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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 $6.99
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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    1998-2000 FORD CONTOUR

    • EngineType: ALL
    • SubModel: SVT

    2007-2010 CADILLAC STS

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

    2006-2007 LINCOLN TOWN CAR

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

    1991-1997 FORD AEROSTAR

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

    1999-2002 OLDSMOBILE INTRIGUE

    • EngineType: ALL
    • SubModel: GLS

    2001 FORD EXPLORER

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

    1997-2000 FORD E-350 ECONOLINE CLUB WAGON

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

    1988-1990 BUICK LESABRE

    • EngineType: ALL
    • SubModel: LIMITED

    2004-2010 FORD E-450 SUPER DUTY

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

    1996-1997 CHEVROLET TAHOE

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

    1996-2005 CHEVROLET ASTRO

    • EngineType: ALL
    • SubModel: ALL

    2001 CHEVROLET SILVERADO 3500

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

    2006 CHEVROLET MALIBU

    • EngineType: ALL
    • SubModel: MAXX LTZ

    2002 CHEVROLET VENTURE

    • EngineType: ALL
    • SubModel: ALL

    2004 FORD F-250 SUPER DUTY

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

    2004-2005 CHEVROLET MALIBU

    • EngineType: ALL
    • SubModel: LS

    1990-1993 BUICK REGAL

    • CC: 3800
    • Liter: 3.8
    • SubModel: LIMITED
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    2006-2011 CADILLAC DTS

    • EngineType: ALL
    • SubModel: ALL

    2001-2004 BUICK REGAL

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    • SubModel: ALL

    1998 FORD F-250

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    • SubModel: LOBO 50 ANIVERSARIO

    1998 CHEVROLET C1500 PICKUP

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

    2002-2004 CHEVROLET SILVERADO 1500

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

    2001 CHEVROLET VENTURE

    • EngineType: ALL
    • SubModel: WARNER BROS.

    2006-2010 FORD E-450 SUPER DUTY

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

    1996-1997 CHEVROLET EXPRESS 1500

    • EngineType: ALL
    • SubModel: ALL

    1996-1997 GMC K1500 SUBURBAN

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

    1992-1993 PONTIAC GRAND AM

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

    1996-1997 FORD MUSTANG

    • EngineType: ALL
    • SubModel: HIGH

    2013 CHEVROLET SILVERADO 1500

    • CC: 4293
    • Liter: 4.3
    • SubModel: WT
    • CUI: 262
    • EngineType: V6 ( 4.3 L / 262 )

    1997-1998 OLDSMOBILE CUTLASS

    • EngineType: ALL
    • SubModel: ALL

    1991-1999 FORD EXPLORER

    • EngineType: ALL
    • SubModel: XL

    1998 CHEVROLET K1500 PICKUP

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

    2006-2012 CHEVROLET SILVERADO 1500

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

    2000 FORD TAURUS

    • EngineType: ALL
    • SubModel: SVG

    1996-1997 GMC SAVANA 3500

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

    2002-2009 MAZDA B2300

    • EngineType: ALL
    • SubModel: ALL

    1988-1990 OLDSMOBILE 98

    • EngineType: ALL
    • SubModel: REGENCY

    1996-1997 GMC SAVANA 3500

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

    2007 MAZDA 5

    • CC: 2260
    • Liter: 2.3
    • SubModel: GRAND TOURING
    • EngineType: L4 ( 2.3 L / 2260 CC )

    2008-2009 PONTIAC TORRENT

    • EngineType: ALL
    • SubModel: BASE

    2005 FORD CROWN VICTORIA

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

    1982-1985 CADILLAC FLEETWOOD

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

    1994 OLDSMOBILE ACHIEVA

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

    2007 GMC SIERRA 3500 CLASSIC

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

    1996 BUICK REGAL

    • EngineType: ALL
    • SubModel: OLYMPIC GOLD EDITION

    1997-2000 CHEVROLET VENTURE

    • EngineType: ALL
    • SubModel: ALL

    1994-1996 BUICK REGAL

    • EngineType: ALL
    • SubModel: CUSTOM

    1992-1994 FORD TEMPO

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

    2002-2005 FORD EXPLORER

    • EngineType: ALL
    • SubModel: LIMITED

    1998-2004 OLDSMOBILE SILHOUETTE

    • EngineType: ALL
    • SubModel: GL

    1996-1997 CHEVROLET K1500 SUBURBAN

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

    2004-2005 FORD CROWN VICTORIA

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

    1996-1997 FORD TAURUS

    • EngineType: ALL
    • SubModel: G

    2004 FORD MUSTANG

    • EngineType: ALL
    • SubModel: GT EQUIPADO

    2008-2009 CHEVROLET C4500 KODIAK

    • CC: 8128
    • Liter: 8.1
    • SubModel: C4U042
    • CUI: 496
    • EngineType: V8 ( 8.1 L / 496 )

