Free Shipping & Handling on Orders Over $95 - Order by 11pm EST for Same-Day Shipping!
0
My Cart
$0.00
1-800-345-4545
Shop By
Category
All Categories

Rebates
Gift Certificates
My Account
Help

NGK Spark Plugs GR4IX - NGK Iridium IX Spark Plugs



NGK Spark Plugs GR4IX - NGK Iridium IX Spark Plugs

Part Number: 739-GR4IX

Iridium IX Spark Plug
  • 14mm x 3/4" Reach
  • 13/16" Hex
  • Projected
  • Gasket seat
  • Sold Individually
  • $7.21
    $5.99
    ON SALE - $1.22 OFF
    Ships

    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 this fit your vehicle?

    Narrow Results
    Filter By
    Year
    Filter By
    Make
    Filter By
    Model
    Filter By
    SubModel
    Filter By
    EngineType
    Filter By
    CC
    Filter By
    Liter

    1973-1974 DODGE CORONET

    • Liter: 5.9
    • EngineType: V8
    • SubModel: CUSTOM

    1968 DODGE DART

    • Liter: 5.2
    • SubModel: GT
    • CUI: 318
    • EngineType: V8

    1974 PLYMOUTH SATELLITE

    • Liter: 5.9
    • EngineType: V8
    • SubModel: CUSTOM

    1963 CHEVROLET CHEVY II

    • Liter: 3.2
    • EngineType: L6
    • SubModel: BASE

    1971-1974 PLYMOUTH FURY I

    • Liter: 5.9
    • EngineType: V8
    • SubModel: BASE

    1975 DODGE DART

    • Liter: 5.9
    • SubModel: SPORT 360
    • CUI: 360
    • EngineType: V8

    1971-1972 DODGE P300 VAN

    • EngineType: V8
    • SubModel: BASE

    1980-1981 CHRYSLER LEBARON

    • EngineType: V8
    • SubModel: SPECIAL

    1988-1989 DODGE B250 VAN

    • EngineType: ALL
    • SubModel: ALL

    1968-1969 CHEVROLET EL CAMINO

    • CC: 3769
    • Liter: 3.8
    • SubModel: BASE
    • CUI: 230
    • EngineType: L6

    1971 DODGE DART

    • CC: 5212
    • Liter: 5.2
    • SubModel: SPECIAL
    • CUI: 318
    • EngineType: V8

    1969 CHEVROLET C30 PICKUP

    • CC: 4097
    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6

    1965 PLYMOUTH SATELLITE

    • CC: 6981
    • Liter: 7.0
    • SubModel: BASE
    • CUI: 426
    • EngineType: V8

    1970-1971 DODGE CHALLENGER

    • Liter: 5.6
    • EngineType: V8
    • SubModel: R/T

    1968 DODGE DART

    • Liter: 4.5
    • SubModel: BASE
    • CUI: 273
    • EngineType: V8

    1970-1971 PLYMOUTH DUSTER

    • CC: 3687
    • Liter: 3.7
    • SubModel: BASE
    • EngineType: L6

    1977 CHRYSLER LEBARON

    • EngineType: ALL
    • SubModel: ALL

    1975 DODGE B200 VAN

    • EngineType: V8
    • SubModel: SPORTSMAN

    1968-1978 DODGE D200 PICKUP

    • Liter: 5.2
    • EngineType: V8
    • SubModel: BASE

    1975-1978 PLYMOUTH FURY

    • Liter: 5.9
    • EngineType: V8
    • SubModel: SPORT SUBURBAN

    1969 DODGE DART

    • Liter: 4.5
    • EngineType: V8
    • SubModel: CUSTOM

    1987 PLYMOUTH VOYAGER

    • Liter: 2.5
    • EngineType: L4
    • SubModel: LE

    1965-1967 JEEP GLADIATOR

    • EngineType: L6
    • SubModel: BASE

    1968 GMC K35/K3500 PICKUP

    • CC: 4097
    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6

    1964 DODGE POLARA

    • Liter: 2.8
    • SubModel: BASE
    • CUI: 170
    • EngineType: L6

    1990-1991 DODGE DAYTONA

    • EngineType: ALL
    • SubModel: SHELBY

    1972-1973 MERCURY CAPRI

    • CC: 2606
    • Liter: 2.6
    • SubModel: BASE
    • EngineType: V6

    1972-1974 CHEVROLET LUV PICKUP

    • CC: 1817
    • Liter: 1.8
    • SubModel: BASE
    • CUI: 111
    • EngineType: L4

