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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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    1972 CHRYSLER NEW YORKER

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

    1968-1971 CHRYSLER NEWPORT

    • CC: 6286
    • Liter: 6.3
    • SubModel: CUSTOM
    • CUI: 383
    • EngineType: V8

    1970 DODGE POLARA

    • Liter: 6.3
    • EngineType: V8
    • SubModel: CUSTOM

    1966-1967 BUICK SPECIAL

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

    1968 CHEVROLET CHEVELLE

    • Liter: 5.0
    • EngineType: V8
    • SubModel: 300

    1967 CHRYSLER TOWN & COUNTRY

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

    1963 PONTIAC TEMPEST

    • CC: 5343
    • Liter: 5.3
    • SubModel: BASE
    • CUI: 326
    • EngineType: V8

    1962-1965 DODGE POLARA

    • CC: 6286
    • Liter: 6.3
    • SubModel: BASE
    • CUI: 383
    • EngineType: V8

    1958-1959 PLYMOUTH CUSTOM

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

    1955 PLYMOUTH SAVOY

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

    1962-1965 PLYMOUTH FURY

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

    1968-1971 OLDSMOBILE VISTA CRUISER

    • CC: 5737
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8

    1976 DODGE CHARGER

    • Liter: 6.6
    • SubModel: SPORT
    • CUI: 400
    • EngineType: V8

    1965-1967 OLDSMOBILE F85

    • Liter: 5.4
    • EngineType: V8
    • SubModel: BASE

    1967-1968 DODGE CHARGER

    • Liter: 7.2
    • SubModel: BASE
    • CUI: 440
    • EngineType: V8

    1970 PONTIAC CATALINA

    • EngineType: ALL
    • SubModel: ALL

    1970-1971 OLDSMOBILE VISTA CRUISER

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

    1974 DODGE B200 VAN

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

    1971 DODGE CHARGER

    • Liter: 6.3
    • EngineType: V8
    • SubModel: SUPER BEE

    1965-1966 DODGE MONACO

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

    1968-1971 PONTIAC FIREBIRD

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

    1963-1965 PLYMOUTH BELVEDERE

    • Liter: 5.9
    • SubModel: BASE
    • CUI: 361
    • EngineType: V8

    1957 PLYMOUTH SUBURBAN

    • CC: 4933
    • Liter: 4.9
    • SubModel: BASE
    • CUI: 301
    • EngineType: V8

    1966 JEEP FC150

    • EngineType: V6
    • SubModel: BASE

    1967 DODGE CORONET

    • Liter: 6.3
    • EngineType: V8
    • SubModel: R/T

    1960-1961 PLYMOUTH CUSTOM

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

    1955 PLYMOUTH PLAZA

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

    1956 PLYMOUTH SUBURBAN

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

    1970 PONTIAC EXECUTIVE

    • Liter: 6.6
    • EngineType: V8
    • SubModel: SAFARI

    1970-1971 PONTIAC GTO

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

    1955-1957 CHEVROLET BEL AIR

    • EngineType: ALL
    • SubModel: NOMAD

    1967 CADILLAC CALAIS

    • EngineType: ALL
    • SubModel: ALL

    1952 CADILLAC SERIES 62

    • EngineType: ALL
    • SubModel: ALL

    1971 OLDSMOBILE CUTLASS SUPREME

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

    1970 PONTIAC FIREBIRD

    • Liter: 6.6
    • EngineType: V8
    • SubModel: ESPRIT

    1972 CHRYSLER NEWPORT

    • Liter: 6.6
    • EngineType: V8
    • SubModel: ROYAL

    1967 CADILLAC FLEETWOOD

    • EngineType: ALL
    • SubModel: ALL

    1971 DODGE POLARA

    • Liter: 6.3
    • SubModel: CUSTOM
    • CUI: 383
    • EngineType: V8

    1958 PLYMOUTH SUBURBAN

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

    1968 OLDSMOBILE VISTA CRUISER

    • CC: 5733
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8

    1959-1965 CHRYSLER IMPERIAL

    • EngineType: ALL
    • SubModel: LEBARON

    1961 CHEVROLET BEL AIR

    • CC: 5704
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 348
    • EngineType: V8

    1964-1967 PONTIAC TEMPEST

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

    1951-1958 BUICK SUPER

    • EngineType: ALL
    • SubModel: ALL

    1965-1967 DODGE CORONET

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

    1961 PONTIAC TEMPEST

    • Liter: 6.4
    • EngineType: V8
    • SubModel: LEMANS

    1970-1971 PONTIAC GTO

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

    1961 PONTIAC TEMPEST

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

    1962-1969 CHEVROLET BEL AIR

    • Liter: 5.4
    • EngineType: V8
    • SubModel: BASE

    1971 DODGE CORONET

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

    1957 PLYMOUTH SUBURBAN

    • Liter: 4.9
    • SubModel: BASE
    • CUI: 299
    • EngineType: V8

    1972-1974 OLDSMOBILE DELTA 88

    • EngineType: ALL
    • SubModel: ALL

    1957 PLYMOUTH SAVOY

    • CC: 4540
    • Liter: 4.5
    • SubModel: BASE
    • CUI: 277
    • EngineType: V8

