ACDelco 41-985 Professional Iridium Spark Plug , Pack of 1

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Spark Plugs » ACDelco 41-985 Professional Iridium Spark Plug , Pack of 1
ACDelco 41-985 Professional Iridium of 1
Marketplace (2 New)
  1. Misc.
  2. Publisher: ACDelco
  3. Sales Rank in Automotive: #189254

Product Review


Features and Benefits
Step up to the latest spark plug technology with ACDelco's Professional Iridium Spark Plugs. ACDelco Iridium Plugs are the ideal replacement for today's top-performing vehicles. Iridium is one of the hardest metals used in spark plugs today, which allows for smaller, more efficient electrode designs for improved cold starting and quicker acceleration. Latest evolution in high-performance plug electrode material. Improved cold-starting and acceleration characteristics. Reduced ignition system voltage demands saves wear and tear. New-vehicle applications using iridium plugs continues to increase. Designed to last over 100,000 miles* in most applications.

* To the original retail purchaser. Parts only; installation not included. See your local retailer or independent service center that offers ACDelco Parts for details.

Function & Signs of Wear
Find out more about the ACDelco Professional Iridium Spark Plug and how it fits into the Starting and Charging System with the product facts below.

FUNCTION: Uses a high-voltage spark from the ignition coil to ignite the air/fuel mixture inside the engine's cylinders
SIGNS OF WEAR: Poor starting characteristics, decreased fuel economy, sluggish engine performance, excessive foiling or deposits on plug

What It Does
The Starting and Charging System starts the engine, maintains the battery's charge and provides power to the electrical accessories while the engine is running. The latest high-performance plug electrode material.

Product Features

Accessories

Customer Reviews

Average Customer Review
4.2 out of 5 stars (4 customer reviews)

5 of 5 people found the following review helpful
5.0 out of 5 stars AC Delco, December 6, 2009
Ryan L. Schick (Warren, IL) - See all my reviews
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Amazon Verified Purchase(What's this?)
This review is from: ACDelco 41-985 Professional Iridium Spark Plug , Pack of 1 (Misc.)
I replaced the original spark plugs in my 2003 Silverado with these. These are the same part as the originals. I got 100k miles on the first set without any problems.


1 of 1 people found the following review helpful
3.0 out of 5 stars Ran nice, But not for long., August 25, 2011
T. Fisher (Frederick, MD USA) - See all my reviews
(REAL NAME)   
This review is from: ACDelco 41-985 Professional Iridium Spark Plug , Pack of 1 (Misc.)
The spark plugs ran very well initially, but they only lasted 23,000 miles in my 2006 Silverado 5.3. They were the original plugs.

The engine started misfiring after 23K miles so I replaced the plugs and wires. Went to Bosch +2's no problem.


3 of 5 people found the following review helpful
5.0 out of 5 stars 190,000 and still going, February 7, 2006
Kyle75474 "Kyle" (Texas) - See all my reviews
This review is from: ACDelco 41-985 Professional Iridium Spark Plug , Pack of 1 (Misc.)
These spark plugs were installed in my 2001 Chevrolet Silvarado 1500 when I purchased it new and as of 02/07/2006 with 190,000 miles they are still running good.

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