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NGK Spark Plugs WR5IX

Iridium IX Spark Plug 18mm x .460" Reach

NGK Spark Plugs WR5IX

739-WR5IX

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NGK Spark Plugs WR5IX Iridium IX Spark Plug 18mm x .460" Reach $5.99
Iridium IX Spark Plug
  • 18mm x .460" Reach
  • 13/16" Hex
  • Projected
  • Tapered seat
  • Sold Individually

  • Specifications:

    Manufacturer's Part Number:
    WR5IX

    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 WR5IX fit your vehicle?

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    Aspiration

    1969 MERCURY CYCLONE

    • CC: 7030
    • Liter: 7.0
    • SubModel: SPOILER
    • CUI: 429
    • EngineType: V8 ( 7.0 L / 429 )

    1970 FORD TORINO

    • Liter: 5.0
    • SubModel: BROUGHAM
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1967 MERCURY PARK LANE

    • CC: 6720
    • Liter: 6.7
    • SubModel: BASE
    • CUI: 410
    • EngineType: V8 ( 6.7 L / 410 )

    1964-1967 MERCURY CYCLONE

    • CC: 4727
    • Liter: 4.7
    • SubModel: BASE
    • CUI: 289
    • EngineType: V8 ( 4.7 L / 289 )

    1967 MERCURY MARQUIS

    • CC: 6997
    • Liter: 7.0
    • SubModel: BASE
    • CUI: 427
    • EngineType: V8 ( 7.0 L / 427 )

    1964 FORD RANCH WAGON

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

    1968 FORD MUSTANG

    • CC: 4727
    • Liter: 4.7
    • SubModel: BASE
    • CUI: 289
    • EngineType: V8 ( 4.7 L / 289 )

    1975-1976 FORD F-250

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

    1968-1969 MERCURY MONTEGO

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1961 FORD GALAXIE

    • CC: 4786
    • Liter: 4.8
    • SubModel: CLUB VICTORIA
    • CUI: 292
    • EngineType: V8 ( 4.8 L / 292 )

    1973-1974 FORD F-250

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

    1965 MERCURY CYCLONE

    • CC: 6997
    • Liter: 7.0
    • SubModel: BASE
    • CUI: 427
    • EngineType: V8 ( 7.0 L / 427 )

    1978-1981 FORD F-350

    • CC: 4917
    • Liter: 4.9
    • SubModel: RANGER LARIAT
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1962-1963 MERCURY MONTEREY

    • EngineType: ALL
    • SubModel: CUSTOM

    1969-1970 MERCURY COUGAR

    • EngineType: ALL
    • SubModel: BOSS 429

    1969 FORD TORINO

    • EngineType: ALL
    • SubModel: ALL

    1968 FORD BRONCO

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

    1970-1973 FORD MAVERICK

    • CC: 3278
    • Liter: 3.3
    • SubModel: BASE
    • CUI: 200
    • EngineType: L6 ( 3.3 L / 200 )

    1973-1974 FORD F-350

    • CC: 3933
    • Liter: 3.9
    • SubModel: BASE
    • CUI: 240
    • EngineType: L6 ( 3.9 L / 240 )

    1969-1974 FORD LTD

    • CC: 5753
    • Liter: 5.8
    • SubModel: BASE
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1958 MERCURY COMMUTER

    • CC: 5114
    • Liter: 5.1
    • SubModel: BASE
    • CUI: 312
    • EngineType: V8 ( 5.1 L / 312 )

    1967 FORD GALAXIE

    • CC: 7014
    • Liter: 7.0
    • SubModel: BASE
    • CUI: 428
    • EngineType: V8 ( 7.0 L / 428 )

    1995 DODGE RAM 3500

    • EngineType: ALL
    • SubModel: CUSTOM

    1957 MERCURY VOYAGER

    • EngineType: ALL
    • SubModel: ALL

    1958-1959 FORD CLUB

    • Liter: 4.8
    • SubModel: BASE
    • CUI: 292
    • EngineType: V8 ( 4.8 L / 292 )

    1975-1982 FORD E-150 ECONOLINE CLUB WAGON

    • CC: 4917
    • Liter: 4.9
    • SubModel: CHATEAU
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1982 FORD F-250

    • CC: 4917
    • Liter: 4.9
    • SubModel: XLS
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1971 MERCURY CYCLONE

    • CC: 5752
    • Liter: 5.8
    • SubModel: SPOILER
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1970 FORD TORINO

    • CC: 5753
    • Liter: 5.8
    • SubModel: SQUIRE
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1975-1982 FORD E-150 ECONOLINE

