971-1976 Mercury Comet
  • 1969-1978 Mercury Cougar
  • 1969-1971 Mercury Cyclone
  • 1975-1976 Mercury Grand Marquis
  • 1978-1978 Mercury Grand Marquis
  • 1986-1986 Mercury Grand Marquis
  • 1971-1976 Mercury Marquis
  • 1978-1978 Mercury Marquis
  • 1975-1977 Mercury Monarch
  • 1970-1976 Mercury Montego
  • 1971-1974 Mercury Monterey
  • 1977-1977 Oldsmobile Custom Cruiser
  • 1991-1992 Oldsmobile Custom Cruiser
  • 1970-1971 Oldsmobile Cutlass
  • 1976-1976 Oldsmobile Cutlass
  • 1978-1980 Oldsmobile Cutlass
  • 1978-1980 Oldsmobile Cutlass Calais
  • 1980-1980 Oldsmobile Cutlass Cruiser
  • 1982-1982 Oldsmobile Cutlass Cruiser
  • 1978-1980 Oldsmobile Cutlass Salon
  • 1976-1976 Oldsmobile Cutlass Supreme
  • 1978-1980 Oldsmobile Cutlass Supreme
  • 1977-1977 Oldsmobile Delta 88
  • 1970-1971 Oldsmobile F85
  • 1973-1974 Oldsmobile Omega
  • 1976-1979 Oldsmobile Omega
  • 1977-1979 Oldsmobile Starfire
  • 1974-1976 Plymouth Duster
  • 1975-1978 Plymouth Fury
  • 1980-1983 Plymouth Gran Fury
  • 1975-1980 Plymouth PB100
  • 1974-1974 Plymouth PB100 Van
  • 1981-1983 Plymouth PB150
  • 1975-1978 Plymouth PB200
  • 1980-1980 Plymouth PB200
  • 1974-1974 Plymouth PB200 Van
  • 1981-1983 Plymouth PB250
  • 1975-1976 Plymouth Scamp
  • 1975-1980 Plymouth Trailduster
  • 1975-1976 Plymouth Valiant
  • 1976-1980 Plymouth Volare
  • 1972-1974 Pontiac Bonneville
  • 1983-1986 Pontiac Bonneville
  • 1972-1974 Pontiac Catalina
  • 1970-1974 Pontiac Firebird
  • 1976-1985 Pontiac Firebird
  • 1987-1992 Pontiac Firebird
  • 1973-1974 Pontiac Grand Am
  • 1978-1980 Pontiac Grand Am
  • 1976-1980 Pontiac Grand LeMans
  • 1972-1974 Pontiac Grand Prix
  • 1978-1980 Pontiac Grand Prix
  • 1983-1987 Pontiac Grand Prix
  • 1972-1974 Pontiac Grand Safari
  • 1972-1974 Pontiac Grandville
  • 1972-1973 Pontiac GTO
  • 1970-1974 Pontiac LeMans
  • 1976-1980 Pontiac LeMans
  • 1983-1986 Pontiac Parisienne
  • 1977-1979 Pontiac Phoenix
  • 1978-1979 Pontiac Sunbird
  • 1970-1970 Pontiac Tempest
  • 1971-1974 Pontiac Ventura
  • 1976-1977 Pontiac Ventura

Key Features

  • Fine Iridium Tip Ensures High Durability And A Consistently Stable Spark
  • Iridium Alloy Has Extremely High Melting Point, Perfect For Todays High Tech, High Performance Engines
  • Trivalent Metal Plating Provides Superior Anti-Corrosion And Anti-Seizing Properties
  • Outstanding Acceleration, High Fuel Efficiency And Durability
  • Ultimate Design, Technology And Performance
  • Offers Extreme Ignitability, Improved Throttle Response And Superior Anti Fouling
  • No Supplier Warranty

Specifications for each of the 4 items

  • Resistor: Yes
  • Electrode Type: Taper Cut
  • Electrode Core Material: Iridium
  • Electrode Tip Material: Nickel
  • Insulator Type: Projected
  • Thread Size IN: 0.551 Inch
  • Quantity: Single
  • Reach: 0.438 Inch
  • Seat Type: Tapered
  • Wrench Diameter: 5/8 Inch