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NGK Spark Plugs TR55IX

Iridium IX Spark Plug 14mm x .708" Reach

NGK Spark Plugs TR55IX

739-TR55IX

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NGK Spark Plugs TR55IX Iridium IX Spark Plug 14mm x .708" Reach $7.99
Iridium IX Spark Plug
  • 14mm x .708" Reach
  • 5/8" Hex
  • Projected
  • Tapered seat
  • .059" Gap
  • Sold Individually

  • Specifications:

    Manufacturer's Part Number:
    TR55IX

    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 TR55IX fit your vehicle?

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    2003 FORD F-150

    • Liter: 5.4
    • SubModel: XLT
    • CUI: 330
    • EngineType: V8 ( 5.4 L / 330 )

    1999 OLDSMOBILE 88

    • EngineType: ALL
    • SubModel: ROYALE

    1996-2000 GMC C2500 PICKUP

    • Liter: 5.7
    • SubModel: SIERRA SL
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    2003-2004 FORD F-350 SUPER DUTY

    • Liter: 6.8
    • SubModel: KING RANCH
    • CUI: 415
    • EngineType: V10 ( 6.8 L / 415 )

    1986 CADILLAC DEVILLE

    • EngineType: ALL
    • SubModel: TOURING

    2001 MAZDA TRIBUTE

    • EngineType: ALL
    • SubModel: LX

    2000-2004 LINCOLN LS

    • CC: 2968
    • Liter: 3.0
    • SubModel: BASE
    • CUI: 181
    • EngineType: V6 ( 3.0 L / 181 )

    1996 FORD WINDSTAR

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

    2006 SATURN RELAY

    • CC: 3475
    • Liter: 3.5
    • SubModel: 3
    • CUI: 213
    • EngineType: V6 ( 3.5 L / 213 )

    2006-2009 FORD FUSION

    • EngineType: ALL
    • SubModel: SEL PLUS

    1997-1998 CHEVROLET K2500 PICKUP

    • Liter: 5.0
    • SubModel: SILVERADO
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1997-2000 FORD E-350 ECONOLINE CLUB WAGON

    • Liter: 5.4
    • SubModel: CUSTOM
    • CUI: 330
    • EngineType: V8 ( 5.4 L / 330 )

    1999-2000 BUICK REGAL

    • EngineType: ALL
    • SubModel: GS

    2009-2010 FORD E-350 SUPER DUTY

    • Liter: 6.8
    • SubModel: XL
    • CUI: 415
    • EngineType: V10 ( 6.8 L / 415 )

    1994 PONTIAC GRAND PRIX

    • Liter: 3.1
    • SubModel: SE
    • CUI: 189
    • EngineType: V6 ( 3.1 L / 189 )

    1995 PONTIAC GRAND PRIX

    • Liter: 3.1
    • SubModel: SE
    • CUI: 189
    • EngineType: V6 ( 3.1 L / 189 )

    2007 GMC SIERRA 2500 HD CLASSIC

    • Liter: 8.1
    • SubModel: CLASSIC SLT
    • CUI: 496
    • EngineType: V8 ( 8.1 L / 496 )

    1995-1996 CHEVROLET BERETTA

    • EngineType: ALL
    • SubModel: Z26

    2003-2005 FORD EXPLORER SPORT TRAC

    • EngineType: ALL
    • SubModel: XLS

    1996-1997 CHEVROLET C3500 PICKUP

    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1999-2002 CHEVROLET CAVALIER

    • CC: 2392
    • Liter: 2.4
    • SubModel: BASE
    • CUI: 146
    • EngineType: L4 ( 2.4 L / 146 )

    2001-2002 FORD E-150 ECONOLINE CLUB WAGON

    • Liter: 5.4
    • SubModel: XL
    • CUI: 330
    • EngineType: V8 ( 5.4 L / 330 )

    1996-2000 GMC C3500 PICKUP

    • Liter: 5.7
    • SubModel: SIERRA SL
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1996-2000 GMC SAVANA 3500

    • Liter: 7.4
    • SubModel: SLE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1999-2001 OLDSMOBILE ALERO

    • EngineType: ALL
    • SubModel: GX

    1991-1994 FORD AEROSTAR

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

    1989 OLDSMOBILE CUTLASS CALAIS

    • Liter: 3.3
    • SubModel: S
    • CUI: 204
    • EngineType: V6 ( 3.3 L / 204 )

    2010 FORD E-350 SUPER DUTY

    • Liter: 6.8
    • SubModel: XLT
    • CUI: 415
    • EngineType: V10 ( 6.8 L / 415 )

