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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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    Liter

    1963-1968 DODGE DART

    • CC: 2786
    • Liter: 2.8
    • SubModel: BASE
    • CUI: 170
    • EngineType: L6 ( 2.8 L / 170 )

    1981 PLYMOUTH PB250 VAN

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

    1968 PONTIAC TEMPEST

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

    1977-1979 DODGE D300 PICKUP

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

    1982-1984 DODGE RAMPAGE

    • EngineType: ALL
    • SubModel: ALL

    1964 AMERICAN MOTORS AMERICAN

    • EngineType: ALL
    • SubModel: 440H

    1974 DODGE CORONET

    • CC: 5900
    • Liter: 5.9
    • SubModel: CRESTWOOD
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1966 CHEVROLET P10 SERIES

    • EngineType: L6 ( 3.2 L / 194 )
    • SubModel: BASE

    1974 PLYMOUTH SATELLITE

    • CC: 5900
    • Liter: 5.9
    • SubModel: SEBRING
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1980 DODGE B300 VAN

    • EngineType: ALL
    • SubModel: MAXI

    1973 JEEP WAGONEER

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

    1971 DODGE CHARGER

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

    1984-1985 OLDSMOBILE FIRENZA

    • Liter: 1.8
    • SubModel: GT
    • CUI: 112
    • EngineType: L4 ( 1.8 L / 112 )

    1974 PLYMOUTH PB200 VAN

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

    1970 PLYMOUTH FURY

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

    1968-1969 CHEVROLET CHEVELLE

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

    1968-1970 DODGE CORONET

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

    1975 DODGE CORONET

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

    1975-1980 CHEVROLET LUV PICKUP

    • EngineType: ALL
    • SubModel: ALL

    1969-1970 JEEP J-3700

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

    1967 JEEP GLADIATOR

    • CC: 3802
    • Liter: 3.8
    • SubModel: BASE
    • CUI: 232
    • EngineType: L6 ( 3.8 L / 232 )

    1972-1974 PLYMOUTH ROAD RUNNER

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

    1970 AMERICAN MOTORS REBEL

    • CC: 5900
    • Liter: 5.9
    • SubModel: BASE
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1993 DODGE SHADOW

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

    1970-1974 CADILLAC FLEETWOOD

    • CC: 7735
    • Liter: 7.7
    • SubModel: 60 SPECIAL
    • CUI: 472
    • EngineType: V8 ( 7.7 L / 472 )

    1972-1973 PLYMOUTH GRAN FURY

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

    1968 DODGE DART

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

    1971-1974 PLYMOUTH SATELLITE

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

    1975 PLYMOUTH VALIANT

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

    1981-1982 CHEVROLET LUV PICKUP

    • Liter: 1.8
    • SubModel: MIKADO
    • CUI: 111
    • EngineType: L4 ( 1.8 L / 111 )

    1979 DODGE DIPLOMAT

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

    1988-1993 DODGE DYNASTY

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

    1978-1979 AMERICAN MOTORS AMX

    • CC: 4982
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 304
    • EngineType: V8 ( 5.0 L / 304 )

    1989-1990 PONTIAC LEMANS

    • EngineType: ALL
    • SubModel: GSE

    1969 AMERICAN MOTORS REBEL

    • Liter: 5.6
    • SubModel: BASE
    • CUI: 343
    • EngineType: V8 ( 5.6 L / 343 )

    1961-1965 DODGE D100 PICKUP

    • Liter: 2.8
    • SubModel: BASE
    • CUI: 170
    • EngineType: L6 ( 2.8 L / 170 )

    1991-1992 PLYMOUTH SUNDANCE

    • EngineType: ALL
    • SubModel: HIGH LINE

    1979 DODGE D100 PICKUP

    • EngineType: ALL
    • SubModel: ESTACAS

    1983-1985 CHRYSLER LEBARON

    • CC: 2213
    • Liter: 2.2
    • SubModel: BASE
    • CUI: 135
    • EngineType: L4 ( 2.2 L / 135 )

    1984-1987 DODGE D100 PICKUP

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

    1971 DODGE POLARA

    • CC: 5900
    • Liter: 5.9
    • SubModel: CUSTOM
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1958 PLYMOUTH CUSTOM

    • CC: 5212
    • Liter: 5.2
    • SubModel: BASE
    • 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 )