    1964 GMC 1000 SERIES PICKUP

    • Liter: 3.8
    • EngineType: L6
    • SubModel: BASE

    1968 PLYMOUTH FURY I

    • CC: 3687
    • Liter: 3.7
    • SubModel: BASE
    • CUI: 225
    • EngineType: L6

    1988 DODGE DYNASTY

    • EngineType: L4
    • SubModel: LE

    1979-1981 JEEP CJ5

    • EngineType: V8
    • SubModel: RENEGADE

    1979-1980 JEEP CJ5

    • EngineType: V8
    • SubModel: GOLDEN EAGLE

    1965-1967 DODGE DART

    • EngineType: L6
    • SubModel: GT

    1981-1983 PLYMOUTH PB250 VAN

    • EngineType: V8
    • SubModel: VOYAGER

    1981 CHRYSLER NEWPORT

    • EngineType: V8
    • SubModel: BASE

    1980 DODGE D300 PICKUP

    • EngineType: V8
    • SubModel: RD

    1967 DODGE W300 PICKUP

    • EngineType: V8
    • SubModel: BASE

    1968 OLDSMOBILE F85

    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6

    1979-1981 DODGE ST. REGIS

    • EngineType: V8
    • SubModel: BASE

    1968-1969 CHEVROLET EL CAMINO

    • CC: 4098
    • Liter: 4.1
    • SubModel: CUSTOM
    • EngineType: L6

    1971-1972 DODGE DART

    • Liter: 5.6
    • EngineType: V8
    • SubModel: DEMON

    1972 PLYMOUTH SATELLITE

    • Liter: 5.6
    • EngineType: V8
    • SubModel: SEBRING

    1977-1978 DODGE W150 PICKUP

    • Liter: 5.9
    • EngineType: V8
    • SubModel: BASE

    1993 DODGE SHADOW

    • EngineType: L4
    • SubModel: BASE

    1986-1988 CHRYSLER TOWN & COUNTRY

    • EngineType: ALL
    • SubModel: ALL

    1972 DODGE DART

    • EngineType: L6
    • SubModel: DEMON

    1972 PLYMOUTH SATELLITE

    • Liter: 5.6
    • EngineType: V8
    • SubModel: REGENT

    1969 CHEVROLET K10 PICKUP

    • CC: 3769
    • Liter: 3.8
    • SubModel: BASE
    • CUI: 230
    • EngineType: L6

    1976-1978 DODGE B200 VAN

    • Liter: 5.9
    • EngineType: V8
    • SubModel: SPORTSMAN

    1965-1967 DODGE DART

    • Liter: 4.5
    • EngineType: V8
    • SubModel: GT

    1964-1965 CHEVROLET IMPALA

    • CC: 3769
    • Liter: 3.8
    • SubModel: BASE
    • CUI: 230
    • EngineType: L6

    1968-1969 CHEVROLET BEL AIR

    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6

    1986 OLDSMOBILE FIRENZA

    • Liter: 1.8
    • EngineType: L4
    • SubModel: LC

    1971-1974 PLYMOUTH SATELLITE

    • Liter: 5.2
    • EngineType: V8
    • SubModel: BASE

    1975-1978 PLYMOUTH FURY

    • Liter: 5.9
    • EngineType: V8
    • SubModel: BASE

    1974 PLYMOUTH DUSTER

    • CC: 5899
    • Liter: 5.9
    • SubModel: BASE
    • CUI: 360
    • EngineType: V8

    1972 JEEP J-2600

    • EngineType: ALL
    • SubModel: ALL

    1963-1965 CHEVROLET C20 PICKUP

    • CC: 3769
    • Liter: 3.8
    • SubModel: BASE
    • CUI: 230
    • EngineType: L6

    1976 PLYMOUTH DUSTER

    • EngineType: V8
    • SubModel: SPORT

    1984-1987 PLYMOUTH GRAN FURY

    • EngineType: ALL
    • SubModel: SALON

    1992-1995 DODGE DAKOTA

    • EngineType: L4
    • SubModel: SPORT

    1955-1958 CHRYSLER 300

    • EngineType: ALL
    • SubModel: ALL

    1987-1990 DODGE SHADOW

    • EngineType: ALL
    • SubModel: ALL

    1978-1983 JEEP CHEROKEE (SJ)

