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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
ON SALE - $0.67 OFF
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

    1982 OLDSMOBILE FIRENZA

    • EngineType: ALL
    • SubModel: SX

    1977-1980 DODGE D200 PICKUP

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

    1971 AMERICAN MOTORS HORNET

    • CC: 5899
    • Liter: 5.9
    • SubModel: SPORTABOUT
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1983 DODGE DIPLOMAT

    • CC: 5211
    • Liter: 5.2
    • SubModel: MEDALLION
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1975 DODGE ROYAL MONACO

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

    1983-1985 CHRYSLER LEBARON

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

    1967 DODGE CORONET

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

    1968 CHEVROLET C30 PICKUP

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

    1968 DODGE DART

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

    1971 DODGE DART

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

    1968-1970 JEEP J-2600

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

    1990 CHRYSLER LEBARON

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

    1968-1969 AMERICAN MOTORS AMBASSADOR

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

    1968-1969 CHEVROLET EL CAMINO

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

    1972 PLYMOUTH SATELLITE

    • CC: 5572
    • Liter: 5.6
    • SubModel: CUSTOM
    • 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 )

    1966 CHEVROLET P10 SERIES

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

    1968-1969 BUICK SKYLARK

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

    1990 DODGE DAYTONA

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

    1976-1978 PLYMOUTH PB300 VAN

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

    1967-1970 DODGE CORONET

    • CC: 3687
    • Liter: 3.7
    • SubModel: 500
    • CUI: 225
    • EngineType: L6 ( 3.7 L / 225 )

    1960-1963 PLYMOUTH FLEET SPECIAL

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

    1971 DODGE POLARA

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

    1982 DODGE OMNI

    • EngineType: ALL
    • SubModel: 024 MISER

    1975-1978 PLYMOUTH FURY

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

    1972-1974 DODGE B200 VAN

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

    1988 CHRYSLER NEW YORKER

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

    1970-1972 DODGE CHALLENGER

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

    1984 OLDSMOBILE FIRENZA

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

    1972 DODGE CHALLENGER

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

    1970-1971 PLYMOUTH BARRACUDA

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

    1968 PLYMOUTH FURY III

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

    1969 CHEVROLET K10 SUBURBAN

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

    1968-1969 PONTIAC FIREBIRD

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

    1970 BENTLEY T1 SERIES

    • CC: 6230
    • Liter: 6.2
    • SubModel: PARK WARD
    • EngineType: V8 ( 6.2 L / 6230 CC )

    1970 AMERICAN MOTORS REBEL

    • CC: 4983
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 304
    • EngineType: V8 ( 5.0 L / 304 )

    1975 PLYMOUTH ROAD RUNNER

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

    1982 DODGE OMNI

    • EngineType: ALL
    • SubModel: 024

    1972-1974 DODGE B200 VAN

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

    1972 AMERICAN MOTORS JAVELIN

    • CC: 4228
    • Liter: 4.2
    • SubModel: BASE
    • CUI: 258
    • EngineType: L6 ( 4.2 L / 258 )

    1982 PLYMOUTH HORIZON

    • EngineType: ALL
    • SubModel: MISER

    1966-1968 AMERICAN MOTORS AMERICAN

    • CC: 3261
    • Liter: 3.3
    • SubModel: BASE
    • CUI: 199
    • EngineType: L6 ( 3.3 L / 199 )

    1984-1987 DODGE B250 VAN

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

    1968 DODGE P100 VAN

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

    1973 DODGE B100 VAN

    • EngineType: ALL
    • SubModel: SPORTSMAN

    1967-1974 DODGE D300 PICKUP

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

    1964-1965 PONTIAC TEMPEST

    • CC: 3524
    • Liter: 3.5
    • SubModel: SAFARI
    • CUI: 215
    • EngineType: L6 ( 3.5 L / 215 )

    1964-1968 AMERICAN MOTORS AMERICAN

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

    1965-1967 AMERICAN MOTORS AMBASSADOR

    • EngineType: ALL
    • SubModel: 990

    1975-1978 DODGE MONACO

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

    1969 INTERNATIONAL M1400

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

    1979 AMERICAN MOTORS CONCORD

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

    1985-1987 DODGE MINI RAM

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

    1972 AMERICAN MOTORS JAVELIN

    • EngineType: ALL
    • SubModel: AMX

    1970 DODGE A100 PICKUP

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

    1985 DODGE 600

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

    1968-1969 AMERICAN MOTORS AMX

    • CC: 5585
    • Liter: 5.6
    • SubModel: BASE
    • CUI: 343
    • EngineType: V8 ( 5.6 L / 343 )

    1969 DODGE DART

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

    1986 DODGE RAMCHARGER

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

    1987 DODGE MINI RAM

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

    1976-1977 DODGE ASPEN

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

    1968-1969 CHEVROLET EL CAMINO

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

    1966 DODGE CORONET

    • Liter: 4.5
    • SubModel: DELUXE
    • CUI: 273
    • EngineType: V8 ( 4.5 L / 273 )

    1955 CHRYSLER TOWN & COUNTRY

    • CC: 4933
    • Liter: 4.9
    • SubModel: BASE
    • CUI: 301
    • EngineType: V8 ( 4.9 L / 301 )

    1976 DODGE CHARGER

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

    1975 PLYMOUTH FURY

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

    1991 DODGE SHADOW

    • EngineType: ALL
    • SubModel: ES

    1978 DODGE CHARGER

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

    1984 PLYMOUTH HORIZON

    • EngineType: ALL
    • SubModel: SE

    1985 CHRYSLER LEBARON

    • EngineType: ALL
    • SubModel: TURBO

    1968-1969 PONTIAC TEMPEST

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

    1976 DODGE DART

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

    1975-1977 DODGE CHARGER

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

    1964-1967 CHEVROLET EL CAMINO

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

    1969 CHEVROLET BISCAYNE

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

    1969-1971 JEEP J-100

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

    1974 DODGE B100 VAN

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

    1976-1978 DODGE D100 PICKUP

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

    1974-1980 DODGE RAMCHARGER

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

    1978-1981 JEEP CJ5

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

    1969 AMERICAN MOTORS RAMBLER

    • CC: 3802
    • Liter: 3.8
    • SubModel: 440
    • CUI: 232
    • EngineType: L6 ( 3.8 L / 232 )

    1974 PLYMOUTH FURY

    • CC: 5899
    • Liter: 5.9
    • SubModel: CUSTOM SUBURBAN
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1969 CHEVROLET K20 SUBURBAN

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

    1968 DODGE DART

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

    1964-1965 CHEVROLET C30 PICKUP

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

    1994-1995 DODGE DAKOTA

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

    1969 CHEVROLET C20 SUBURBAN

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

    1968 PLYMOUTH GTX

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

    1965-1968 PLYMOUTH SATELLITE

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

    1978-1981 JEEP CJ7

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

    1993-1994 PLYMOUTH SUNDANCE

    • EngineType: ALL
    • SubModel: BASE

    1971-1974 DODGE CORONET

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

    1982 DODGE D150 PICKUP

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

    1968-1969 CADILLAC DEVILLE

    • EngineType: ALL
    • SubModel: ALL

    1967 CHEVROLET CHEVY II

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

    1969 PLYMOUTH BARRACUDA

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

    1967 DODGE CHARGER

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

    1963-1965 CHEVROLET BISCAYNE

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

    1968 DODGE CORONET

    • CC: 3687
    • Liter: 3.7
    • SubModel: 440
    • CUI: 225
    • EngineType: L6 ( 3.7 L / 225 )

    1974 PLYMOUTH VALIANT

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