ACDelco 41-121 Professional Iridium Spark Plug (Pack of 1)

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676Total Reviews

Spark Plugs

C

Company Review Grade:

ACDelco

1,520 Total Products

ACDelco 41-121 Professional Iridium Spark Plug (Pack of 1)

Analyzed on

Sold by ACDelco

C

Fakespot review grade

C

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Pros & Cons

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Pros

They fit perfectly and came pregapped. They were correctly gapped from the factory for my application. Worked great in my 2012 chevy cruze eco. Perfect oem replacement for my 2005 suburban 5.

High quality, no issues. Bought and installed without any problems. Plugged in without issues. Im not too familiar with spark plugs but apparently they need to be prepared before installation.

Cons

I did not see any improvement in mileage.

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Highlights

The AI used to provide these results are constantly improving. These results might change.

Quality

Most owners manuals and service manuals for cars with the ecotec 1

These are very high quality plugs from acdelco and absolutely equivalent to ngks for the above reason

The orginal plug was a delco 41121 so i opted to stay with the same plugs

Price

The price was far better than some local parts stores

And this price is unbeatable as well

Shipping

Great price for the spark plugs and shipping was fast as well

Packaging/appearance

Gm went to a new packaging design on all their acdelco products that i included a photo of for these 41121 iridium spark plugs ... Read More

Be sure the 41121 plugs you receive are in this new packaging and are marked made in japan they are likely oemd by ngk to acdel... Read More

Overview

How are reviewers describing this item?
great, good, far, fit and new.

Our engine has profiled the reviewer patterns and has determined that there may be deception involved.

Our engine has determined that the review content quality is low.

Our engine has analyzed and discovered that 66.3% of the reviews are reliable.

This product had a total of 676 reviews as of our last analysis date on Jan 9 2024.