170k on factory plugs

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Joshuasvt

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Truck didn’t come with owner’s manual and my research is turning up mixed part numbers for new plugs.

Can someone confirm the AC Delco spark plug number for an 05 Tahoe LT 5.3?

So far I have 41-962 gapped at .040

Just want to make sure that’s correct

Thanks74E8920B-6168-441C-A08B-D165612C4FA4.jpeg
 

HiHoeSilver

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Truck didn’t come with owner’s manual and my research is turning up mixed part numbers for new plugs.

Can someone confirm the AC Delco spark plug number for an 05 Tahoe LT 5.3?

So far I have 41-962 gapped at .040

Just want to make sure that’s correct

ThanksView attachment 234108

That is the most current GM recommendation, however...

They only did that to save cost on older trucks. If you want to, you can run the iridium's instead. 41-110.

They should be gapped .04 from the factory.

Screenshot_20191111-121623_Chrome.jpg
 
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