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NGK Spark Plugs XR45IX

Iridium IX Spark Plug 14mm x 3/8" Reach



NGK Spark Plugs XR45IX

Part Number: 739-XR45IX

Iridium IX Spark Plug
  • 14mm x 3/8" Reach
  • 13/16" Hex
  • Projected
  • Gasket seat
  • .059" Gap
  • Sold Individually
  • $5.99
    $5.32
    ON SALE - $0.67 OFF
    Ships
    NGK Spark Plugs XR45IX Iridium IX Spark Plug 14mm x 3/8" Reach $5.32

    Specifications:

    Manufacturer's Part Number:
    XR45IX

    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 NGK Spark Plugs XR45IX fit your vehicle?

    Narrow Results

    1976 OLDSMOBILE CUTLASS TIARA

    • EngineType: ALL
    • SubModel: ALL

    1982-1984 OLDSMOBILE CUTLASS SUPREME

    • Liter: 5.0
    • EngineType: V8
    • SubModel: BROUGHAM

    1980-1982 OLDSMOBILE CUTLASS CRUISER

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

    1985 OLDSMOBILE CUTLASS SALON

    • EngineType: ALL
    • SubModel: 442

    1977 PONTIAC LEMANS

    • Liter: 6.6
    • SubModel: SPORT
    • CUI: 403
    • EngineType: V8

    1976 PONTIAC SUNBIRD

    • EngineType: V6
    • SubModel: BASE

    1979-1980 CADILLAC ELDORADO

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

    1980-1984 OLDSMOBILE 98

    • Liter: 5.0
    • EngineType: V8
    • SubModel: REGENCY

    1977 BUICK SKYLARK

    • Liter: 5.7
    • EngineType: V8
    • SubModel: SR

    1977 OLDSMOBILE CUTLASS

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

    1976 BUICK RIVIERA

    • EngineType: ALL
    • SubModel: SR

    1982 OLDSMOBILE CUTLASS SUPREME

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

    1982 BUICK LESABRE

    • Liter: 5.0
    • EngineType: V8
    • SubModel: LIMITED EDITION F/E

    1976 BUICK RIVIERA

    • EngineType: ALL
    • SubModel: SPORT

    1977 BUICK ELECTRA

    • EngineType: ALL
    • SubModel: 225

    1977 PONTIAC GRAND PRIX

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

    1981 PONTIAC CATALINA

    • Liter: 5.0
    • EngineType: V8
    • SubModel: SAFARI

    1984 OLDSMOBILE DELTA 88

    • Liter: 5.0
    • EngineType: V8
    • SubModel: ROYALE BROUGHAM LS

    1980 OLDSMOBILE CUTLASS SALON

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

    1978 OLDSMOBILE CUTLASS SALON

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

    1975-1977 OLDSMOBILE CUTLASS SUPREME

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

    1978 OLDSMOBILE CUTLASS SUPREME

    • Liter: 4.3
    • EngineType: V8
    • SubModel: BROUGHAM

    1977 PONTIAC GRAND PRIX

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

    1977 OLDSMOBILE OMEGA

    • Liter: 5.7
    • EngineType: V8
    • SubModel: SX

    1977 OLDSMOBILE CUTLASS

    • Liter: 5.7
    • EngineType: V8
    • SubModel: COLONNADE

    1977 OLDSMOBILE CUTLASS

    • Liter: 5.7
    • SubModel: 442
    • CUI: 350
    • EngineType: V8

    1976 BUICK LESABRE

    • Liter: 7.5
    • SubModel: CUSTOM
    • CUI: 455
    • EngineType: V8

    1977-1980 PONTIAC CATALINA

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

    1976-1979 BUICK ESTATE WAGON

    • EngineType: ALL
    • SubModel: ALL

    1975 OLDSMOBILE OMEGA

    • Liter: 4.3
    • SubModel: SALON
    • CUI: 260
    • EngineType: V8

    1980-1984 OLDSMOBILE DELTA 88

    • Liter: 5.0
    • EngineType: V8
    • SubModel: ROYALE

    1982-1984 OLDSMOBILE CUTLASS SUPREME

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

    1980-1981 OLDSMOBILE CUTLASS

    • Liter: 4.3
    • SubModel: BROUGHAM
    • CUI: 260
    • EngineType: V8

    1977 OLDSMOBILE DELTA 88

    • EngineType: V8
    • SubModel: BASE

    1978-1980 OLDSMOBILE DELTA 88

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

    1977 PONTIAC GRAND PRIX

    • Liter: 6.6
    • SubModel: BASE
    • CUI: 403
    • EngineType: V8

    1977 PONTIAC GRAND PRIX

    • Liter: 6.6
    • SubModel: LJ
    • CUI: 403
    • EngineType: V8

    1976 OLDSMOBILE STARFIRE

    • EngineType: V6
    • SubModel: SX

    1977 PONTIAC LEMANS

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

    1977 PONTIAC LEMANS

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

    1976 OLDSMOBILE OMEGA

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

    1978-1980 OLDSMOBILE 98

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

    1976 PONTIAC LEMANS

    • Liter: 4.3
    • SubModel: SPORT
    • CUI: 260
    • EngineType: V8

    1977 OLDSMOBILE TORONADO

    • Liter: 6.6
    • EngineType: V8
    • SubModel: XSR

    1979 OLDSMOBILE CUTLASS SALON

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

    1976-1977 OLDSMOBILE CUSTOM CRUISER

    • EngineType: ALL
    • SubModel: ALL

    1975-1976 BUICK CENTURY

    • EngineType: V6
    • SubModel: CUSTOM

    1975 PONTIAC VENTURA

