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Spark Plug (NGK) for 2004-2024 Buick, Cadillac, Chevrolet, Ford, GMC, Lincoln, Mazda, Pontiac, Saab, Saturn, & Suzuki NEW

$ 14 .32

Product Notes

⚠️ Most jobs typically require 8 of this item.
Gap 0.040"
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 6
Material Grade Iridium
Part Number Ltr6ix-11
Pre Gap Size .044, 1.1
Reach 0.984, 25.0
Resistance 5000.0
Resistor Type Yes
Seat Type Tapered
Service Number Ltr6ix-11
Short Style Spark Plug No
Skirt No
Skirt Length 0.0
Stock Number 6509
Thread Diameter 0.551, 14.0
Washer Included No

Vehicle Fitment Guide

This part fits the following vehicles:

Make Models
Buick Allure, Enclave, LaCrosse, Rendezvous
Cadillac ATS, CTS, SRX, STS, XTS
Chevrolet Camaro, Caprice, Captiva Sport, Colorado, Equinox, Impala, Impala Limited, Malibu, Traverse, Traverse Limited
Ford E-350 Super Duty, Edge, Explorer, F-150, F-250 Super Duty, F-350 Super Duty, Flex, Mustang, Police Interceptor Sedan, Police Interceptor Utility, Taurus, Transit-150, Transit-250, Transit-350, Transit-350 HD
GMC Acadia, Acadia Limited, Canyon, Terrain
Lincoln Continental, MKS, MKT, MKX, MKZ
Mazda MX-5 Miata
Pontiac G6, G8, Torrent
Saab 9-4X
Saturn Aura, Outlook, Vue
Suzuki Grand Vitara, XL-7

This is a universal part that fits 1,142 vehicle configurations across 11 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 QSP5

Fits Years: 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.

P0300
Random Misfire Causes and Fixes
2009-2016 Chevrolet TRAVERSE
P0300
Random Misfire Causes and Fixes
2017-2021 Ford F-250 SD
P0300
Random Misfire Causes & Fixes
2017-2017 Lincoln CONTINENTAL
P0300
Random Misfire Causes & Fixes
2017-2021 Ford F-350 SD
P0300
Random Misfire Causes and 2.7L Engine Fixes
2016-2017 Lincoln MKX
P0300
Random Misfire Causes and Fixes
2016-2020 Chevrolet IMPALA
P0300
Random Misfire Causes and Fixes
2005-2011 Cadillac STS
P0300
Random Misfire Causes and Fixes
2011-2019 Ford Explorer
P0300
Random Misfire Causes and Fixes
2020-2022 Ford F-250 Super Duty
P0300
Random Misfire Causes and Fixes
2011-2018 Ford F-150
P0300
Random Misfire Causes and Fixes
2009-2017 Chevrolet Traverse
P0300
Random Misfire Causes and Fixes
2006-2009 Buick ALLURE
↑ A single part can trigger multiple related trouble codes. Each guide is vehicle- and code-specific.
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