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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.

    JEGS Easy Kits are designed by JEGS Professionals to help you get all the performance parts you need.

    Does NGK Spark Plugs GR4 fit your vehicle?

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    1972 DODGE DART

    • EngineType: ALL
    • SubModel: DEMON 340

    1966 CHEVROLET P10 SERIES

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

    1986-1987 DODGE D250 PICKUP

    • EngineType: ALL
    • SubModel: ADVENTURER

    1975 PLYMOUTH ROAD RUNNER

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

    1964-1965 PONTIAC LEMANS

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

    1972-1973 DODGE CORONET

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

    1984-1990 DODGE D150 PICKUP

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

    1968 PLYMOUTH BARRACUDA

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

    1979-1980 PLYMOUTH PB300 VAN

    • EngineType: ALL
    • SubModel: VOYAGER

    1974 PLYMOUTH SATELLITE

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

    1976 MERCURY BOBCAT

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

    1986-1987 CHRYSLER NEW YORKER

    • EngineType: ALL
    • SubModel: ALL

    1976 DODGE DART

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

    1987-1989 PLYMOUTH HORIZON

    • EngineType: ALL
    • SubModel: AMERICA

    1971 PLYMOUTH SATELLITE

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

    1969-1971 PLYMOUTH FURY

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

    1972-1973 MERCURY CAPRI

    • CC: 2551
    • Liter: 2.6
    • SubModel: BASE
    • CUI: 156
    • EngineType: V6 ( 2.6 L / 156 )

    1979 DODGE D100 PICKUP

    • EngineType: ALL
    • SubModel: ESTACAS

    1968 PLYMOUTH FURY I

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

    1983-1984 CHRYSLER E CLASS

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

    1969 CHEVROLET CHEVELLE

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

    1990 CHRYSLER LEBARON

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

    1971-1972 DODGE CHARGER

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

    1963-1968 DODGE DART

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

    1971 DODGE B200 VAN

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

    1974 DODGE B100 VAN

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

    1971 DODGE DART

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

    1969 AMERICAN MOTORS RAMBLER

    • CC: 3261
    • Liter: 3.3
    • SubModel: 440
    • CUI: 199
    • EngineType: L6 ( 3.3 L / 199 )

    1978-1979 AMERICAN MOTORS AMX

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

    1990-1995 DODGE CARAVAN

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

    1982 DODGE OMNI

    • EngineType: ALL
    • SubModel: 024 MISER

    1972 AMERICAN MOTORS JAVELIN

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

    1969 INTERNATIONAL M800 NAVY

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

    1975-1976 DODGE MONACO

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

    1983-1984 OLDSMOBILE FIRENZA

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

    1970 CADILLAC FLEETWOOD

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

    1967 DODGE CHARGER

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

    1989 DODGE LANCER

    • EngineType: ALL
    • SubModel: ALL

    1971 DODGE POLARA

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

    1975 PLYMOUTH DUSTER

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

    1973 JEEP J-2500

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

    1969-1970 DODGE POLARA

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

    1972 AMERICAN MOTORS JAVELIN

    • CC: 6572
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 401
    • EngineType: V8 ( 6.6 L / 401 )

    1970 AMERICAN MOTORS REBEL

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

    1969-1973 DODGE DART

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

    1989-1993 DODGE SPIRIT

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

    1981-1982 CHEVROLET LUV PICKUP

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

    1969-1970 DODGE DART

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

    1971 DODGE DART

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

    1969 GMC K15/K1500 SUBURBAN

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

    1975 DODGE ROYAL MONACO

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

    1977 DODGE ROYAL MONACO

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

    1968-1969 AMERICAN MOTORS JAVELIN

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

    1976-1977 JEEP CJ7

    • EngineType: ALL
    • SubModel: ALL

    1968-1969 CADILLAC FLEETWOOD

    • EngineType: ALL
    • SubModel: ALL

    1973 PLYMOUTH FURY I

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

    1972-1973 PLYMOUTH BARRACUDA

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

    1984-1985 PLYMOUTH HORIZON

    • EngineType: ALL
    • SubModel: TURISMO 2.2

    1968 PLYMOUTH FURY

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

    1964-1965 AMERICAN MOTORS CLASSIC

    • CC: 3802
    • Liter: 3.8
    • SubModel: 770
    • CUI: 232
    • EngineType: L6 ( 3.8 L / 232 )

    1968 AMERICAN MOTORS AMERICAN

    • CC: 4753
    • Liter: 4.7
    • SubModel: 440
    • CUI: 290
    • EngineType: V8 ( 4.7 L / 290 )

    1977-1981 DODGE D150 PICKUP

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

    1990 DODGE D150 PICKUP

    • EngineType: ALL
    • SubModel: S

    1992-1994 PLYMOUTH SUNDANCE

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

    1967 PONTIAC LEMANS

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

    1988-1989 DODGE B150 VAN

    • EngineType: ALL
    • SubModel: ALL

    1975-1978 PLYMOUTH FURY

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

    1978-1981 JEEP CJ5

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

    1974 DODGE DART

    • EngineType: ALL
    • SubModel: SPECIAL EDITION

    1968 PLYMOUTH VALIANT

    • CC: 4473
    • Liter: 4.5
    • SubModel: 100
    • CUI: 273
    • EngineType: V8 ( 4.5 L / 273 )

    1973 DODGE B200 VAN

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

    1990-1991 PLYMOUTH ACCLAIM

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

    1980 PLYMOUTH GRAN FURY

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

    1970 BENTLEY T1 SERIES

    • CC: 6750
    • Liter: 6.8
    • SubModel: H.J. MULLINER
    • CUI: 412
    • EngineType: V8 ( 6.8 L / 412 )

    1972-1973 DODGE DART

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

    1969 AMERICAN MOTORS RAMBLER

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

    1968 DODGE P100 VAN

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

    1973 DODGE CORONET

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

    1974 JEEP CHEROKEE (SJ)

    • Liter: 6.6
    • SubModel: BASE
    • CUI: 401
    • EngineType: V8 ( 6.6 L / 401 )

    1975-1978 DODGE MONACO

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

    1974-1980 PLYMOUTH TRAILDUSTER

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

    1968-1969 BUICK SKYLARK

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

    1972 AMERICAN MOTORS JAVELIN

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

    1969 GMC C35/C3500 PICKUP

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

    1967 GMC G25/G2500 VAN

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

    1975-1979 DODGE CB300 VAN

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

    1968 PLYMOUTH ROAD RUNNER

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

    1984 DODGE CHARGER

    • EngineType: ALL
    • SubModel: ALL

    1970-1971 DODGE CHARGER

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

    1969 DODGE DART

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

    1964-1965 CHEVROLET IMPALA

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

    1968 DODGE CHARGER

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

    1981-1982 CHEVROLET LUV PICKUP

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

    1966 DODGE CORONET

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

    1974 PLYMOUTH PB300 VAN

    • EngineType: ALL
    • SubModel: VOYAGER EX

    1967 CHEVROLET CHEVELLE

    • CC: 4097
    • Liter: 4.1
    • SubModel: 300
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1968-1969 CHEVROLET G20 VAN

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

    1983 JEEP CHEROKEE (SJ)

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

    1970-1973 PLYMOUTH FURY

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

    1977-1978 DODGE W300 PICKUP

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