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Spark Plug (NGK) for 1978-2019 Aston Martin, Buick, Cadillac, Chevrolet, Ford, GMC, Isuzu, Lincoln, Mazda, Mercury, Oldsmobile, Pontiac, & Saturn NEW

$ 14 .32

Product Notes

⚠️ Most jobs typically require 8 of this item.
Gap 0.060"
Iridium IX Spark Plug
NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer extreme ignitability and exceptional anti-fouling. Tapered cut ground electrode provides improved starting, idling and throttle response. The Iridium fine wire center electrode's durability is six times harder than platinum. Iridium alloy's extremely high melting point is perfect for today's engines. For even greater performance consider upgrading to an NGK Ruthenium HX plug.
Brand: NGK
Condition: New
LIFE
TIME
Lifetime Warranty Included
This part is backed by our industry-leading lifetime warranty. Shop with total confidence.
100%money-back 120-dayreturns OE-gradequality
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Specifications & Info


Attribute Value
Center Electrode Core Material Copper
Center Electrode Design Fine Wire
Center Electrode Insulator Tip Projection 0.16, 4.0
Center Electrode Projection Mid Projection
Center Electrode Tip Material Iridium
Electrical Terminal Type Non-removable Nut
Grade Type Performance
Ground Configuration J-gap
Ground Electrode Core Material Nickel
Ground Electrode Quantity 1
Ground Electrode Tip Design Taper Cut
Ground Electrode Tip Material Nickel
Hex Size 5/8" (16mm)
Insulator Height 2.07, 52.5
Insulator Material Ceramic
Manufacturer Heat Range 5
Material Grade Iridium
Part Number Tr55ix
Pre Gap Size .060, 1.5
Reach 0.689, 17.5
Resistance 5000.0
Resistor Type Yes
Seat Type Tapered
Service Number Tr55ix
Short Style Spark Plug No
Skirt No
Skirt Length 0.0
Stock Number 7164
Thread Diameter 0.551, 14.0
Washer Included No

Vehicle Fitment Guide

This part fits the following vehicles:

Make Models
Aston Martin DB7
Buick Allure, Century, Commercial Chassis, Electra, LaCrosse, LeSabre, Lucerne, Park Avenue, Reatta, Regal, Rendezvous, Riviera, Roadmaster, Skylark, Terraza
Cadillac 60 Special, Allante, Commercial Chassis, DeVille, DTS, Eldorado, Escalade, Fleetwood, Seville, SRX, STS, XLR
Chevrolet Astro, Avalanche 2500, Beretta, Blazer, C1500, C1500 Suburban, C2500, C2500 Suburban, C3500, Camaro, Caprice, Cavalier, Corsica, Corvette, Equinox, Express 1500, Express 2500, Express 3500, G30, Impala, K1500, K1500 Suburban, K2500, K2500 Suburban, K3500, Lumina, Lumina APV, Malibu, Monte Carlo, P30, S10, Silverado 1500, Silverado 1500 Classic, Silverado 2500 HD, Silverado 2500 HD Classic, Silverado 3500 Classic, Suburban 2500, Tahoe, Uplander, Venture
Ford Aerostar, Contour, Crown Victoria, E-150, E-150 Club Wagon, E-150 Econoline, E-150 Econoline Club Wagon, E-250, E-250 Econoline, E-350 Club Wagon, E-350 Econoline, E-350 Econoline Club Wagon, E-350 Super Duty, Escape, Excursion, Expedition, Explorer, Explorer Sport, Explorer Sport Trac, F-150, F-150 Heritage, F-250, F-250 Super Duty, F-350 Super Duty, Fiesta, Five Hundred, Focus, Freestar, Freestyle, Fusion, Mustang, Ranger, Taurus, Tempo, Thunderbird, Transit Connect, Windstar
GMC C1500, C1500 Suburban, C2500, C2500 Suburban, C3500, G3500, Jimmy, K1500, K1500 Suburban, K2500, K2500 Suburban, K3500, P3500, Safari, Savana 1500, Savana 2500, Savana 3500, Sierra 1500, Sierra 1500 Classic, Sierra 2500 HD, Sierra 2500 HD Classic, Sierra 3500, Sierra 3500 Classic, Sonoma, Yukon, Yukon XL 2500
Isuzu Hombre
Lincoln Aviator, Blackwood, Continental, LS, Mark VIII, Navigator, Town Car, Zephyr
Mazda 5, 6, B4000, MPV, Navajo, Tribute
Mercury Cougar, Grand Marquis, Marauder, Mariner, Milan, Montego, Monterey, Mountaineer, Mystique, Sable, Topaz
Oldsmobile 88, 98, Achieva, Alero, Aurora, Bravada, Cutlass, Cutlass Calais, Cutlass Ciera, Cutlass Cruiser, Cutlass Supreme, Delta 88, Intrigue, LSS, Regency, Silhouette, Toronado
Pontiac Aztek, Bonneville, Firebird, G6, Grand Am, Grand Prix, Montana, Sunfire, Torrent, Trans Sport
Saturn Relay

