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NGK Spark Plugs TR55-1IX

Iridium IX Spark Plug 14mm x .807" Reach

NGK Spark Plugs TR55-1IX

739-TR55-1IX

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NGK Spark Plugs TR55-1IX Iridium IX Spark Plug 14mm x .807" Reach $5.99
Iridium IX Spark Plug
  • 14mm x .807" Reach
  • 5/8" Hex
  • Extended projection
  • Tapered seat
  • .059" Gap
  • Sold Individually

  • Specifications:

    Manufacturer's Part Number:
    TR55-1IX

    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 TR55-1IX fit your vehicle?

    Narrow Results

    1985 FORD THUNDERBIRD

    • CC: 3797
    • Liter: 3.8
    • SubModel: BASE
    • CUI: 232
    • EngineType: V6 ( 3.8 L / 232 )

    1998-2002 FORD E-150 ECONOLINE

    • Liter: 4.2
    • SubModel: BASE
    • CUI: 256
    • EngineType: V6 ( 4.2 L / 256 )

    1986 MERCURY COUGAR

    • EngineType: ALL
    • SubModel: LS

    1988-1995 MERCURY SABLE

    • Liter: 3.8
    • SubModel: GS
    • CUI: 232
    • EngineType: V6 ( 3.8 L / 232 )

    1995-1996 FORD ESCORT

    • EngineType: ALL
    • SubModel: MID

    2000-2004 FORD FOCUS

    • CC: 1989
    • Liter: 2.0
    • SubModel: LX
    • CUI: 121
    • EngineType: L4 ( 2.0 L / 121 )

    1986 FORD MUSTANG

    • EngineType: ALL
    • SubModel: GT

    1986-1987 LINCOLN MARK VII

    • EngineType: ALL
    • SubModel: ALL

    1986 FORD THUNDERBIRD

    • EngineType: ALL
    • SubModel: ELAN

    2006 FORD EXPLORER

    • Liter: 4.0
    • SubModel: XLT
    • CUI: 245
    • EngineType: V6 ( 4.0 L / 245 )

    1986 MERCURY CAPRI

    • EngineType: ALL
    • SubModel: 5.0

    2003-2004 FORD FOCUS

    • CC: 1989
    • Liter: 2.0
    • SubModel: ZTW
    • CUI: 121
    • EngineType: L4 ( 2.0 L / 121 )

    1995 FORD TAURUS

    • Liter: 3.8
    • SubModel: SE
    • CUI: 232
    • EngineType: V6 ( 3.8 L / 232 )

    1987-1991 FORD LTD CROWN VICTORIA

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

    1996 ISUZU HOMBRE

    • EngineType: ALL
    • SubModel: ALL

    2006 FORD EXPLORER

    • EngineType: ALL
    • SubModel: XLS

    2001-2002 FORD E-150 ECONOLINE CLUB WAGON

    • Liter: 4.2
    • SubModel: XL
    • CUI: 256
    • EngineType: V6 ( 4.2 L / 256 )

    1987-1991 MERCURY GRAND MARQUIS

    • EngineType: ALL
    • SubModel: LS

    1998-1999 FORD ESCORT

    • EngineType: ALL
    • SubModel: ZX2 HOT COUPE

    2006-2007 FORD RANGER

    • Liter: 4.0
    • SubModel: STX
    • CUI: 245
    • EngineType: V6 ( 4.0 L / 245 )

    1986-1988 FORD THUNDERBIRD

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

    2004-2007 MERCURY MONTEREY

    • EngineType: ALL
    • SubModel: ALL

    1998-2002 FORD E-250 ECONOLINE

    • Liter: 4.2
    • SubModel: BASE
    • CUI: 256
    • EngineType: V6 ( 4.2 L / 256 )

    1991-1997 FORD THUNDERBIRD

    • Liter: 3.8
    • SubModel: LX
    • CUI: 232
    • EngineType: V6 ( 3.8 L / 232 )

    2002 MAZDA B4000

    • EngineType: ALL
    • SubModel: ALL

    2006-2007 FORD FREESTAR

    • EngineType: ALL
    • SubModel: LIMITED

    1993 FORD ESCORT

    • EngineType: ALL
    • SubModel: SPORT

    2006-2007 FORD FREESTAR

    • EngineType: ALL
    • SubModel: LX BASE

    2010 FORD MUSTANG

    • CC: 4009
    • Liter: 4.0
    • SubModel: BASE
    • CUI: 245
    • EngineType: V6 ( 4.0 L / 245 )

    1987-1991 FORD COUNTRY SQUIRE

    • EngineType: ALL
    • SubModel: ALL

    1986 FORD LTD

    • Liter: 5.0
    • SubModel: CROWN VICTORIA LX
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1994-1995 BUICK CENTURY

    • CC: 2190
    • Liter: 2.2
    • SubModel: SPECIAL
    • CUI: 134
    • EngineType: L4 ( 2.2 L / 134 )