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

    1978-1979 OLDSMOBILE CUSTOM CRUISER

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

    1984 OLDSMOBILE CUTLASS CALAIS

    • EngineType: ALL
    • SubModel: HURST

    1980 OLDSMOBILE CUTLASS

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

    1983 OLDSMOBILE CUTLASS CALAIS

    • Liter: 5.0
    • EngineType: V8
    • SubModel: HURST

    1977 PONTIAC GRAND LEMANS

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

    1977 PONTIAC GRAND PRIX

    • Liter: 6.6
    • SubModel: SJ
    • CUI: 403
    • EngineType: V8

    1977 PONTIAC LEMANS

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

    1977 OLDSMOBILE CUTLASS SUPREME

    • Liter: 4.3
    • SubModel: BROUGHAM
    • CUI: 260
    • EngineType: V8

    1975-1976 OLDSMOBILE OMEGA

    • Liter: 4.3
    • SubModel: BASE
    • CUI: 260
    • EngineType: V8

    1975 PONTIAC VENTURA

    • Liter: 4.3
    • EngineType: V8
    • SubModel: SJ

    1980-1981 OLDSMOBILE TORONADO

    • Liter: 5.0
    • EngineType: V8
    • SubModel: XSC

    1976-1977 OLDSMOBILE CUTLASS SUPREME

    • EngineType: V8
    • SubModel: COLONNADE

    1979-1980 CADILLAC ELDORADO

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

    1976 OLDSMOBILE CUTLASS

    • Liter: 5.7
    • EngineType: V8
    • SubModel: S

    1977 BUICK SKYLARK

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

    1981 PONTIAC PARISIENNE

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

    1977-1979 PONTIAC BONNEVILLE

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

    1977-1979 PONTIAC CATALINA

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

    1977 BUICK LESABRE

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

    1979 OLDSMOBILE CUTLASS SUPREME

    • Liter: 4.3
    • SubModel: BASE
    • CUI: 260
    • EngineType: V8

    1980 OLDSMOBILE CUTLASS SUPREME

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

    1977 PONTIAC PHOENIX

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

    1977 OLDSMOBILE CUTLASS

    • Liter: 6.6
    • SubModel: COLONNADE
    • CUI: 403
    • EngineType: V8

    1981-1984 BUICK LESABRE

    • Liter: 5.0
    • EngineType: V8
    • SubModel: LIMITED

    1984 BUICK ELECTRA

    • EngineType: V8
    • SubModel: PARK AVENUE

    1981-1983 BUICK ESTATE WAGON

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

    1977-1979 PONTIAC FIREBIRD

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

    1981 BUICK LESABRE

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

    1977-1980 BUICK LESABRE

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

    1975 OLDSMOBILE CUTLASS SUPREME

    • Liter: 7.5
    • SubModel: CRUISER
    • CUI: 455
    • EngineType: V8

    1977-1980 PONTIAC BONNEVILLE

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

    1975 OLDSMOBILE DELTA 88

    • Liter: 5.7
    • EngineType: V8
    • SubModel: ROYALE

    1977 OLDSMOBILE TORONADO

    • Liter: 6.6
    • EngineType: V8
    • SubModel: XS

    1978-1980 OLDSMOBILE DELTA 88

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

    1977-1978 BUICK LESABRE

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

    1977 OLDSMOBILE OMEGA

    • Liter: 4.3
    • SubModel: DELUXE
    • CUI: 260
    • EngineType: V8

    1981 PONTIAC BONNEVILLE

    • Liter: 5.0
    • EngineType: V8
    • SubModel: BROUGHAM

    1975 OLDSMOBILE 98

    • Liter: 7.5
    • EngineType: V8
    • SubModel: LUXURY

    1979 OLDSMOBILE CUTLASS SALON

    • Liter: 4.3
    • SubModel: BASE
    • CUI: 260
    • EngineType: V8

    1981 BUICK LESABRE

    • Liter: 5.0
    • EngineType: V8
    • SubModel: SPORT

    1979 OLDSMOBILE CUTLASS SALON

    • Liter: 4.3
    • SubModel: BROUGHAM
    • CUI: 260
    • EngineType: V8

    1978-1979 OLDSMOBILE CUTLASS

    • Liter: 4.3
    • EngineType: V8
    • SubModel: VISTA CRUISER

    1977 OLDSMOBILE OMEGA

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

    1985 OLDSMOBILE CUTLASS SALON

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

    1975 OLDSMOBILE STARFIRE

    • EngineType: ALL
    • SubModel: ALL

    1975-1976 BUICK SKYLARK

    • Liter: 3.8
    • SubModel: SR
    • CUI: 231
    • EngineType: V6

    1978 BUICK ELECTRA

    • Liter: 5.7
    • EngineType: V8
    • SubModel: 225

    1978-1979 PONTIAC BONNEVILLE

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

    1979 OLDSMOBILE CUTLASS SALON

    • EngineType: ALL
    • SubModel: HURST

    1979 OLDSMOBILE CUTLASS CALAIS

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

    1977 PONTIAC LEMANS

    • EngineType: V8
    • SubModel: SPORT COUPE

    1975-1977 OLDSMOBILE CUTLASS SUPREME

    • Liter: 4.3
    • SubModel: BASE
    • CUI: 260
    • EngineType: V8
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