2012 Silverado AC/Delco spark plug wire set

[14SLTZ71]

2012 Silverado 5.3L (LC9) can someone tell me which AC/Delco spark plug wire set I need if my coil is Delphi 12573190

[anumber1]

ACDELCO 748UU {#19206447, 19209100, 748WW} Is the OEM set

or

 

ACDELCO 9748UU {#19297035} Is the less expensive AC Professional service part.

[14SLTZ71]

ACDELCO 748UU {#19206447, 19209100, 748WW} Is the OEM set

 

or

 

ACDELCO 9748UU {#19297035} Is the less expensive AC Professional service part.

Thanks

[14SLTZ71]

Discontinued 19206447 (acdelco 748UU)

replaced by GM 19351570 (acdelco 743J)

[14SLTZ71]

Neat little tool to check for a bad coil.

 

https://www.amazon.com/OTC-6589-Electronic-Ignition-Tester/dp/B0050SFVO2

 

Diagnostic instructions.

 

http://easyautodiagnostics.com/gm/4.8L-5.3L-6.0L/how-to-test-the-cop-coils-1