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NGK Spark Plugs XR4IX - NGK Iridium IX Spark Plugs



NGK Spark Plugs XR4IX - NGK Iridium IX Spark Plugs

JEGS Part Number: 739-XR4IX

Iridium IX Spark Plug
  • 14mm x 3/8" Reach
  • 13/16" Hex
  • Projected
  • Gasket seat
  • Sold Individually
  • $7.10
    Ships

    Specifications:

    Manufacturer's Part Number:
    XR4IX

    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?

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    1968-1969 DODGE POLARA

    • Liter: 6.3
    • EngineType: V8
    • SubModel: 500

    1960-1961 DODGE POLARA

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

    1974 DODGE B200 VAN

    • Liter: 6.6
    • EngineType: V8
    • SubModel: SPORTSMAN

    1970 PONTIAC GRAND PRIX

    • Liter: 6.6
    • EngineType: V8
    • SubModel: BASE

    1968 DODGE MONACO

    • Liter: 7.2
    • EngineType: V8
    • SubModel: 500

    1959 PLYMOUTH BELVEDERE

    • EngineType: V8
    • SubModel: BASE

    1950-1952 CADILLAC SERIES 60 FLEETWOOD

    • EngineType: ALL
    • SubModel: ALL

    1961 CHEVROLET BEL AIR

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

    1962-1971 DODGE POLARA

    • Liter: 6.3
    • EngineType: V8
    • SubModel: BASE

    1960 PLYMOUTH FLEET SPECIAL

    • EngineType: V8
    • SubModel: BASE

    1972 CHRYSLER NEW YORKER

    • Liter: 7.2
    • EngineType: V8
    • SubModel: BASE

    1953-1954 DODGE CORONET

    • Liter: 4.0
    • EngineType: V8
    • SubModel: BASE

    1968 CHEVROLET EL CAMINO

    • Liter: 5.0
    • EngineType: V8
    • SubModel: CUSTOM

    1968-1970 PONTIAC FIREBIRD

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

    1963-1964 DODGE 880

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

    1961 PONTIAC TEMPEST

    • Liter: 6.4
    • EngineType: V8
    • SubModel: SAFARI

    1971 PONTIAC FIREBIRD

    • EngineType: ALL
    • SubModel: FORMULA

    1955-1956 CHEVROLET BEL AIR

    • EngineType: V8
    • SubModel: BEAUVILLE

    1955 PLYMOUTH SAVOY

    • Liter: 4.2
    • EngineType: V8
    • SubModel: BASE

    1975-1977 DODGE ROYAL MONACO

    • Liter: 6.6
    • EngineType: V8
    • SubModel: BROUGHAM

    1967-1970 DODGE CORONET

    • Liter: 6.3
    • EngineType: V8
    • SubModel: 440

    1970 PONTIAC GTO

    • EngineType: ALL
    • SubModel: THE JUDGE

    1965 BUICK SKYLARK

    • Liter: 6.6
    • EngineType: V8
    • SubModel: BASE

    1966-1967 JEEP DISPATCHER

    • EngineType: V6
    • SubModel: BASE

    1956 PLYMOUTH FURY

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

    1957 PLYMOUTH FURY

    • Liter: 4.9
    • EngineType: V8
    • SubModel: BASE

    1954-1955 DODGE CUSTOM

    • EngineType: ALL
    • SubModel: ALL

    1966-1973 DODGE POLARA

    • Liter: 7.2
    • EngineType: V8
    • SubModel: BASE

    1974 DODGE MONACO

    • Liter: 6.6
    • EngineType: V8
    • SubModel: BROUGHAM

    1958-1967 CHEVROLET BEL AIR

