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NGK Spark Plugs GR4IX

Iridium IX Spark Plug 14mm x 3/4" Reach

NGK Spark Plugs GR4IX

739-GR4IX

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$5.99
$5.32
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NGK Spark Plugs GR4IX Iridium IX Spark Plug 14mm x 3/4" Reach $5.32
Iridium IX Spark Plug
  • 14mm x 3/4" Reach
  • 13/16" Hex
  • Projected
  • Gasket seat
  • Sold Individually

  • Specifications:

    Manufacturer's Part Number:
    GR4IX

    The Plug for Serious Enthusiasts
    Iridium has a very high melting point that's perfect for high-performance, high-tech engines. It is stronger than any other metal used in spark plugs.

  • Ultra-fine electrode (thin enough for spark consistency & accuracy, thick enough for max durability & longevity)
  • Reduces spark voltage requirement
  • Fuel efficiency & extreme ignitability
  • Improved throttle response
  • Outstanding acceleration
  • Superior antifouling, anticorrosion, and antiseizing properties
  • Quality NGK Spark Plugs
  • Sold individually

  • Does NGK Spark Plugs GR4IX fit your vehicle?

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    Aspiration

    1969 DODGE CHARGER

    • Liter: 7.0
    • SubModel: SE
    • CUI: 426
    • EngineType: V8 ( 7.0 L / 426 )

    1976 DODGE CHARGER

    • Liter: 5.2
    • SubModel: SPORT
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1973 DODGE DART

    • CC: 5212
    • Liter: 5.2
    • SubModel: SPORT
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1972-1978 DODGE B300 VAN

    • Liter: 5.9
    • SubModel: MAXI
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1980-1981 JEEP CJ7

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 304
    • EngineType: V8 ( 5.0 L / 304 )

    1957-1958 DODGE CORONET

    • CC: 5327
    • Liter: 5.3
    • SubModel: BASE
    • CUI: 325
    • EngineType: V8 ( 5.3 L / 325 )

    1981-1983 BENTLEY MULSANNE

    • EngineType: ALL
    • SubModel: ALL

    1984 PLYMOUTH HORIZON

    • EngineType: ALL
    • SubModel: SE

    1974-1979 JEEP WAGONEER

    • EngineType: ALL
    • SubModel: ALL

    1970-1971 DODGE CHALLENGER

    • CC: 5572
    • Liter: 5.6
    • SubModel: R/T
    • CUI: 340
    • EngineType: V8 ( 5.6 L / 340 )

    1970-1971 DODGE CHALLENGER

    • CC: 6981
    • Liter: 7.0
    • SubModel: R/T
    • CUI: 426
    • EngineType: V8 ( 7.0 L / 426 )

    1977-1987 DODGE W150 PICKUP

    • Liter: 5.2
    • SubModel: BASE
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1988 PLYMOUTH GRAN FURY

    • EngineType: ALL
    • SubModel: ALL

    1980 CHRYSLER CORDOBA

    • Liter: 5.2
    • SubModel: 300
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1989-1992 DODGE D250 PICKUP

    • EngineType: ALL
    • SubModel: ADVENTURER

    1970-1972 DODGE CHALLENGER

    • CC: 3687
    • Liter: 3.7
    • SubModel: BASE
    • CUI: 225
    • EngineType: L6 ( 3.7 L / 225 )

    1982 DODGE D150 PICKUP

    • Liter: 5.9
    • SubModel: MISER
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1975-1976 DODGE CORONET

    • Liter: 5.9
    • SubModel: BROUGHAM
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1960 CHEVROLET BISCAYNE

    • Liter: 5.7
    • SubModel: FLEETMASTER
    • CUI: 348
    • EngineType: V8 ( 5.7 L / 348 )

    1982 OLDSMOBILE FIRENZA

    • EngineType: ALL
    • SubModel: SX

    1971 DODGE CORONET

    • CC: 5212
    • Liter: 5.2
    • SubModel: BROUGHAM
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1967 GMC G25/G2500 VAN

    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1972-1974 DODGE D200 PICKUP

    • Liter: 5.2
    • SubModel: BASE
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1968 PLYMOUTH GTX

    • CC: 6981
    • Liter: 7.0
    • SubModel: BASE
    • CUI: 426
    • EngineType: V8 ( 7.0 L / 426 )

    1972 DODGE DART

    • CC: 3254
    • Liter: 3.2
    • SubModel: DEMON
    • CUI: 198
    • EngineType: L6 ( 3.2 L / 198 )

    1978-1979 AMERICAN MOTORS CONCORD

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 304
    • EngineType: V8 ( 5.0 L / 304 )

    1985-1986 DODGE CHARGER

    • EngineType: ALL
    • SubModel: SHELBY

    1968 PLYMOUTH VALIANT

    • CC: 5212
    • Liter: 5.2
    • SubModel: SIGNET
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1969 CHEVROLET CAPRICE

    • CC: 6998
    • Liter: 7.0
    • SubModel: BASE
    • CUI: 427
    • EngineType: V8 ( 7.0 L / 427 )

