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NGK Spark Plugs GR4

V-Power Spark Plug 14mm x 3/4" Reach with 13/16" Hex Projected Tip, Gasket Seat Resistor Plug

NGK Spark Plugs GR4

739-GR4

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NGK Spark Plugs GR4 V-Power Spark Plug 14mm x 3/4" Reach with 13/16" Hex Projected Tip, Gasket Seat Resistor Plug $1.69
V-Power Spark Plug
  • 14mm x 3/4'' Reach with 13/16'' Hex Projected Tip, Gasket Seat Resistor Plug

  • Specifications:

    Manufacturer's Part Number:
    GR4

    Modern, lean-burning, fuel-efficient engines call for new lower sparking voltage requirements. NGK Spark Plugs responded by developing V-Power Spark Plugs with V-groove center electrodes. The V-groove center electrode forces the spark to the ground electrode's outer edge, placing the spark closer to the air/fuel mixture to ignite it quicker for more complete combustion (thus greater power & less harmful emissions).

    Today's performance engines are often high-compression/high-stress: supercharged, turbocharged, or fed by nitrous oxide. Ideal for high-performance street and race cars, NGK's patented V-groove design allows an ignition system to spark easily in such dense air/fuel mixtures. The flame kernel grows rapidly and enables an engine to potentially make more power because it's operating more efficiently. As a bonus, the spark's outer edge location helps limit the quenching effect, reducing misfires caused by high cylinder pressures "blowing out" the spark. V-Power Spark Plugs also use lower ignition firing voltage, which results in faster starts and easier cold starts throughout the life of the plugs. Sold individually.

    Does NGK Spark Plugs GR4 fit your vehicle?

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    1967 GMC C25/C2500 PICKUP

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

    1968 PLYMOUTH ROAD RUNNER

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

    1969 CHEVROLET K10 SUBURBAN

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

    1990-1995 PLYMOUTH VOYAGER

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

    1992-1993 DODGE DAKOTA

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

    1979 AMERICAN MOTORS PACER

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

    1970 DODGE CORONET

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

    1970-1972 DODGE CHARGER

    • CC: 7212
    • Liter: 7.2
    • SubModel: BASE
    • CUI: 440
    • EngineType: V8 ( 7.2 L / 440 )

    1964 DODGE DART

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

    1976-1977 PLYMOUTH PB200 VAN

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

    1989 PONTIAC LEMANS

    • Liter: 2.0
    • SubModel: LE
    • CUI: 122
    • EngineType: L4 ( 2.0 L / 122 )

    1964-1965 CHEVROLET C30 PICKUP

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

    1977 DODGE DIPLOMAT

    • EngineType: ALL
    • SubModel: ALL

    1967 DODGE W200 PICKUP

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

    1978-1981 DODGE DIPLOMAT

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

    1971-1972 DODGE DART

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

    1990 DODGE DAYTONA

    • EngineType: ALL
    • SubModel: ES TURBO

    1964-1967 CHEVROLET CHEVY II

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

    1968-1969 GMC G15/G1500 VAN

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

    1983 DODGE D350 PICKUP

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

    1969 DODGE CHARGER

    • Liter: 7.0
    • SubModel: 500
    • CUI: 426
    • EngineType: V8 ( 7.0 L / 426 )

    1969 DODGE DART

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

    1969 CHEVROLET C30 PICKUP

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

    1971 CHRYSLER NEWPORT

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

    1991 PLYMOUTH SUNDANCE

    • EngineType: ALL
    • SubModel: RS

    1971 AMERICAN MOTORS HORNET

    • CC: 4229
    • Liter: 4.2
    • SubModel: SPORTABOUT
    • CUI: 258
    • EngineType: L6 ( 4.2 L / 258 )

    1970-1972 PLYMOUTH FURY

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

    1957 DODGE CUSTOM

    • CC: 5802
    • Liter: 5.8
    • SubModel: BASE
    • CUI: 354
    • EngineType: V8 ( 5.8 L / 354 )

    1966 GMC PB15 SERIES VAN

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

    1969 DODGE CORONET

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

    1968-1969 AMERICAN MOTORS AMBASSADOR

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

    1971 DODGE POLARA

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

    1988-1991 PLYMOUTH VOYAGER

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

    1972 DODGE CHALLENGER

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

    1968-1969 AMERICAN MOTORS AMBASSADOR

    • CC: 6391
    • Liter: 6.4
    • SubModel: BASE
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1972 PLYMOUTH SATELLITE

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

    1965-1967 JEEP GLADIATOR

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

    1967 CHEVROLET CHEVELLE

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

    1968-1969 CHEVROLET G20 VAN

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

    1974 DODGE B100 VAN

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

    1975 PLYMOUTH PB300 VAN

    • EngineType: ALL
    • SubModel: ALL

    1973 PLYMOUTH FURY I

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

    1975 DODGE CORONET

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

    1991-1992 DODGE D250 PICKUP

    • EngineType: ALL
    • SubModel: PROSPECTOR

    1988-1990 PONTIAC OPTIMA

    • Liter: 2.0
    • SubModel: BASE
    • CUI: 122
    • EngineType: L4 ( 2.0 L / 122 )