    1989-1995 FORD THUNDERBIRD

    • EngineType: ALL
    • SubModel: SUPER COUPE

    2007-2009 FORD MUSTANG

    • CC: 4009
    • Liter: 4.0
    • SubModel: LUJO
    • CUI: 245
    • EngineType: V6 ( 4.0 L / 245 )

    1985 LINCOLN MARK VII

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

    1986 FORD THUNDERBIRD

    • EngineType: ALL
    • SubModel: SPORT

    2001-2005 FORD RANGER

    • Liter: 4.0
    • SubModel: EDGE
    • CUI: 245
    • EngineType: V6 ( 4.0 L / 245 )

    1986-1990 FORD THUNDERBIRD

    • EngineType: ALL
    • SubModel: LX

    2005-2009 FORD MUSTANG

    • EngineType: ALL
    • SubModel: BASE

    1995-1997 GMC SONOMA

    • CC: 2190
    • Liter: 2.2
    • SubModel: SL
    • CUI: 134
    • EngineType: L4 ( 2.2 L / 134 )

    1985-1986 MERCURY COUGAR

    • Liter: 3.8
    • SubModel: BASE
    • CUI: 232
    • EngineType: V6 ( 3.8 L / 232 )

    1998 FORD ESCORT

    • CC: 1989
    • Liter: 2.0
    • SubModel: LX
    • CUI: 121
    • EngineType: L4 ( 2.0 L / 121 )

    1990 FORD THUNDERBIRD

    • EngineType: ALL
    • SubModel: BASE

    1994 OLDSMOBILE CUTLASS CIERA

    • CC: 2190
    • Liter: 2.2
    • SubModel: S
    • CUI: 134
    • EngineType: L4 ( 2.2 L / 134 )

    1985-1986 FORD LTD

    • Liter: 3.8
    • SubModel: BASE
    • CUI: 232
    • EngineType: V6 ( 3.8 L / 232 )

    2000-2002 FORD FOCUS

    • EngineType: ALL
    • SubModel: ZX3

    1995-1997 CHEVROLET CAVALIER

    • EngineType: ALL
    • SubModel: BASE

    1988-1995 FORD TAURUS

    • Liter: 3.8
    • SubModel: LX
    • CUI: 232
    • EngineType: V6 ( 3.8 L / 232 )

    1991-1995 FORD ESCORT

    • EngineType: ALL
    • SubModel: LX SPORT

    2007-2010 FORD EXPLORER

    • CC: 4015
    • Liter: 4.0
    • SubModel: XLT
    • CUI: 245
    • EngineType: V6 ( 4.0 L / 245 )

    2001-2011 FORD RANGER

    • Liter: 4.0
    • SubModel: XLT
    • CUI: 245
    • EngineType: V6 ( 4.0 L / 245 )

    1985 FORD THUNDERBIRD

    • Liter: 3.8
    • SubModel: ELAN
    • CUI: 232
    • EngineType: V6 ( 3.8 L / 232 )

    1994-1995 FORD MUSTANG

    • EngineType: ALL
    • SubModel: BASE

    1999 FORD ESCORT

    • EngineType: ALL
    • SubModel: LX

    1986 MERCURY COUGAR

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

    1991-1996 FORD ESCORT

    • EngineType: ALL
    • SubModel: LX

    1994-1997 GMC SONOMA

    • CC: 2190
    • Liter: 2.2
    • SubModel: SLS
    • CUI: 134
    • EngineType: L4 ( 2.2 L / 134 )

    2000-2004 FORD FOCUS

    • CC: 1989
    • Liter: 2.0
    • SubModel: SE
    • CUI: 121
    • EngineType: L4 ( 2.0 L / 121 )

    2002 FORD FOCUS

    • EngineType: ALL
    • SubModel: ZX5

    1986 MERCURY GRAND MARQUIS

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

    1985-1986 FORD MUSTANG

    • Liter: 3.8
    • SubModel: LX
    • CUI: 232
    • EngineType: V6 ( 3.8 L / 232 )

    1994-1996 CHEVROLET BERETTA

    • CC: 2190
    • Liter: 2.2
    • SubModel: BASE
    • CUI: 134
    • EngineType: L4 ( 2.2 L / 134 )

    1996-1997 FORD MUSTANG

    • Liter: 3.8
    • SubModel: BASE
    • CUI: 232
    • EngineType: V6 ( 3.8 L / 232 )

    1985-1986 FORD LTD

    • Liter: 3.8
    • SubModel: BROUGHAM
    • CUI: 232
    • EngineType: V6 ( 3.8 L / 232 )

    2000-2002 FORD ESCORT

    • EngineType: ALL
    • SubModel: ALL

    2001 MAZDA B4000

    • EngineType: ALL
    • SubModel: SE

    1986-1990 LINCOLN TOWN CAR

    • EngineType: ALL
    • SubModel: ALL

    2004 FORD RANGER

    • Liter: 4.0
    • SubModel: TREMOR
    • CUI: 245
    • EngineType: V6 ( 4.0 L / 245 )