    • CC: 4917
    • Liter: 4.9
    • SubModel: BASE
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1967 MERCURY MARQUIS

    • CC: 6720
    • Liter: 6.7
    • SubModel: BASE
    • CUI: 410
    • EngineType: V8 ( 6.7 L / 410 )

    1982 FORD F-150

    • CC: 4917
    • Liter: 4.9
    • SubModel: XLT LARIAT
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1975-1976 FORD F-150

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

    1976 FORD F-100

    • Liter: 6.4
    • SubModel: BASE
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1975-1981 FORD E-250 ECONOLINE

    • CC: 4917
    • Liter: 4.9
    • SubModel: CUSTOM
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1956-1957 LINCOLN MARK II

    • EngineType: ALL
    • SubModel: ALL

    1971 FORD MUSTANG

    • CC: 5753
    • Liter: 5.8
    • SubModel: GRANDE
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1965-1966 FORD FAIRLANE

    • Liter: 3.3
    • SubModel: 500
    • CUI: 200
    • EngineType: L6 ( 3.3 L / 200 )

    1969-1972 FORD CUSTOM

    • CC: 5753
    • Liter: 5.8
    • SubModel: BASE
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1969-1970 MERCURY COUGAR

    • CC: 7014
    • Liter: 7.0
    • SubModel: XR-7
    • CUI: 428
    • EngineType: V8 ( 7.0 L / 428 )

    1986 FORD F-250

    • CC: 4917
    • Liter: 4.9
    • SubModel: BASE
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1961 FORD FAIRLANE

    • Liter: 3.7
    • SubModel: 500
    • CUI: 223
    • EngineType: L6 ( 3.7 L / 223 )

    1965 FORD FALCON

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

    1978-1983 FORD FAIRMONT

    • Liter: 3.3
    • SubModel: FUTURA
    • CUI: 200
    • EngineType: L6 ( 3.3 L / 200 )

    1971-1972 MERCURY MONTEGO

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

    1960 MERCURY COMMUTER

    • CC: 5114
    • Liter: 5.1
    • SubModel: BASE
    • CUI: 312
    • EngineType: V8 ( 5.1 L / 312 )

    1961 MERCURY COMMUTER

    • EngineType: ALL
    • SubModel: ALL

    1971-1974 MERCURY COMET

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

    1984-1986 FORD E-150 ECONOLINE CLUB WAGON

    • CC: 4917
    • Liter: 4.9
    • SubModel: BASE
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1965-1968 FORD LTD

    • CC: 6997
    • Liter: 7.0
    • SubModel: BASE
    • CUI: 427
    • EngineType: V8 ( 7.0 L / 427 )

    1964 MERCURY PARK LANE

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

    1973-1974 FORD GRAN TORINO

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1981-1982 FORD THUNDERBIRD

    • Liter: 3.3
    • SubModel: HERITAGE
    • CUI: 200
    • EngineType: L6 ( 3.3 L / 200 )

    1969-1970 MERCURY CYCLONE

    • CC: 5753
    • Liter: 5.8
    • SubModel: BASE
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1961-1962 MERCURY COLONY PARK

    • CC: 4786
    • Liter: 4.8
    • SubModel: BASE
    • CUI: 292
    • EngineType: V8 ( 4.8 L / 292 )

    1985-1986 FORD E-350 ECONOLINE CLUB WAGON

    • CC: 4917
    • Liter: 4.9
    • SubModel: XLT
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1982-1983 FORD F-150

    • CC: 4917
    • Liter: 4.9
    • SubModel: XL
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1964-1965 FORD RANCHERO

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

    1958-1962 FORD COUNTRY SEDAN

    • CC: 4786
    • Liter: 4.8
    • SubModel: BASE
    • CUI: 292
    • EngineType: V8 ( 4.8 L / 292 )

    1983 FORD E-100 ECONOLINE CLUB WAGON

    • CC: 4917
    • Liter: 4.9
    • SubModel: XL
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1978-1980 FORD GRANADA

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

    1976 FORD F-150

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

    1975-1976 FORD F-350

    • Liter: 6.4
    • SubModel: RANGER XLT
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1968-1972 FORD CUSTOM

    • CC: 3933
    • Liter: 3.9
    • SubModel: BASE
    • CUI: 240
    • EngineType: L6 ( 3.9 L / 240 )

    1957 MERCURY TURNPIKE CRUISER

    • EngineType: ALL
    • SubModel: ALL

    1968-1969 FORD FAIRLANE

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1977-1980 FORD E-250 ECONOLINE CLUB WAGON