    1995 CHEVROLET CAVALIER

    • Liter: 2.3
    • SubModel: LS
    • CUI: 138
    • EngineType: L4 ( 2.3 L / 138 )

    1993 PONTIAC BONNEVILLE

    • EngineType: ALL
    • SubModel: SE

    2003-2005 GMC SIERRA 2500 HD

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

    2008-2009 GMC C6500 TOPKICK

    • CC: 8128
    • Liter: 8.1
    • SubModel: C6V042
    • CUI: 496
    • EngineType: V8 ( 8.1 L / 496 )

    1997 CHEVROLET P30 VAN

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

    1996-1997 CHEVROLET BLAZER

    • EngineType: ALL
    • SubModel: ALL

    1998-2000 GMC SONOMA

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

    1996-1999 GMC K2500 SUBURBAN

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

    2004-2005 GMC SIERRA 3500

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

    2000-2001 CHEVROLET BLAZER

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

    1996-1997 GMC SAVANA 1500

    • EngineType: ALL
    • SubModel: ALL

    1996-2000 CHEVROLET EXPRESS 3500

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

    1996-1997 CHEVROLET C3500 PICKUP

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

    1998-2014 GMC SAVANA 1500

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

    1989-1990 MERCURY TOPAZ

    • EngineType: ALL
    • SubModel: GS

    2008-2009 GMC C7500 TOPKICK

    • CC: 8128
    • Liter: 8.1
    • SubModel: C7E042
    • CUI: 496
    • EngineType: V8 ( 8.1 L / 496 )

    1990-1992 OLDSMOBILE CUTLASS CRUISER

    • EngineType: ALL
    • SubModel: SL

    2004-2005 FORD EXCURSION

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

    2003-2005 FORD EXPLORER SPORT TRAC

    • EngineType: ALL
    • SubModel: XLT

    1991 MERCURY TOPAZ

    • Liter: 2.3
    • Aspiration: N
    • SubModel: GS
    • Engine Vin: X
    • CUI: 140
    • EngineType: L4 ( 2.3 L / 140 )

    2001 MAZDA B2300

    • EngineType: ALL
    • SubModel: SX

    2001 FORD EXPLORER

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

    1999-2005 PONTIAC MONTANA

    • EngineType: ALL
    • SubModel: ALL

    2003-2004 FORD MUSTANG

    • EngineType: ALL
    • SubModel: SVT COBRA

    1997 FORD E-150 ECONOLINE

    • EngineType: ALL
    • SubModel: BASE

    1993-1995 CHEVROLET LUMINA APV

    • CC: 3800
    • Liter: 3.8
    • SubModel: LS
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    1996-1998 CHEVROLET K3500 PICKUP

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

    1992-1993 PONTIAC GRAND AM

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

    2001-2005 PONTIAC AZTEK

    • EngineType: ALL
    • SubModel: ALL

    1994 CHEVROLET CAPRICE

    • EngineType: ALL
    • SubModel: CLASSIC LS

    1999-2000 CHEVROLET K2500 PICKUP

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

    2006-2007 MAZDA 5

    • CC: 2260
    • Liter: 2.3
    • SubModel: TOURING
    • CUI: 138
    • EngineType: L4 ( 2.3 L / 138 )

    1993-1994 OLDSMOBILE CUTLASS SUPREME

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

    1998-2002 GMC SAVANA 1500

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

    1999-2004 FORD F-250 SUPER DUTY

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

    2004 GMC SONOMA

    • EngineType: ALL
    • SubModel: SLS

    1998-2005 FORD TAURUS

    • EngineType: ALL
    • SubModel: SE

    1996-1999 CHEVROLET K2500 SUBURBAN

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

    1999 GMC K1500 PICKUP

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

    1999-2003 PONTIAC BONNEVILLE

    • CC: 3800
    • Liter: 3.8
    • Aspiration: N
    • SubModel: SE
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    1990-1991 MERCURY TOPAZ

    • EngineType: ALL
    • SubModel: XR5

    1990-1996 BUICK REGAL

    • EngineType: ALL
    • SubModel: GRAN SPORT

    1996 CHEVROLET K2500 PICKUP

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

    1993 FORD MUSTANG

    • EngineType: ALL
    • SubModel: SVT COBRA R

    1994 PONTIAC GRAND AM

    • Liter: 3.1
    • SubModel: GT
    • CUI: 189
    • EngineType: V6 ( 3.1 L / 189 )
    TR55IX - NGK Iridium IX Spark Plugs is rated 4.0 out of 5 by 1.
    Rated 4 out of 5 by from Plugs The last set only lasted 6 yrs and 18000 mi. Most wore out
    Date published: 2017-04-14
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