    1994-1996 CHEVROLET CORSICA

    • CC: 2190
    • Liter: 2.2
    • SubModel: BASE
    • CUI: 134
    • EngineType: L4 ( 2.2 L / 134 )

    2003-2004 FORD FOCUS

    • CC: 1989
    • Liter: 2.0
    • SubModel: ZTS
    • CUI: 121
    • EngineType: L4 ( 2.0 L / 121 )

    1998-1999 FORD ESCORT

    • EngineType: ALL
    • SubModel: ZX2 COOL COUPE

    1999 MERCURY TRACER

    • EngineType: ALL
    • SubModel: LS

    1994 BUICK CENTURY

    • CC: 2190
    • Liter: 2.2
    • SubModel: CUSTOM
    • CUI: 134
    • EngineType: L4 ( 2.2 L / 134 )

    2002-2004 FORD FOCUS

    • EngineType: ALL
    • SubModel: SVT

    1995 FORD WINDSTAR

    • EngineType: ALL
    • SubModel: GL PLUS

    1987-1990 FORD THUNDERBIRD

    • EngineType: ALL
    • SubModel: EQUIPADO

    1988-1995 MERCURY SABLE

    • Liter: 3.8
    • SubModel: LS
    • CUI: 232
    • EngineType: V6 ( 3.8 L / 232 )

    1998-1999 FORD ESCORT

    • EngineType: ALL
    • SubModel: ZX2 EQUI

    1987-1990 MERCURY COUGAR

    • EngineType: ALL
    • SubModel: ALL

    2003-2004 FORD FOCUS

    • CC: 1989
    • Liter: 2.0
    • SubModel: ZX5
    • CUI: 121
    • EngineType: L4 ( 2.0 L / 121 )

    1987-1989 FORD THUNDERBIRD

    • CC: 3797
    • Liter: 3.8
    • SubModel: BASE
    • CUI: 232
    • EngineType: V6 ( 3.8 L / 232 )

    1998-2000 FORD E-150 ECONOLINE CLUB WAGON

    • Liter: 4.2
    • SubModel: CUSTOM
    • CUI: 256
    • EngineType: V6 ( 4.2 L / 256 )

    1995 FORD WINDSTAR

    • Liter: 3.8
    • SubModel: GL
    • CUI: 232
    • EngineType: V6 ( 3.8 L / 232 )

    1986-1994 LINCOLN CONTINENTAL

    • EngineType: ALL
    • SubModel: ALL

    1998-2002 FORD F-150

    • Liter: 4.2
    • SubModel: XL
    • CUI: 256
    • EngineType: V6 ( 4.2 L / 256 )

    1994 GMC SONOMA

    • CC: 2190
    • Liter: 2.2
    • SubModel: SL
    • CUI: 134
    • EngineType: L4 ( 2.2 L / 134 )

    2003-2004 FORD FOCUS

    • EngineType: ALL
    • SubModel: HIGH

    1986 MERCURY GRAND MARQUIS

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

    1994-1997 CHEVROLET S10 PICKUP

    • CC: 2190
    • Liter: 2.2
    • SubModel: BASE
    • CUI: 134
    • EngineType: L4 ( 2.2 L / 134 )

    2004-2009 MAZDA B4000

    • EngineType: ALL
    • SubModel: ALL

    2006-2009 FORD RANGER

    • Liter: 4.0
    • SubModel: SPORT
    • CUI: 245
    • EngineType: V6 ( 4.0 L / 245 )

    2002 FORD E-150 ECONOLINE

    • Liter: 4.2
    • SubModel: XL
    • CUI: 256
    • EngineType: V6 ( 4.2 L / 256 )

    1987-1991 FORD LTD CROWN VICTORIA

    • EngineType: ALL
    • SubModel: LX

    1988-1991 FORD TAURUS

    • EngineType: ALL
    • SubModel: BASE

    2005-2008 LAND ROVER LR3

    • CC: 4009
    • Liter: 4.0
    • SubModel: SE
    • CUI: 245
    • EngineType: V6 ( 4.0 L / 245 )

    2003-2004 FORD FOCUS

    • EngineType: ALL
    • SubModel: MID

    1987-1991 FORD LTD CROWN VICTORIA

    • EngineType: ALL
    • SubModel: S

    2007-2010 FORD EXPLORER SPORT TRAC

    • Liter: 4.0
    • SubModel: LIMITED
    • CUI: 245
    • EngineType: V6 ( 4.0 L / 245 )

    1988 FORD TAURUS

    • Liter: 3.8
    • SubModel: L
    • CUI: 232
    • EngineType: V6 ( 3.8 L / 232 )

    1998-2002 FORD F-150

    • Liter: 4.2
    • SubModel: XLT
    • CUI: 256
    • EngineType: V6 ( 4.2 L / 256 )
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