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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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    1965 AMERICAN MOTORS AMBASSADOR

    • CC: 5358
    • Liter: 5.3
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.3 L / 327 )

    1971-1972 DODGE CHARGER

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

    1966-1976 ROLLS-ROYCE SILVER SHADOW

    • EngineType: ALL
    • SubModel: ALL

    1968 PLYMOUTH FURY

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

    1961-1967 DODGE D200 PICKUP

    • EngineType: ALL
    • SubModel: ALL

    1967-1974 DODGE D300 PICKUP

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

    1968 PLYMOUTH BARRACUDA

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

    1976-1977 DODGE ASPEN

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

    1968 CHEVROLET CHEVELLE

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

    1976 MERCURY BOBCAT

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

    1971-1974 PLYMOUTH FURY I

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

    1968 PLYMOUTH VALIANT

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

    1968-1972 DODGE P300 VAN

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

    1968 CHEVROLET C20 SUBURBAN

    • 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 )

    1975-1976 DODGE W300 PICKUP

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

    1969 AMERICAN MOTORS RAMBLER

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

    1968 PLYMOUTH FURY II

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

    1974 DODGE MONACO

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

    1972-1974 DODGE W100 PICKUP

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

    1971-1974 PLYMOUTH SATELLITE

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

    1971-1974 DODGE D200 PICKUP

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

    1985-1986 DODGE CHARGER

    • EngineType: ALL
    • SubModel: 2.2

    1978-1981 CHRYSLER TOWN & COUNTRY

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

    1976-1977 JEEP CJ7

    • EngineType: ALL
    • SubModel: ALL

    1983-1985 CHRYSLER LEBARON

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

    1982-1984 DODGE RAMPAGE

    • EngineType: ALL
    • SubModel: ALL

    1991-1992 DODGE DAYTONA

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

    1972 DODGE CORONET

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

    1974 PLYMOUTH SATELLITE

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

    1969 PONTIAC TEMPEST

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

    1975-1976 DODGE W300 PICKUP

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

    1971 DODGE DART

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

    1968-1969 AMERICAN MOTORS JAVELIN

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

    1974 PLYMOUTH VALIANT

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

    1969 PLYMOUTH VALIANT

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

    1968 PLYMOUTH BELVEDERE

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

    1963-1966 GMC SUBURBAN

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

    1973 PLYMOUTH FURY

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

    1982 OLDSMOBILE FIRENZA

    • EngineType: ALL
    • SubModel: S

    1988 PLYMOUTH HORIZON

    • EngineType: ALL
    • SubModel: TURISMO

    1978-1981 JEEP CJ7

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

    1986 DODGE RAMCHARGER

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

    1963-1965 CHEVROLET IMPALA

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

    1969 DODGE DART

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

    1961 DODGE LANCER

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

    1971 DODGE B200 VAN

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

    1965-1966 CHEVROLET CHEVELLE

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

    1978-1979 DODGE DIPLOMAT

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

    1968 PLYMOUTH VALIANT

    • CC: 2786
    • Liter: 2.8
    • SubModel: 100
    • CUI: 170
    • EngineType: L6 ( 2.8 L / 170 )

    1972-1973 DODGE DART

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

    1978-1979 AMERICAN MOTORS AMX

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

    1965-1966 AMERICAN MOTORS MARLIN

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

    1983-1988 DODGE W350 PICKUP

    • EngineType: ALL
    • SubModel: ALL

    1975 PLYMOUTH PB300 VAN

    • EngineType: ALL
    • SubModel: VOYAGER

    1975-1976 DODGE CORONET

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

    1972 DODGE DART

    • EngineType: ALL
    • SubModel: DEMON 340

    1975 PLYMOUTH VALIANT

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

    1973 JEEP WAGONEER

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

    1979-1981 CHRYSLER LEBARON

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

    1981-1982 DODGE D350 PICKUP

    • EngineType: ALL
    • SubModel: BASE

    1965-1966 DODGE P100 VAN

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

    1968-1969 PONTIAC TEMPEST

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

    1968 PLYMOUTH FURY

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

    1968 DODGE CORONET

    • CC: 5212
    • Liter: 5.2
    • SubModel: 500
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1972-1973 PLYMOUTH BARRACUDA

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

    1981-1987 DODGE D250 PICKUP

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

    1963 DODGE DART

    • EngineType: ALL
    • SubModel: GT

    1971 AMERICAN MOTORS HORNET

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

    1970 BENTLEY T1 SERIES

    • CC: 6230
    • Liter: 6.2
    • SubModel: PARK WARD
    • CUI: 380
    • EngineType: V8 ( 6.2 L / 380 )

    1969-1973 DODGE DART

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

    1968 PLYMOUTH BELVEDERE

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

    1971 DODGE B200 VAN

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

    1968-1969 CHEVROLET EL CAMINO

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

    1975-1979 DODGE D300 PICKUP

    • EngineType: ALL
    • SubModel: RD

    1990-1991 DODGE DAYTONA

    • EngineType: ALL
    • SubModel: SHELBY

    1985-1987 DODGE MINI RAM

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

    1970-1974 CADILLAC FLEETWOOD

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

    1992-1994 DODGE SHADOW

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

    1966 CHEVROLET P10 SERIES

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

    1969 GMC K15/K1500 SUBURBAN

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

    1971 DODGE CORONET

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

    1988 JEEP J10

    • EngineType: ALL
    • SubModel: ALL

    1970 BENTLEY T1 SERIES

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

    1967-1970 DODGE CORONET

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

    1972-1973 PLYMOUTH DUSTER

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

    1971 DODGE DART

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

    1967-1968 AMERICAN MOTORS REBEL

    • EngineType: ALL
    • SubModel: SST

    1987-1990 PLYMOUTH SUNDANCE

    • EngineType: ALL
    • SubModel: ALL

    1987 DODGE W100 PICKUP

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

    1979 AMERICAN MOTORS PACER

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

    1971 DODGE W300 PICKUP

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

    1974 DODGE RAMCHARGER

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

    1989 DODGE SPIRIT

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

    1965-1967 AMERICAN MOTORS AMERICAN

    • EngineType: ALL
    • SubModel: 440

    1967 CHEVROLET K20 PICKUP

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

    1975 PLYMOUTH FURY

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

    1986-1989 DODGE ARIES

    • EngineType: ALL
    • SubModel: ALL

    1974 PLYMOUTH FURY

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

    1988 CHRYSLER NEW YORKER

    • EngineType: ALL
    • SubModel: TURBO
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