    1989 PLYMOUTH ACCLAIM

    • EngineType: ALL
    • SubModel: LE

    1970-1971 PLYMOUTH GTX

    • CC: 6981
    • Liter: 7.0
    • SubModel: BASE
    • CUI: 426
    • EngineType: V8 ( 7.0 L / 426 )

    1981-1986 ROLLS-ROYCE SILVER SPIRIT

    • EngineType: ALL
    • SubModel: ALL

    1971-1973 DODGE B200 VAN

    • CC: 3687
    • Liter: 3.7
    • SubModel: SPORTSMAN
    • CUI: 225
    • EngineType: L6 ( 3.7 L / 225 )

    1967 DODGE W300 PICKUP

    • Liter: 5.2
    • SubModel: BASE
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1974 DODGE DART

    • EngineType: ALL
    • SubModel: SPORT

    1973 PLYMOUTH CUDA

    • CC: 5212
    • Liter: 5.2
    • SubModel: BASE
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1968 PLYMOUTH VALIANT

    • CC: 3687
    • Liter: 3.7
    • SubModel: SIGNET
    • CUI: 225
    • EngineType: L6 ( 3.7 L / 225 )

    1993 DODGE SHADOW

    • Liter: 2.2
    • SubModel: HIGH LINE
    • CUI: 135
    • EngineType: L4 ( 2.2 L / 135 )

    1963 GMC PB2500 SERIES VAN

    • EngineType: ALL
    • SubModel: ALL

    1969-1970 INTERNATIONAL 1200D

    • EngineType: L6 ( 3.8 L / 232 )
    • SubModel: BASE

    1970 DODGE A100 VAN

    • EngineType: ALL
    • SubModel: ALL

    1969-1970 JEEP J-2600

    • Liter: 3.8
    • SubModel: BASE
    • CUI: 232
    • EngineType: L6 ( 3.8 L / 232 )

    1968-1969 CHEVROLET EL CAMINO

    • CC: 3769
    • Liter: 3.8
    • SubModel: CUSTOM
    • CUI: 230
    • EngineType: L6 ( 3.8 L / 230 )

    1971 DODGE DART

    • CC: 3687
    • Liter: 3.7
    • SubModel: DEMON
    • CUI: 225
    • EngineType: L6 ( 3.7 L / 225 )

    1978-1981 CHRYSLER LEBARON

    • Liter: 5.2
    • SubModel: MEDALLION
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1969 PLYMOUTH SATELLITE

    • Liter: 5.2
    • SubModel: BASE
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1968 PONTIAC LEMANS

    • CC: 4098
    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1985 CHRYSLER LEBARON

    • EngineType: ALL
    • SubModel: GTS

    1991-1992 DODGE SHADOW

    • EngineType: ALL
    • SubModel: AMERICA

    1968-1969 CHEVROLET G20 VAN

    • CC: 3769
    • Liter: 3.8
    • SubModel: SPORTVAN
    • CUI: 230
    • EngineType: L6 ( 3.8 L / 230 )

    1985 PLYMOUTH TURISMO

    • CC: 1595
    • Liter: 1.6
    • SubModel: BASE
    • CUI: 97
    • EngineType: L4 ( 1.6 L / 97 )

    1972-1973 DODGE B200 VAN

    • CC: 3687
    • Liter: 3.7
    • SubModel: MAXI WAGON
    • CUI: 225
    • EngineType: L6 ( 3.7 L / 225 )

    1994 CHRYSLER LEBARON

    • EngineType: ALL
    • SubModel: BASE

    1988-1989 PLYMOUTH RELIANT

    • EngineType: ALL
    • SubModel: AMERICA

    1984-1987 DODGE CARAVAN

    • Liter: 2.2
    • SubModel: BASE
    • CUI: 135
    • EngineType: L4 ( 2.2 L / 135 )

    1969 DODGE DART

    • Liter: 5.2
    • SubModel: GT
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1968-1969 CHEVROLET G10 VAN

    • Liter: 3.8
    • SubModel: SPORTVAN
    • CUI: 230
    • EngineType: L6 ( 3.8 L / 230 )

    1968 CHEVROLET CHEVELLE

    • CC: 4098
    • Liter: 4.1
    • SubModel: 300
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1982 DODGE D150 PICKUP

    • Liter: 5.9
    • SubModel: CLUB CAB
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1974 DODGE DART

    • EngineType: ALL
    • SubModel: CUSTOM

    1969 CHEVROLET CHEVELLE

    • CC: 4097
    • Liter: 4.1
    • SubModel: SS
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1970-1974 PLYMOUTH VALIANT

    • CC: 5212
    • Liter: 5.2
    • SubModel: BASE
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1965-1966 JEEP GLADIATOR

    • Liter: 3.8
    • SubModel: BASE
    • CUI: 232
    • EngineType: L6 ( 3.8 L / 232 )

    1970 DODGE A100 PICKUP

    • Liter: 5.2
    • SubModel: BASE
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1965-1967 JEEP GLADIATOR

    • CC: 3770
    • Liter: 3.8
    • SubModel: BASE
    • CUI: 230
    • EngineType: L6 ( 3.8 L / 230 )