    1954 DODGE CUSTOM

    • CC: 3957
    • Liter: 4.0
    • SubModel: BASE
    • CUI: 241
    • EngineType: V8

    1971 PONTIAC FIREBIRD

    • EngineType: ALL
    • SubModel: TRANS AM

    1956-1957 PLYMOUTH SUBURBAN

    • EngineType: V8
    • SubModel: SPORT

    1956-1957 PLYMOUTH SUBURBAN

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

    1959 DODGE CUSTOM

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

    1963 BUICK SPECIAL

    • EngineType: V6
    • SubModel: DELUXE

    1966 DODGE POLARA

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

    1968 PLYMOUTH SATELLITE

    • Liter: 6.3
    • SubModel: BASE
    • CUI: 383
    • EngineType: V8

    1965 BUICK GRAN SPORT

    • CC: 6555
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8

    1966-1967 JEEP JEEPSTER

    • CC: 3687
    • Liter: 3.7
    • SubModel: COMMANDO
    • CUI: 225
    • EngineType: V6

    1967 DODGE W200 PICKUP

    • EngineType: V8
    • SubModel: BASE

    1967-1971 CHRYSLER NEWPORT

    • CC: 6286
    • Liter: 6.3
    • SubModel: BASE
    • CUI: 383
    • EngineType: V8

    1972-1973 DODGE POLARA

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

    1967-1971 CHRYSLER NEWPORT

    • CC: 7211
    • Liter: 7.2
    • SubModel: BASE
    • CUI: 440
    • EngineType: V8

    1969-1970 DODGE CORONET

    • Liter: 6.3
    • EngineType: V8
    • SubModel: DELUXE

    1965-1967 CHEVROLET CHEVELLE

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

    1966 BUICK SPORTWAGON

    • EngineType: ALL
    • SubModel: CUSTOM

    1965-1966 PLYMOUTH SATELLITE

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

    1968 OLDSMOBILE DELMONT 88

    • CC: 5733
    • Liter: 5.7
    • SubModel: BASE
    • EngineType: V8

    1968-1970 OLDSMOBILE DELTA 88

    • CC: 5737
    • Liter: 5.7
    • SubModel: CUSTOM
    • CUI: 350
    • EngineType: V8

    1974 OLDSMOBILE 98

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

    1966 CHRYSLER NEWPORT

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

    1971 DODGE CORONET

    • Liter: 6.3
    • EngineType: V8
    • SubModel: CRESTWOOD

    1957 PLYMOUTH SAVOY

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

    1958 PLYMOUTH BELVEDERE

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

    1968 DODGE CORONET

    • CC: 6286
    • Liter: 6.3
    • SubModel: 440
    • CUI: 383
    • EngineType: V8

    1963 DODGE 880

    • Liter: 6.8
    • EngineType: V8
    • SubModel: CUSTOM

    1960-1961 PLYMOUTH FURY

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

    1971 PONTIAC CATALINA

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

    1958 PLYMOUTH FURY

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

    1971 PONTIAC FIREBIRD

    • EngineType: ALL
    • SubModel: FORMULA

    1968 OLDSMOBILE DELMONT 88

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8

    1970-1971 OLDSMOBILE DELTA 88

    • CC: 5733
    • Liter: 5.7
    • SubModel: BASE
    • EngineType: V8

    1969 PONTIAC GRAND PRIX

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

    1965-1967 DODGE CORONET

    • Liter: 5.2
    • EngineType: V8
    • SubModel: 440

    1968 OLDSMOBILE DELTA 88

    • CC: 5733
    • Liter: 5.7
    • SubModel: CUSTOM
    • EngineType: V8

    1967-1968 DODGE CHARGER

    • Liter: 6.3
    • SubModel: BASE
    • CUI: 383
    • EngineType: V8

    1956 DODGE CUSTOM

    • Liter: 5.1
    • EngineType: V8
    • SubModel: BASE

    1975 DODGE CORONET

    • Liter: 6.6
    • SubModel: CUSTOM
    • CUI: 400
    • EngineType: V8

    1967 CHEVROLET CAMARO

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

    1965-1967 BUICK SKYLARK

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

    1971 OLDSMOBILE CUTLASS

    • CC: 7456
    • Liter: 7.5
    • SubModel: BASE
    • CUI: 455
    • EngineType: V8

    1970 DODGE CORONET

    • Liter: 7.2
    • EngineType: V8
    • SubModel: 440

    1972-1974 CHRYSLER NEWPORT

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

    1959-1967 CHEVROLET IMPALA

    • CC: 4638
    • Liter: 4.6
    • SubModel: BASE
    • CUI: 283
    • EngineType: V8

    1969-1970 JEEP DJ5A

    • EngineType: V6
    • SubModel: BASE

    1971-1974 DODGE D300 PICKUP

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