    • Liter: 4.6
    • EngineType: V8
    • SubModel: BASE

    1974 OLDSMOBILE 98

    • Liter: 7.5
    • EngineType: V8
    • SubModel: REGENCY

    1966 DODGE MONACO

    • Liter: 7.2
    • EngineType: V8
    • SubModel: BASE

    1970-1973 OLDSMOBILE 98

    • EngineType: ALL
    • SubModel: ALL

    1967 DODGE W100 PICKUP

    • EngineType: V8
    • SubModel: BASE

    1971 PONTIAC FIREBIRD

    • EngineType: V8
    • SubModel: ESPRIT

    1975 OLDSMOBILE CUSTOM CRUISER

    • Liter: 7.5
    • EngineType: V8
    • SubModel: PANEL

    1962 CHRYSLER NEWPORT

    • Liter: 6.8
    • EngineType: V8
    • SubModel: BASE

    1964-1965 PONTIAC TEMPEST

    • EngineType: V8
    • SubModel: CUSTOM

    1965 BUICK WILDCAT

    • Liter: 6.6
    • EngineType: V8
    • SubModel: DELUXE

    1957-1961 CHRYSLER WINDSOR

    • EngineType: ALL
    • SubModel: ALL

    1968 CHEVROLET CHEVELLE

    • Liter: 5.4
    • EngineType: V8
    • SubModel: NOMAD

    1956 PLYMOUTH SAVOY

    • Liter: 4.4
    • EngineType: V8
    • SubModel: BASE

    1961 PONTIAC TEMPEST

    • Liter: 6.4
    • EngineType: V8
    • SubModel: BASE

    1971 PONTIAC FIREBIRD

    • EngineType: ALL
    • SubModel: TRANS AM

    1959-1960 CHRYSLER TOWN & COUNTRY

    • EngineType: ALL
    • SubModel: ALL

    1961-1962 CHEVROLET IMPALA

    • EngineType: L6
    • SubModel: BASE

    1956-1957 PLYMOUTH PLAZA

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

    1974 DODGE B200 VAN

    • Liter: 6.6
    • EngineType: V8
    • SubModel: MAXI WAGON

    1971 DODGE CORONET

    • Liter: 6.3
    • EngineType: V8
    • SubModel: BROUGHAM

    1958 PLYMOUTH SUBURBAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: SPORT

    1972-1976 DODGE CORONET

    • Liter: 6.6
    • EngineType: V8
    • SubModel: BASE

    1975-1976 DODGE CORONET

    • Liter: 6.6
    • EngineType: V8
    • SubModel: BROUGHAM

    1971 DODGE POLARA

    • Liter: 7.2
    • EngineType: V8
    • SubModel: BROUGHAM

    1963-1967 CHEVROLET CHEVY II

    • EngineType: V8
    • SubModel: BASE

    1970 CHEVROLET NOVA

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

    1961 PONTIAC VENTURA

    • Liter: 6.4
    • EngineType: V8
    • SubModel: BASE

    1968 CHEVROLET CHEVELLE

    • Liter: 5.0
    • EngineType: V8
    • SubModel: SS

    1957-1960 CHRYSLER SARATOGA

    • EngineType: ALL
    • SubModel: ALL

    1965-1967 CHEVROLET CHEVELLE

    • Liter: 4.6
    • EngineType: V8
    • SubModel: SS

    1955 PLYMOUTH SUBURBAN

    • Liter: 4.3
    • EngineType: V8
    • SubModel: BASE

    1951-1958 BUICK SUPER

    • EngineType: ALL
    • SubModel: ALL

    1967 CHEVROLET CAMARO

    • Liter: 5.3
    • EngineType: V8
    • SubModel: RS

    1959-1963 BUICK INVICTA

    • EngineType: ALL
    • SubModel: ALL

    1957 PLYMOUTH BELVEDERE

    • Liter: 4.9
    • EngineType: V8
    • SubModel: BASE

    1968-1971 DODGE D200 PICKUP

    • Liter: 6.3
