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Guaranteed to Fit2018 Chevrolet Silverado 3500 HD Change Vehicle

AC Delco®
2018 Chevrolet Silverado 3500 HD - Professional Iridium Series Spark Plug, Sold individually

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$15.99
$16.10Save: $0.11(1%)
Manufacturer #41-110
Guaranteed to Fit2018 Chevrolet Silverado 3500 HD Change Vehicle
Qty:
1

Your Vehicle Fit Details

Vehicle Name
Submodel
Engine
Fitment Information
2018 Chevrolet Silverado 3500 HD
LT
8 Cyl 6.0L
-
2018 Chevrolet Silverado 3500 HD
High Country
8 Cyl 6.0L
-
2018 Chevrolet Silverado 3500 HD
LTZ
8 Cyl 6.0L
-
2018 Chevrolet Silverado 3500 HD
WT
8 Cyl 6.0L
-

Highlights

Brand:
Notes:
5/8 in. hex size; Tapered seat style; Iridium long life electrode configuration
Series:
Professional Iridium Series
Electrode Tip Material:
Iridium Electrode Tip
Replaces OE Number:
12571164, 12609877, 12621258, 41985
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.

Electrode Core Material:
Copper Electrode Core
Gap Size:
0.04 in.
Reach:
18 mm Reach
Thread Size:
14 mm thread size

Vehicle Fitment Information

Vehicle Name
Submodel
Engine
Fitment Information
1997-2004 Chevrolet Corvette
Base
8 Cyl 5.7L
-
1998 Chevrolet Corvette
Indianapolis 500 Pace Car
8 Cyl 5.7L
-
1998-2002 Chevrolet Camaro
Z28
8 Cyl 5.7L
-
1998-2002 Chevrolet Camaro
Z28 SS
8 Cyl 5.7L
-
1998-2002 Pontiac Firebird
Formula
8 Cyl 5.7L
-
Page 1 of 82 | Showing 1 - 5 of 407 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
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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.

Customer Reviews

Professional Iridium Series Spark Plug, Sold Individually
CAN REALLY TELL THE DIFFERENCE IN THE HORSEPOWER
GREAT HIGH PERFORMANCE PART
LARRY H.
VERIFIED PURCHASER
Purchased on Aug 28, 2021
Great Price
Richard H.
VERIFIED PURCHASER
Purchased on Sep 25, 2021
Always great products
David S.
VERIFIED PURCHASER
Purchased on Apr 04, 2023