    • CC: 4917
    • Liter: 4.9
    • SubModel: CHATEAU
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1975-1980 FORD GRANADA

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

    1965-1974 FORD P-350 VAN

    • CC: 4917
    • Liter: 4.9
    • SubModel: BASE
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1972 FORD CUSTOM 500

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1955-1964 FORD COUNTRY SEDAN

    • CC: 3655
    • Liter: 3.6
    • SubModel: BASE
    • CUI: 223
    • EngineType: L6 ( 3.6 L / 223 )

    1975-1982 FORD E-350 ECONOLINE

    • CC: 4917
    • Liter: 4.9
    • SubModel: CUSTOM
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1963-1964 FORD FALCON SEDAN DELIVERY

    • Liter: 4.3
    • SubModel: BASE
    • CUI: 260
    • EngineType: V8 ( 4.3 L / 260 )

    1976 FORD F-250

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

    1970 FORD E-300 ECONOLINE

    • EngineType: ALL
    • SubModel: CLUB WAGON

    1984-1985 FORD F-250

    • CC: 4917
    • Liter: 4.9
    • SubModel: XL
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1975-1978 FORD F-350

    • CC: 4917
    • Liter: 4.9
    • SubModel: NORTHLAND
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1970 FORD TORINO

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

    1968 FORD FAIRLANE

    • CC: 3278
    • Liter: 3.3
    • SubModel: 500
    • CUI: 200
    • EngineType: L6 ( 3.3 L / 200 )

    1971-1973 MERCURY MARQUIS

    • CC: 5753
    • Liter: 5.8
    • SubModel: BASE
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1970 FORD FALCON

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

    1958-1959 FORD CUSTOM 300

    • CC: 5441
    • Liter: 5.4
    • SubModel: BASE
    • CUI: 332
    • EngineType: V8 ( 5.4 L / 332 )

    1966-1967 MERCURY VOYAGER

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

    1977-1982 FORD E-350 ECONOLINE CLUB WAGON

    • CC: 4917
    • Liter: 4.9
    • SubModel: CHATEAU
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1969-1972 FORD CUSTOM

    • CC: 7030
    • Liter: 7.0
    • SubModel: BASE
    • CUI: 429
    • EngineType: V8 ( 7.0 L / 429 )

    1963-1964 MERCURY MARAUDER

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

    1957-1959 FORD RANCHERO

    • Liter: 3.6
    • SubModel: BASE
    • CUI: 223
    • EngineType: L6 ( 3.6 L / 223 )

    1957 FORD CUSTOM

    • CC: 4786
    • Liter: 4.8
    • SubModel: BASE
    • CUI: 292
    • EngineType: V8 ( 4.8 L / 292 )

    1970 MERCURY MARQUIS

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

    1971-1972 FORD LTD

    • CC: 7030
    • Liter: 7.0
    • SubModel: BROUGHAM
    • CUI: 429
    • EngineType: V8 ( 7.0 L / 429 )

    1971 MERCURY MONTEGO

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

    1976 FORD F-250

    • Liter: 6.4
    • SubModel: BASE
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1968 FORD TORINO

    • CC: 7014
    • Liter: 7.0
    • SubModel: BASE
    • CUI: 428
    • EngineType: V8 ( 7.0 L / 428 )

    1965-1969 MERCURY MONTEREY

    • EngineType: ALL
    • SubModel: ALL

    1968 MERCURY MONTEGO

    • CC: 6997
    • Liter: 7.0
    • SubModel: BASE
    • CUI: 427
    • EngineType: V8 ( 7.0 L / 427 )

    1968 MERCURY COMET

    • CC: 3278
    • Liter: 3.3
    • SubModel: BASE
    • CUI: 200
    • EngineType: L6 ( 3.3 L / 200 )

    1983-1986 FORD E-250 ECONOLINE CLUB WAGON

    • CC: 4917
    • Liter: 4.9
    • SubModel: XL
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1984-1985 FORD F-150

    • CC: 4917
    • Liter: 4.9
    • SubModel: BASE
    • CUI: 300
    • EngineType: L6 ( 4.9 L / 300 )

    1972-1974 FORD RANCHERO

    • CC: 5753
    • Liter: 5.8
    • SubModel: SQUIRE
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1963 FORD FORD 300

    • CC: 4261
    • Liter: 4.3
    • SubModel: BASE
    • CUI: 260
    • EngineType: V8 ( 4.3 L / 260 )
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