    1990-1991 PLYMOUTH ACCLAIM

    • CC: 2507
    • Liter: 2.5
    • SubModel: LE
    • CUI: 153
    • EngineType: L4 ( 2.5 L / 153 )

    1968 DODGE CORONET

    • CC: 4473
    • Liter: 4.5
    • SubModel: 440
    • CUI: 273
    • EngineType: V8 ( 4.5 L / 273 )

    1968 PLYMOUTH FURY

    • CC: 3687
    • Liter: 3.7
    • SubModel: CUSTOM SUBURBAN
    • CUI: 225
    • EngineType: L6 ( 3.7 L / 225 )

    1981 PLYMOUTH PB150 VAN

    • Liter: 5.2
    • SubModel: VOYAGER
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1974-1980 DODGE W200 PICKUP

    • Liter: 5.9
    • SubModel: BASE
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1983-1985 DODGE 600

    • Liter: 2.2
    • SubModel: ES
    • CUI: 135
    • EngineType: L4 ( 2.2 L / 135 )

    1971 DODGE W300 PICKUP

    • CC: 5212
    • Liter: 5.2
    • SubModel: BASE
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1955 CHRYSLER TOWN & COUNTRY

    • Liter: 4.9
    • SubModel: BASE
    • CUI: 301
    • EngineType: V8 ( 4.9 L / 301 )

    1982 OLDSMOBILE FIRENZA

    • EngineType: ALL
    • SubModel: LX

    1968-1969 GMC G25/G2500 VAN

    • Liter: 4.1
    • SubModel: VANDURA
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1983-1985 CHRYSLER LEBARON

    • Liter: 2.2
    • SubModel: MARK CROSS
    • CUI: 135
    • EngineType: L4 ( 2.2 L / 135 )

    1987-1990 DODGE SHADOW

    • EngineType: ALL
    • SubModel: ALL

    1968 CHEVROLET C20 SUBURBAN

    • CC: 4097
    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1972 DODGE B100 VAN

    • Liter: 5.9
    • SubModel: SPORTSMAN
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1965 CHEVROLET CHEVELLE

    • CC: 3769
    • Liter: 3.8
    • SubModel: BASE
    • CUI: 230
    • EngineType: L6 ( 3.8 L / 230 )

    1969 PLYMOUTH FURY I

    • Liter: 5.2
    • SubModel: BASE
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1963 GMC PB1000 SERIES VAN

    • EngineType: ALL
    • SubModel: ALL

    1956 CHRYSLER ST REGIS

    • EngineType: ALL
    • SubModel: ALL

    1971-1972 MERCURY CAPRI

    • CC: 1599
    • Liter: 1.6
    • SubModel: BASE
    • CUI: 98
    • EngineType: L4 ( 1.6 L / 98 )

    1974 JEEP DJ5C

    • Liter: 3.8
    • SubModel: BASE
    • CUI: 232
    • EngineType: L6 ( 3.8 L / 232 )

    1966 CHEVROLET P30 SERIES

    • EngineType: L6 ( 4.1 L / 250 )
    • SubModel: BASE

    1964-1966 CHEVROLET CHEVY II

    • CC: 3769
    • Liter: 3.8
    • SubModel: NOVA SS
    • CUI: 230
    • EngineType: L6 ( 3.8 L / 230 )

    1988-1989 DODGE CARAVAN

    • EngineType: ALL
    • SubModel: BASE

    1967 DODGE CORONET

    • CC: 3687
    • Liter: 3.7
    • SubModel: BASE
    • CUI: 225
    • EngineType: L6 ( 3.7 L / 225 )

    1980-1983 DODGE MIRADA

    • Liter: 5.2
    • SubModel: SPECIAL COUPE
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1969 DODGE DART

    • CC: 4473
    • Liter: 4.5
    • SubModel: BASE
    • CUI: 273
    • EngineType: V8 ( 4.5 L / 273 )

    1968-1969 GMC G25/G2500 VAN

    • Liter: 4.1
    • SubModel: RALLY
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1981-1982 DODGE D350 PICKUP

    • EngineType: ALL
    • SubModel: BASE

    1963 CHEVROLET IMPALA

    • Liter: 3.8
    • SubModel: BASE
    • CUI: 230
    • EngineType: L6 ( 3.8 L / 230 )

    1980-1981 PLYMOUTH CARAVELLE

    • Liter: 5.2
    • SubModel: SALON
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1973 DODGE DART

    • CC: 3254
    • Liter: 3.2
    • SubModel: SPORT
    • CUI: 198
    • EngineType: L6 ( 3.2 L / 198 )

    1976 DODGE D100 PICKUP

    • Liter: 5.2
    • SubModel: WARLOCK
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1991-1992 DODGE SPIRIT

    • EngineType: ALL
    • SubModel: R/T

    1967 CHEVROLET K10 SUBURBAN

    • CC: 4097
    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1967-1968 CHEVROLET CHEVY II

    • CC: 4098
    • Liter: 4.1
    • SubModel: NOVA
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )
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