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Combining Spark Plugs 41-932 and 41-993
02-04-2011, 05:11 PM
I have a couple of left over AC Delcos 41-932 from the last time I changed my spark plugs (bought a set of 8, was left over with 2), but I know that this number was repleced by 41-993. Is it Ok to use the 2 left over 41-932 with 4 41-993?
I mean, are the plugs essentially the same? is the muber the only thing they changed. They both look the same.
-1996 GMC JIMMY 2WD
02-05-2011, 11:11 AM
No problem, they are interchangeable. From what I have read, the difference is minor so they discontinued the 41-932 and superceeded by 41-993.
02-10-2011, 02:46 PM
Great! Thanks for youre reply and help. I had some 41-932 left from my 8-Pack and had to purchase the 41-993's, but always wondered if there would be a problem with my engine if I mixed them, I mean, I dont wanna throw away a pair of perfectly new 41-932's
compared to the NEWER 41-932. It is slightly larger (minimally) larger on the old ones. The newer 41-932's are exactly looking as the 41-993's.
So good, I guess I will just combine the old 41-932's and the new 41-932's and 41-993.
Thanks for the clarification!
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