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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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    1970-1971 PLYMOUTH FURY

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

    1988-1989 DODGE D100 PICKUP

    • EngineType: ALL
    • SubModel: ALL

    1969 GMC C25/C2500 PICKUP

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

    1977-1978 DODGE W300 PICKUP

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

    1980-1982 JEEP WAGONEER

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

    1992-1993 DODGE DAKOTA

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

    1974 PLYMOUTH DUSTER

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

    1965-1967 JEEP GLADIATOR

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

    1973 JEEP DJ5C

    • EngineType: ALL
    • SubModel: ALL

    1968 PLYMOUTH FURY III

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

    1972-1974 PLYMOUTH VALIANT

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

    1972-1973 DODGE DART

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

    1989 DODGE SPIRIT

    • EngineType: ALL
    • SubModel: LE

    1971 AMERICAN MOTORS HORNET

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

    1994-1995 DODGE SPIRIT

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

    1981-1982 DODGE D350 PICKUP

    • EngineType: ALL
    • SubModel: BASE

    1968-1969 AMERICAN MOTORS JAVELIN

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

    1969 JEEP J-2700

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

    1966-1976 ROLLS-ROYCE SILVER SHADOW

    • EngineType: ALL
    • SubModel: ALL

    1981-1985 DODGE ARIES

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

    1967 GMC G15/G1500 VAN

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

    1978-1981 CHRYSLER TOWN & COUNTRY

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

    1968 JEEP J-3600

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

    1969 CHEVROLET C10 PICKUP

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

    1964-1966 CHEVROLET CHEVY II

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

    1965-1967 AMERICAN MOTORS AMBASSADOR

    • EngineType: ALL
    • SubModel: 990

    1968-1969 AMERICAN MOTORS AMBASSADOR

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

    1991 PLYMOUTH SUNDANCE

    • EngineType: ALL
    • SubModel: RS

    1990-1991 CHRYSLER DAYTONA

    • EngineType: ALL
    • SubModel: SHELBY

    1984-1986 OLDSMOBILE FIRENZA

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

    1981-1984 DODGE ARIES

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

    1989-1993 DODGE SPIRIT

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

    1974-1980 PLYMOUTH TRAILDUSTER

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

    1967 GMC P35/P3500 VAN

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

    1991 PONTIAC SUNBIRD

    • EngineType: ALL
    • SubModel: VALUE LEADER

    1974 JEEP DJ5C

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

    1964-1965 CHEVROLET K10 PICKUP

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

    1982 PLYMOUTH HORIZON

    • EngineType: ALL
    • SubModel: E-TYPE

    1967 DODGE CORONET

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

    1970-1973 PLYMOUTH FURY

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

    1978-1979 DODGE DIPLOMAT

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

    1969 CHEVROLET K30 PICKUP

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

    1974 DODGE RAMCHARGER

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

    1984-1985 JEEP GRAND WAGONEER

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

    1977-1978 DODGE D150 PICKUP

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

    1966 GMC PB25 SERIES VAN

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

    1973 JEEP J-2500

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

    1972-1973 DODGE POLARA

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

    1976-1977 DODGE ASPEN

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

    1971 DODGE POLARA

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

    1972 AMERICAN MOTORS JAVELIN

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

    1978 CHRYSLER LEBARON

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

    1969 DODGE DART

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

    1964-1967 CHEVROLET MALIBU

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

    1989-1991 DODGE D250 PICKUP

    • Liter: 5.2
    • SubModel: BASE
    • 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 )

    1968-1969 CHEVROLET CAMARO

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

    1989 PONTIAC LEMANS

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

    1982 PLYMOUTH HORIZON

    • EngineType: ALL
    • SubModel: MISER

    1972-1973 DODGE DART

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

    1971-1977 AMERICAN MOTORS MATADOR

    • EngineType: ALL
    • SubModel: ALL

    1983-1984 CHRYSLER NEW YORKER

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

    1984-1989 CHRYSLER DAYTONA

    • EngineType: ALL
    • SubModel: ALL

    1972 AMERICAN MOTORS JAVELIN

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

    1979 PLYMOUTH PB200 VAN

    • EngineType: ALL
    • SubModel: VOYAGER

    1970-1974 PLYMOUTH VALIANT

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

    1966-1967 AMERICAN MOTORS AMBASSADOR

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

    1972-1974 DODGE D100 PICKUP

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

    1970-1971 DODGE CHARGER

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

    1969 PLYMOUTH ROAD RUNNER

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

    1967 CHEVROLET C10 PICKUP

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

    1980 DODGE MIRADA

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

    1978-1981 JEEP CJ7

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

    1968 CHEVROLET C20 SUBURBAN

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

    1977 AMERICAN MOTORS GREMLIN

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

    1975-1976 DODGE D200 PICKUP

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

    1977 DODGE DIPLOMAT

    • EngineType: ALL
    • SubModel: ALL

    1968-1969 CHEVROLET P10 VAN

    • EngineType: ALL
    • SubModel: ALL

    1994 CHRYSLER LEBARON

    • EngineType: ALL
    • SubModel: BASE

    1972-1978 DODGE B300 VAN

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

    1964-1966 DODGE A100 VAN

    • EngineType: ALL
    • SubModel: ALL

    1968 DODGE DART

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

    1968 DODGE DART

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

    1968 DODGE DART

    • CC: 4473
    • Liter: 4.5
    • SubModel: 270
    • CUI: 273
    • EngineType: V8 ( 4.5 L / 273 )

    1976 MERCURY BOBCAT

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

    1982 OLDSMOBILE FIRENZA

    • EngineType: ALL
    • SubModel: LX

    1983 DODGE DIPLOMAT

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

    1975 DODGE B300 VAN

    • EngineType: ALL
    • SubModel: SPORTSMAN

    1967 CHEVROLET CAMARO

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

    1974-1980 DODGE W200 PICKUP

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

    1969 OLDSMOBILE F85

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

    1968 PLYMOUTH FURY

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

    1970-1974 CADILLAC DEVILLE

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

    1964 AMERICAN MOTORS AMERICAN

    • EngineType: ALL
    • SubModel: 440H

    1975 DODGE CORONET

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

    1971 DODGE POLARA

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

    1969-1970 DODGE W200 PICKUP

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

    1974 DODGE B100 VAN

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

    1960-1961 DODGE DART

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

    1992 CHRYSLER LEBARON

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