    • EngineType: V8
    • SubModel: BASE

    1979-1980 PLYMOUTH TRAILDUSTER

    • EngineType: V8
    • SubModel: BASE

    1963-1968 PLYMOUTH BELVEDERE

    • CC: 3687
    • Liter: 3.7
    • SubModel: BASE
    • CUI: 225
    • EngineType: L6

    1969 PONTIAC TEMPEST

    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6

    1976-1978 DODGE B300 VAN

    • Liter: 5.9
    • EngineType: V8
    • SubModel: BASE

    1970 PLYMOUTH BARRACUDA

    • CC: 3687
    • Liter: 3.7
    • SubModel: BASE
    • EngineType: L6

    1965 PLYMOUTH VALIANT

    • Liter: 3.7
    • EngineType: L6
    • SubModel: SIGNET

    1971 DODGE DART

    • CC: 5212
    • Liter: 5.2
    • SubModel: BASE
    • CUI: 318
    • EngineType: V8

    1985-1986 DODGE CHARGER

    • EngineType: ALL
    • SubModel: 2.2

    1969 DODGE DART

    • Liter: 5.2
    • EngineType: V8
    • SubModel: SWINGER

    1979-1980 PLYMOUTH PB300 VAN

    • EngineType: ALL
    • SubModel: ALL

    1991-1992 PLYMOUTH SUNDANCE

    • EngineType: ALL
    • SubModel: AMERICA

    1970-1971 PLYMOUTH FURY

    • Liter: 5.2
    • EngineType: V8
    • SubModel: SPORT GT

    1964-1967 CHEVROLET G10 VAN

    • EngineType: ALL
    • SubModel: ALL

    1971 DODGE CHARGER

    • Liter: 7.2
    • EngineType: V8
    • SubModel: SUPER BEE

    1969 PLYMOUTH BARRACUDA

    • Liter: 5.6
    • EngineType: V8
    • SubModel: BASE

    1975-1977 DODGE CHARGER

    • Liter: 5.9
    • SubModel: SPECIAL EDITION
    • CUI: 360
    • EngineType: V8

    1982-1985 CHRYSLER LEBARON

    • Liter: 2.2
    • EngineType: L4
    • SubModel: BASE

    1969 PONTIAC TEMPEST

    • CC: 4098
    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6

    1968 DODGE DART

    • CC: 5212
    • Liter: 5.2
    • SubModel: GTS
    • CUI: 318
    • EngineType: V8

    1987-1990 PLYMOUTH SUNDANCE

    • EngineType: ALL
    • SubModel: ALL

    1972-1974 DODGE DART

    • Liter: 5.2
    • EngineType: V8
    • SubModel: BASE

    1975 PLYMOUTH SCAMP

    • Liter: 5.2
    • SubModel: SPECIAL
    • CUI: 318
    • EngineType: V8

    1963 CHEVROLET CHEVY II

    • Liter: 3.2
    • EngineType: L6
    • SubModel: NOVA

    1971-1974 DODGE CHARGER

    • Liter: 5.2
    • EngineType: V8
    • SubModel: SPECIAL EDITION

    1971 DODGE POLARA

    • CC: 5900
    • Liter: 5.9
    • SubModel: BASE
    • EngineType: V8

    1970-1974 AMERICAN MOTORS AMBASSADOR

    • EngineType: ALL
    • SubModel: ALL

    1992-1994 PLYMOUTH SUNDANCE

    • EngineType: L4
    • SubModel: DUSTER

    1990-1992 DODGE SPIRIT

    • EngineType: L4
    • SubModel: BASE

    1988-1990 DODGE D150 PICKUP

    • EngineType: V6
    • SubModel: BASE

    1966 CHEVROLET C20 PICKUP

    • CC: 4097
    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6

    1974-1975 PLYMOUTH ROAD RUNNER

    • Liter: 5.9
    • EngineType: V8
    • SubModel: BASE

    1980 JEEP WAGONEER

    • EngineType: V8
    • SubModel: LIMITED

    1958 PLYMOUTH CUSTOM

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    1988-1989 PLYMOUTH HORIZON

    • EngineType: ALL
    • SubModel: TURISMO

    1971-1973 PLYMOUTH FURY

    • Liter: 5.9
    • EngineType: V8
    • SubModel: SPORT SUBURBAN
    Items You Need