    1968 PLYMOUTH FURY III

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

    1967 GMC G15/G1500 VAN

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

    1971 DODGE DART

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

    1973 DODGE DART

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

    1971-1974 PLYMOUTH SATELLITE

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

    1965-1966 CHEVROLET CHEVELLE

    • Liter: 3.2
    • SubModel: DELUXE
    • CUI: 194
    • EngineType: L6 ( 3.2 L / 194 )

    1967 GMC P25/P2500 VAN

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

    1968-1969 GMC G25/G2500 VAN

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

    1969 PLYMOUTH BELVEDERE

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

    1989 DODGE SPIRIT

    • EngineType: ALL
    • SubModel: BASE

    1971 DODGE POLARA

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

    1984-1987 DODGE CARAVAN

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

    1972-1973 MERCURY CAPRI

    • CC: 2606
    • Liter: 2.6
    • SubModel: BASE
    • EngineType: V6 ( 2.6 L / 2606 CC )

    1973 DODGE CORONET

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

    1969-1971 INTERNATIONAL M1200

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

    1979-1981 CHRYSLER LEBARON

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

    1994 DODGE SHADOW

    • EngineType: ALL
    • SubModel: BASE

    1972-1973 DODGE DART

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

    1969 DODGE DART

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

    1970 DODGE A100 PICKUP

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

    1972 AMERICAN MOTORS JAVELIN

    • EngineType: ALL
    • SubModel: SST

    1974 DODGE MONACO

    • CC: 5900
    • Liter: 5.9
    • SubModel: CUSTOM
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1975-1976 DODGE D200 PICKUP

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

    1969 GMC K35/K3500 PICKUP

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

    1988-1989 PLYMOUTH HORIZON

    • EngineType: ALL
    • SubModel: TURISMO

    1963-1965 CHEVROLET P20 SERIES

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

    1965-1966 CHEVROLET CHEVELLE

    • CC: 3180
    • Liter: 3.2
    • SubModel: BASE
    • CUI: 194
    • EngineType: L6 ( 3.2 L / 194 )

    1970 DODGE A100 VAN

    • EngineType: ALL
    • SubModel: ALL

    1968-1969 CHEVROLET G20 VAN

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

    1970 DODGE D100 PICKUP

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

    1968-1969 AMERICAN MOTORS AMX

    • Liter: 4.8
    • SubModel: BASE
    • CUI: 290
    • EngineType: V8 ( 4.8 L / 290 )

    1976 PLYMOUTH DUSTER

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

    1971 DODGE D100 PICKUP

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

    1971 DODGE B200 VAN

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

    1980 PLYMOUTH GRAN FURY

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

    1975-1976 PLYMOUTH GRAN FURY

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

    1975-1976 DODGE DART

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

    1972 DODGE CHALLENGER

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

    1989-1991 DODGE D250 PICKUP

    • Liter: 3.9
    • SubModel: BASE
    • CUI: 239
    • EngineType: V6 ( 3.9 L / 239 )

    1962 DODGE LANCER

    • CC: 2786
    • Liter: 2.8
    • SubModel: BASE
    • CUI: 170
    • EngineType: L6 ( 2.8 L / 170 )

    1968-1969 AMERICAN MOTORS AMBASSADOR

    • Liter: 4.8
    • SubModel: SST
    • CUI: 290
    • EngineType: V8 ( 4.8 L / 290 )

    1966 CHEVROLET K20 PICKUP

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

    1968-1969 CHEVROLET G20 VAN

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

    1967-1968 AMERICAN MOTORS AMERICAN

    • CC: 4753
    • Liter: 4.7
    • SubModel: BASE
    • CUI: 290
    • EngineType: V8 ( 4.7 L / 290 )

    1971-1974 DODGE B300 VAN

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

    1956 CHRYSLER ST REGIS

    • EngineType: ALL
    • SubModel: ALL

    1968 PLYMOUTH FURY I

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

    1975 PLYMOUTH SCAMP

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

    1964 DODGE POLARA

    • Liter: 2.8
    • SubModel: BASE
    • CUI: 170
    • EngineType: L6 ( 2.8 L / 170 )

    1989-1992 DODGE D250 PICKUP

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

    1968-1969 GMC G15/G1500 VAN

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

    1969 OLDSMOBILE F85

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

    1976-1978 DODGE D100 PICKUP

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

    1971 DODGE D100 PICKUP

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

    1974-1980 DODGE RAMCHARGER

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

    1967-1968 JEEP J-100

    • CC: 3802
    • Liter: 3.8
    • SubModel: BASE
    • CUI: 232
    • EngineType: L6 ( 3.8 L / 232 )

    1967 CHEVROLET EL CAMINO

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