    1972-1975 JEEP CJ6

    • EngineType: ALL
    • SubModel: ALL

    1971 DODGE D100 PICKUP

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

    1984 PLYMOUTH HORIZON

    • Liter: 2.2
    • Aspiration: N
    • SubModel: TURISMO
    • Engine Vin: C
    • CUI: 135
    • EngineType: L4 ( 2.2 L / 135 )

    1971 DODGE CHARGER

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

    1963-1966 CHEVROLET SUBURBAN

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

    1976-1977 PLYMOUTH PB200 VAN

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

    1971 DODGE CHARGER

    • CC: 7212
    • Liter: 7.2
    • SubModel: 500
    • CUI: 440
    • EngineType: V8 ( 7.2 L / 440 )

    1968-1974 DODGE D200 PICKUP

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

    1975 PLYMOUTH GRAN FURY

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

    1968 PLYMOUTH FURY

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

    1981-1982 CHRYSLER CORDOBA

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

    1972-1973 DODGE DART

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

    1967 DODGE CHARGER

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

    1983-1986 OLDSMOBILE FIRENZA

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

    1975-1987 ROLLS-ROYCE CAMARGUE

    • EngineType: ALL
    • SubModel: ALL

    1976 MERCURY BOBCAT

    • Liter: 2.8
    • SubModel: VILLAGER
    • CUI: 171
    • EngineType: V6 ( 2.8 L / 171 )

    1988 JEEP J10

    • EngineType: ALL
    • SubModel: ALL

    1969 PLYMOUTH FURY I

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

    1982 PLYMOUTH HORIZON

    • EngineType: ALL
    • SubModel: E-TYPE

    1986-1988 CHRYSLER TOWN & COUNTRY

    • EngineType: ALL
    • SubModel: ALL

    1991 PLYMOUTH SUNDANCE

    • EngineType: ALL
    • SubModel: AMERICA

    1974 PLYMOUTH VALIANT

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

    1955-1965 ROLLS-ROYCE SILVER CLOUD

    • EngineType: ALL
    • SubModel: ALL

    1968-1969 AMERICAN MOTORS JAVELIN

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

    1968 DODGE CORONET

    • CC: 5212
    • Liter: 5.2
    • SubModel: 440
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1968 PLYMOUTH ROAD RUNNER

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

    1972 JEEP DJ5B

    • EngineType: ALL
    • SubModel: ALL

    1978 JEEP CJ7

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

    1972-1974 DODGE MONACO

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

    1971 PLYMOUTH SATELLITE

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

    1970 BENTLEY T1 SERIES

    • CC: 6750
    • Liter: 6.8
    • SubModel: JAMES YOUNG
    • CUI: 412
    • EngineType: V8 ( 6.8 L / 412 )

    1978-1979 DODGE DIPLOMAT

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

    1992 CHRYSLER LEBARON

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

    1982 DODGE D150 PICKUP

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

    1967 PONTIAC TEMPEST

    • EngineType: ALL
    • SubModel: CUSTOM

    1968-1969 AMERICAN MOTORS AMBASSADOR

    • CC: 6391
    • Liter: 6.4
    • SubModel: SST
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1975-1976 PLYMOUTH GRAN FURY

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

    1989-1992 DODGE W250 PICKUP

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

    1980 DODGE D300 PICKUP

    • EngineType: ALL
    • SubModel: BASE

    1988 PLYMOUTH GRAND VOYAGER

    • EngineType: ALL
    • SubModel: SE

    1973 JEEP WAGONEER

    • Liter: 4.2
    • SubModel: CUSTOM
    • CUI: 258
    • EngineType: L6 ( 4.2 L / 258 )

    1971-1973 PLYMOUTH CUDA

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

    1969 DODGE MONACO

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

    1972-1973 DODGE DART

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

    1969-1970 DODGE CHARGER

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

    1968 DODGE W300 PICKUP

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

    1981-1985 PLYMOUTH RELIANT

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

    1986 OLDSMOBILE FIRENZA

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

    1968-1969 CADILLAC CALAIS

    • EngineType: ALL
    • SubModel: ALL

    1968 DODGE CORONET

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

    1989 PLYMOUTH ACCLAIM

    • EngineType: ALL
    • SubModel: BASE

    1969-1970 INTERNATIONAL SCOUT

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

    1970 BENTLEY T1 SERIES

    • CC: 6230
    • Liter: 6.2
    • SubModel: JAMES YOUNG
    • EngineType: V8 ( 6.2 L / 6230 CC )

    1971 DODGE W300 PICKUP

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

    1966 PLYMOUTH VALIANT

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