    2003-2005 GMC SAFARI

    • EngineType: ALL
    • SubModel: ALL

    2006 GMC SIERRA 2500 HD

    • CC: 8128
    • Liter: 8.1
    • SubModel: SLT
    • CUI: 496
    • EngineType: V8 ( 8.1 L / 496 )

    1996-1999 GMC C2500 SUBURBAN

    • Liter: 7.4
    • SubModel: SLE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    2006 PONTIAC G6

    • Liter: 3.5
    • SubModel: BASE
    • CUI: 214
    • EngineType: V6 ( 3.5 L / 214 )

    2004 FORD F-250 SUPER DUTY

    • Liter: 5.4
    • SubModel: KING RANCH
    • CUI: 330
    • EngineType: V8 ( 5.4 L / 330 )

    1989 FORD TEMPO

    • EngineType: ALL
    • SubModel: AWD

    2002-2005 GMC SIERRA 1500

    • Liter: 4.3
    • SubModel: BASE
    • CUI: 262
    • EngineType: V6 ( 4.3 L / 262 )

    1982-1985 CADILLAC DEVILLE

    • Liter: 4.1
    • SubModel: CABRIOLET
    • CUI: 250
    • EngineType: V8 ( 4.1 L / 250 )

    1996-1997 CHEVROLET K3500 PICKUP

    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1996-1999 CHEVROLET C2500 SUBURBAN

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1997-2005 FORD CROWN VICTORIA

    • Liter: 4.6
    • SubModel: LX
    • CUI: 281
    • EngineType: V8 ( 4.6 L / 281 )

    2001-2002 CADILLAC ELDORADO

    • EngineType: ALL
    • SubModel: ALL

    1989-1993 BUICK SKYLARK

    • Liter: 3.3
    • SubModel: CUSTOM
    • CUI: 204
    • EngineType: V6 ( 3.3 L / 204 )

    2001-2002 FORD E-450 ECONOLINE SUPER DUTY

    • Liter: 5.4
    • SubModel: CUSTOM
    • CUI: 330
    • EngineType: V8 ( 5.4 L / 330 )

    2005 FORD CROWN VICTORIA

    • Liter: 4.6
    • SubModel: S
    • CUI: 281
    • EngineType: V8 ( 4.6 L / 281 )

    1996-2000 GMC C2500 PICKUP

    • Liter: 7.4
    • SubModel: SIERRA SLE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1996-2003 GMC SONOMA

    • Liter: 4.3
    • SubModel: SLS
    • CUI: 262
    • EngineType: V6 ( 4.3 L / 262 )

    2000-2003 FORD F-150

    • EngineType: ALL
    • SubModel: HARLEY-DAVIDSON EDITION

    1996-1998 CHEVROLET K3500 PICKUP

    • Liter: 5.7
    • SubModel: CHEYENNE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    2000 PONTIAC GRAND AM

    • EngineType: ALL
    • SubModel: SE2

    2003 MERCURY GRAND MARQUIS

    • EngineType: ALL
    • SubModel: LSE

    1999-2005 PONTIAC MONTANA

    • EngineType: ALL
    • SubModel: ALL

    2008 MAZDA TRIBUTE

    • EngineType: ALL
    • SubModel: HYBRID

    1996-1999 CHEVROLET C2500 SUBURBAN

    • Liter: 5.7
    • SubModel: LS
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1993 CADILLAC 60 SPECIAL

    • EngineType: ALL
    • SubModel: ALL

    1999 OLDSMOBILE 88

    • EngineType: ALL
    • SubModel: ROYALE LS

    1999 CHEVROLET C2500 PICKUP

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    2005 LINCOLN LS

    • EngineType: ALL
    • SubModel: LUXURY

    2005 FORD CROWN VICTORIA

    • Liter: 4.6
    • SubModel: SPECIAL EDITION
    • CUI: 281
    • EngineType: V8 ( 4.6 L / 281 )

    1995 FORD EXPLORER

    • EngineType: ALL
    • SubModel: EXPEDITION

    2000 BUICK REGAL

    • EngineType: ALL
    • SubModel: LSE

    1996-1998 GMC SAFARI

    • EngineType: ALL
    • SubModel: SLX

    1996-1997 CHEVROLET K2500 SUBURBAN

    • Liter: 7.4
    • SubModel: LT
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1996-1999 GMC C2500 SUBURBAN

    • Liter: 5.7
    • SubModel: SLE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1996-2005 GMC SAVANA 2500

    • Liter: 4.3
    • SubModel: BASE
    • CUI: 262
    • EngineType: V6 ( 4.3 L / 262 )

