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2018 GMC Sierra 1500
1
0
Price Match Guarantee
60-Day Returns
Lifetime Replacement
Price Match Guarantee
60-Day Returns
Lifetime Replacement
Guaranteed to Fit2018 GMC Sierra 1500 Change Vehicle

AC Delco®
2018 GMC Sierra 1500 - Professional Iridium Series Spark Plug, Sold individually

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$12.49
Manufacturer #41-114
Guaranteed to Fit2018 GMC Sierra 1500 Change Vehicle
Qty:
1

Your Vehicle Fit Details

Vehicle Name
Submodel
Engine
Fitment Information
2018 GMC Sierra 1500
Base
6 Cyl 4.3L
enginedesignationname: LV3, Eng.VIN: H
2018 GMC Sierra 1500
Denali
8 Cyl 5.3L
enginedesignationname: L83, Eng.VIN: C
2018 GMC Sierra 1500
Base
8 Cyl 5.3L
enginedesignationname: L83, Eng.VIN: C
2018 GMC Sierra 1500
SLT
8 Cyl 5.3L
enginedesignationname: L8B, Eng.VIN: R
2018 GMC Sierra 1500
SLE
6 Cyl 4.3L
enginedesignationname: LV3, Eng.VIN: H
2018 GMC Sierra 1500
Denali
8 Cyl 6.2L
enginedesignationname: L86, Eng.VIN: J
2018 GMC Sierra 1500
SLT
8 Cyl 6.2L
enginedesignationname: L86, Eng.VIN: J
2018 GMC Sierra 1500
SLE
8 Cyl 5.3L
enginedesignationname: L83, Eng.VIN: C

Highlights

Part:
Spark Plug
Brand:
AC Delco
Notes:
0.98 in. Thread Reach; 14 mm Hex Size; 25.3 mm Insulator Height; 4000-7500 Ohms Resistance; (1) Ground Electrode; Iridium Ground Electrode Tip; Iridium Material Grade; Fine Wire Center Electrode Design; Conical Seat Type
Series:
Professional Iridium Series
Replaces OE Number:
12622441
Quantity Sold:
Sold individually
Warranty:
7-year or unlimited mile AC Delco warranty
Prop 65 Warning:

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Interchange Part Number:
12622441
Fitnotes:
enginedesignationname: LV3, Eng.VIN: H,enginedesignationname: L83, Eng.VIN: C,enginedesignationname: L8B, Eng.VIN: R,enginedesignationname: L86, Eng.VIN: J

Vehicle Fitment Information

Vehicle Name
Submodel
Engine
Fitment Information
2014-2018 Chevrolet Silverado 1500
LT
6 Cyl 4.3L
enginedesignationname: LV3, Eng.VIN: H
2014-2018 GMC Sierra 1500
SLE
6 Cyl 4.3L
enginedesignationname: LV3, Eng.VIN: H
2014-2019 Chevrolet Corvette
Stingray
8 Cyl 6.2L
enginedesignationname: LT1, Eng.VIN: 7
2014-2021 Chevrolet Silverado 1500
High Country
8 Cyl 6.2L
enginedesignationname: L86, Eng.VIN: J
2014-2021 Chevrolet Silverado 1500
High Country
8 Cyl 5.3L
enginedesignationname: L83, Eng.VIN: C
Page 1 of 30 | Showing 1 - 5 of 148 results

Product Information

AC DELCO PROFESSIONAL IRIDIUM SPARK PLUG

Ignite your engine with the platinum build, precise fit and prolonged performance of AC Delco’s Professional Platinum Spark Plug. Established in 1899, AC Delco manufactures original GM parts and premium OE replacement parts for other brands in the automotive aftermarket.

  • Electrode’s platinum center and pad minimize ignition voltage demand
  • Equipped with dual platinum tip for enduring function and protection against rust
  • Spark gap stays constant for reliable performance
  • Three-piece Fired-In-Suppressor Seal (FISS) prevents leaks and prolongs electrode life
  • Delivers up to 100,000 miles of service
Need help?Call our product expert1-866-529-0412
Chat with us
Mondays - Sundays7am - 11pm ET | 4am - 8pm PT
Warranty Policy
Right parts, guaranteed. If you find any defects, let us know within 60 days and we’ll take care of it. Check out our Warranty Policy for more details.
Shipping Policy
We ship fast so you can get on the road that much faster. Check out our Shipping Policy for more details.
Easy Return Policy
We’re only happy if you’re happy. If you’re not entirely satisfied with your order, you may be entitled to a refund. Check out our Return Policy for more details.

Product Q&A

5
Are these spark plugs pre gapped?GonzoMar 23, 2022
Best Answer:Hi John, I'll be glad to assist you. Yes, the pre-gap is 0.04 inches. You can use the link below to order the part and take advantage of the limited stock available. Happy shopping! <a href="https://www.carparts.com/spark-plug/ac-delco/ac41114?can=cpab2020_20220323" target="_blank">https://www.carparts.com/spark-plug/ac-delco/ac41114?can=cpab2020_20220323</a>
Andrew B.STAFFMar 23, 2022

Customer Reviews

Professional Iridium Series Spark Plug, Sold Individually
Replaced the old plugs after 100k miles and the motor purrs like a kitten. The number 8 cylinder on the passenger side behind the exhaust manifold is a booger to get to and change. Do yourself a favor and remove the front tire and use a couple jack stands for safety and go get that plug.
Mitch S.
VERIFIED PURCHASER
Purchased on Oct 27, 2022