This is a universal part that fits 4,498 vehicle configurations across 13 makes.

Verify before ordering — please confirm your vehicle's year, make, model and sub-model specifications before placing your order. If anything is unclear, our customer service team is available to help.

Policies

Shipping Information

We offer fast, reliable shipping on all orders:

  • Ships to all countries via US Postal Service Priority Mail.
  • Most orders ship within 1 business day.
  • Delivery time: 1-4 business days after shipment.
  • International shipping available, including APO/FPO addresses.
  • Tracking information provided for all shipments.
  • Additional handling fees may apply for oversized/overweight packages.

Return Policy

We want you to be 100% satisfied with your purchase. That's why we offer:

  • 120-Day Returns - Return any part within 120 days from date of receipt.
  • Must obtain RMA (Return Merchandise Authorization) number before returning.
  • Parts must be in original condition, uninstalled, unaltered, and in original packaging.
  • Important: Electrical parts are not returnable if unsealed.
  • Please inspect parts upon arrival and notify us within 5 days of receiving incorrect or damaged parts.
  • Refunds processed after warehouse receives return and credited to original payment method.

Warranty

This part comes with a limited lifetime warranty. Warranty begins on the original purchase date.

Warranty does NOT cover:

  • Shipping costs or labor expenses.
  • Installation errors.
  • Parts used for racing.
  • Commercial vehicle parts.
NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer extreme ignitability and exceptional anti-fouling. Tapered cut ground electrode provides improved starting, idling and throttle response. The Iridium fine wire center electrode's durability is six times harder than platinum. Iridium alloy's extremely high melting point is perfect for today's engines. For even greater performance consider upgrading to an NGK Ruthenium HX plug.

Interchange Parts

Brand Part Number
Omnicraft QSP10

Fits Years: 1978 1979 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019

Go-Parts Garage · Featured Guide

A Guide to Replacing Spark Plugs on Your 2005-2010 Buick LaCrosse

Everything you need to know before you buy new aftermarket spark plugs for your LaCrosse.

Read Full Guide

⚠️ Related Trouble Codes (OBD-II)

50 matching guides

If your scan tool is showing one of these trouble codes, this part is a common fix. Each guide explains the code, how to diagnose it, and exactly what to replace.

P0171
Lean Code Causes and Fixes
2005-2007 Ford Five Hundred
P0300
Random Misfire Causes and Fixes
1999-2005 Pontiac Grand Am
P0300
Random Misfire Causes and Fixes
2004-2010 Ford F-150
P0300
Random Misfire Causes and Fixes
2005-2009 Chevrolet Equinox
P0300
Random Misfire Causes and Fixes
2007-2007 Buick RENDEZVOUS
P0300
Random Misfire Causes and Fixes
2005-2005 Gmc JIMMY CLASSIC
P0300
Random Misfire Causes and Fixes
2009-2013 Chevrolet EXPRESS
P0300
Random Misfire Causes and Fixes
2006-2009 Buick ALLURE
P0300
Random Misfire Causes and Fixes
2000-2002 Cadillac ELDORADO
P0300
Random Misfire Causes and Fixes
2000-2003 Oldsmobile AURORA
P0300
Random Misfire Causes and Fixes
2006-2009 Pontiac TORRENT
P0300
Random Misfire Causes and Fixes
2000-2004 Oldsmobile ALERO
↑ A single part can trigger multiple related trouble codes. Each guide is vehicle- and code-specific.
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