    • EngineType: V8
    • SubModel: BASE

    1964 OLDSMOBILE F85

    • EngineType: V8
    • SubModel: BASE

    1966 BUICK SPORTWAGON

    • EngineType: ALL
    • SubModel: CUSTOM

    1968 OLDSMOBILE DELMONT 88

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

    1956 PLYMOUTH SUBURBAN

    • Liter: 4.4
    • EngineType: V8
    • SubModel: BASE

    1971-1974 CHRYSLER NEWPORT

    • Liter: 7.2
    • EngineType: V8
    • SubModel: CUSTOM

    1967-1971 DODGE D300 PICKUP

    • Liter: 6.3
    • EngineType: V8
    • SubModel: BASE

    1964 DODGE 440

    • Liter: 6.3
    • EngineType: V8
    • SubModel: BASE

    1956 PLYMOUTH FURY

    • Liter: 4.4
    • EngineType: V8
    • SubModel: BASE

    1971 PONTIAC BONNEVILLE

    • Liter: 7.5
    • EngineType: V8
    • SubModel: BASE

    1956-1957 PLYMOUTH SUBURBAN

    • EngineType: V8
    • SubModel: SPORT

    1971 PONTIAC GRANDVILLE

    • EngineType: ALL
    • SubModel: BASE

    1966 JEEP FC150

    • EngineType: V6
    • SubModel: BASE

    1966-1970 JEEP JEEPSTER

    • EngineType: V6
    • SubModel: BASE

    1966-1967 JEEP COMMANDO

    • EngineType: V6
    • SubModel: BASE

    1970 PONTIAC FIREBIRD

    • Liter: 6.6
    • EngineType: V8
    • SubModel: FORMULA

    1957-1958 CHRYSLER TOWN & COUNTRY

    • Liter: 5.8
    • EngineType: V8
    • SubModel: BASE

    1968 PONTIAC TEMPEST

    • Liter: 5.7
    • EngineType: V8
    • SubModel: SAFARI

    1963-1967 PONTIAC LEMANS

    • Liter: 5.3
    • EngineType: V8
    • SubModel: BASE

    1971 PONTIAC LEMANS

    • Liter: 6.6
    • EngineType: V8
    • SubModel: SPORT

    1960-1961 PLYMOUTH CUSTOM

    • Liter: 6.3
    • EngineType: V8
    • SubModel: BASE

    1970 PONTIAC EXECUTIVE

    • Liter: 6.6
    • EngineType: V8
    • SubModel: BASE

    1973-1974 CHRYSLER NEWPORT

    • Liter: 6.6
    • EngineType: V8
    • SubModel: BASE

    1955-1957 CHEVROLET BEL AIR

    • EngineType: ALL
    • SubModel: NOMAD

    1968 CHEVROLET BEL AIR

    • Liter: 5.0
    • EngineType: V8
    • SubModel: BASE

    1966-1967 CHEVROLET IMPALA

    • Liter: 4.6
    • EngineType: V8
    • SubModel: SS

    1958 PLYMOUTH BELVEDERE

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

    1963 PLYMOUTH FLEET SPECIAL

    • Liter: 7.0
    • EngineType: V8
    • SubModel: BASE

    1963 CHRYSLER NEWPORT

    • Liter: 7.0
    • EngineType: V8
    • SubModel: BASE

    1970 PONTIAC LEMANS

    • EngineType: V8
    • SubModel: SAFARI

    1963-1964 DODGE 440

    • Liter: 7.0
    • EngineType: V8
    • SubModel: BASE

    1968-1969 PONTIAC FIREBIRD

    • EngineType: ALL
    • SubModel: 350

    1964 CHEVROLET CHEVY II

    • EngineType: V8
    • SubModel: NOVA SS

    1967 CADILLAC CALAIS

    • EngineType: ALL
    • SubModel: ALL

    1968 CHEVROLET CHEVELLE

    • Liter: 5.4
    • EngineType: V8
    • SubModel: 300

    1963-1964 PLYMOUTH SAVOY

    • Liter: 6.3
    • EngineType: V8
    • SubModel: BASE