2016 Sierra spark plugs, wiring , coils

[Hendrikjan]

I have 6.2 Sierra, about 95,000 mi. Want to replace the spark plugs, wiring and coils. Any recommends . 

[CamGTP]

I don't suggest replacing the coil packs, they are not known to go bad and the OEM units are very very durable. I've only replaced a handful of coil packs on the dozen and dozens of trucks I've worked on, they just rarely go bad. It would cost you a ton of money to get new OEM coils anyway.

 

For plugs just get new OEM AC delco plugs. Part number should be 41-114 if I remember right.

 

And either new AC Delco wires or any of the higher end wires from Napa or another parts store. I've run them all in the past.

[Hendrikjan]

Thanks for the help