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Spark Plug (NGK) for 1995-2024 Buick, Cadillac, Chevrolet, Ford, GMC, Hummer, Isuzu, Lincoln, Mazda, Mercury, Oldsmobile, Polaris, Pontiac, Saab, & Saturn NEW

$ 14 .32

Product Notes

⚠️ Most jobs typically require 8 of this item.
Gap 0.044"
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 0.14, 3.5
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 Ltr5ix-11
Pre Gap Size .044, 1.1
Reach 0.984, 25.0
Resistance 5000.0
Resistor Type Yes
Seat Type Tapered
Service Number Ltr5ix-11
Short Style Spark Plug No
Skirt No
Skirt Length 0.0
Stock Number 4344
Thread Diameter 0.551, 14.0
Washer Included No

Vehicle Fitment Guide

This part fits the following vehicles:

Make Models
Buick Allure, Envision, LaCrosse, Rainier, Regal, Verano
Cadillac ATS, CT5, CTS, Escalade, Escalade ESV
Chevrolet Blazer, Camaro, Captiva Sport, Cavalier, Classic, Cobalt, Colorado, Corvette, Equinox, Express 2500, Express 3500, HHR, Impala, Malibu, Malibu Limited, Orlando, Silverado 1500, Silverado 1500 LD, Silverado 1500 LTD, Silverado 2500 HD, Silverado 3500 HD, Suburban, Suburban 3500 HD, Tahoe, Trailblazer, Trailblazer EXT
Ford C-Max, Contour, Edge, Escape, Escort, Flex, Focus, Fusion, Maverick, Police Responder Hybrid, SSV Plug-In Hybrid, Taurus, Taurus X, Transit Connect
GMC Acadia, Canyon, Envoy, Envoy XL, Envoy XUV, Savana 2500, Savana 3500, Sierra 1500, Sierra 1500 Limited, Sierra 2500 HD, Sierra 3500 HD, Terrain, Yukon, Yukon XL
Hummer H3, H3T
Isuzu Ascender, i-280, i-290, i-350, i-370
Lincoln MKS, MKT, MKX, MKZ
Mazda 3, 3 Sport, 5, 6, CX-7, CX-9, Tribute
Mercury Cougar, Mariner, Milan, Mystique, Sable
Oldsmobile Alero, Bravada
Polaris Slingshot, Slingshot Grand Touring, Slingshot Grand Touring LE, Slingshot S, Slingshot SL, Slingshot SL LE, Slingshot SLR, Slingshot SLR LE
Pontiac G5, G6, Grand Am, Pursuit, Solstice, Sunfire
Saab 9-5, 9-7x
Saturn Aura, Ion, L100, L200, L300, LS, LS1, LW1, LW200, Sky, Vue

This is a universal part that fits 2,114 vehicle configurations across 15 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.

Fits Years: 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 2020 2021 2022 2023 2024

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.

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P0272
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P0284
Cylinder 8 Balance Fault Causes & Fixes
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P0284
Cylinder 8 Balance Fault Causes and Fixes
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P0300
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↑ A single part can trigger multiple related trouble codes. Each guide is vehicle- and code-specific.
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