    1996-1998 CHEVROLET S10 PICKUP

    • EngineType: ALL
    • SubModel: SS

    2000 GMC C3500HD

    • CC: 7
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    2002-2006 CHEVROLET AVALANCHE 2500

    • EngineType: ALL
    • SubModel: ALL

    1999-2000 CHEVROLET C3500 PICKUP

    • Liter: 5.7
    • SubModel: LS
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1998-2000 FORD E-150 ECONOLINE

    • Liter: 5.4
    • SubModel: XL
    • CUI: 330
    • EngineType: V8 ( 5.4 L / 330 )

    2002-2004 CHEVROLET SILVERADO 1500

    • Liter: 4.3
    • SubModel: WT
    • CUI: 262
    • EngineType: V6 ( 4.3 L / 262 )

    1999-2000 CHEVROLET C2500 PICKUP

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1998 GMC K2500 PICKUP

    • Liter: 5.0
    • SubModel: SIERRA SLE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1999-2000 CHEVROLET K2500 PICKUP

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    2001-2006 GMC YUKON XL 2500

    • CC: 8128
    • Liter: 8.1
    • SubModel: SLT
    • CUI: 496
    • EngineType: V8 ( 8.1 L / 496 )

    2006 GMC SAVANA 1500

    • Liter: 4.3
    • SubModel: LS
    • CUI: 262
    • EngineType: V6 ( 4.3 L / 262 )

    2008 PONTIAC TORRENT

    • EngineType: ALL
    • SubModel: LS

    1996-1997 GMC YUKON

    • Liter: 5.7
    • SubModel: SLT
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1998 CHEVROLET C1500 PICKUP

    • Liter: 4.3
    • SubModel: CHEYENNE
    • CUI: 262
    • EngineType: V6 ( 4.3 L / 262 )

    2006-2009 MERCURY MILAN

    • CC: 2968
    • Liter: 3.0
    • SubModel: PREMIER
    • CUI: 181
    • EngineType: V6 ( 3.0 L / 181 )

    1997 CADILLAC DEVILLE

    • EngineType: ALL
    • SubModel: CONCOURS

    1999-2000 CHEVROLET C2500 PICKUP

    • Liter: 5.7
    • SubModel: LS
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1996-1999 CHEVROLET K2500 SUBURBAN

    • Liter: 5.7
    • SubModel: LS
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1996 BUICK REGAL

    • EngineType: ALL
    • SubModel: GRAN SPORT

    1998-2002 FORD E-150 ECONOLINE CLUB WAGON

    • Liter: 4.6
    • SubModel: XLT
    • CUI: 281
    • EngineType: V8 ( 4.6 L / 281 )

    2005 CHEVROLET UPLANDER

    • EngineType: ALL
    • SubModel: ALL

    2008 MAZDA B3000

    • EngineType: ALL
    • SubModel: ALL

    2003-2004 FORD MUSTANG

    • EngineType: ALL
    • SubModel: MACH I

    1998 CHEVROLET K1500 PICKUP

    • Liter: 4.3
    • SubModel: SILVERADO
    • CUI: 262
    • EngineType: V6 ( 4.3 L / 262 )

    2002-2003 BUICK RENDEZVOUS

    • EngineType: ALL
    • SubModel: CXL PLUS

    1996-1997 FORD MUSTANG

    • CC: 4601
    • Liter: 4.6
    • SubModel: BASE
    • CUI: 281
    • EngineType: V8 ( 4.6 L / 281 )

    1996-1997 OLDSMOBILE CUTLASS SUPREME

    • EngineType: ALL
    • SubModel: ALL

    2002 CHEVROLET BLAZER

    • EngineType: ALL
    • SubModel: XTREME

    1996-1998 CHEVROLET K2500 PICKUP

    • Liter: 5.7
    • SubModel: CHEYENNE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1996-2000 GMC SAVANA 2500

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1997 FORD F-150

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

    1995 CHEVROLET G30 VAN

    • Liter: 5.7
    • SubModel: BEAUVILLE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    2008 CHEVROLET C5500 KODIAK

    • CC: 8128
    • Liter: 8.1
    • SubModel: C5C044
    • CUI: 496
    • EngineType: V8 ( 8.1 L / 496 )

    2005-2006 FORD RANGER

    • Liter: 2.3
    • SubModel: XL
    • CUI: 140
    • EngineType: L4 ( 2.3 L / 140 )

    2005-2009 BUICK ALLURE

    • EngineType: ALL
    • SubModel: CX

    1996-1998 CHEVROLET K2500 PICKUP

    • Liter: 5.7
    • SubModel: WT
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1988-1990 BUICK LESABRE

    • EngineType: ALL
    • SubModel: CUSTOM
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