Replacing spark plug wires

[mlupone]

I have an '04 Suburban Z71 with 203K. Does it matter which spark plug wires to get with respect to the existing coils?

I noticed that Rock Auto has many different spark plug wires for this vehicle and in some of them, in the description, it identifies the coil that it goes with (if that makes any sense). See below for Rock Auto excerpt.

Matt

ACDELCO 19417606 GM Original Equipment Info
Fits FLEX Fuel; COILS STAMPED 19005218-DELPHI COIL, 7MM DIA, 9.2 IN LG
or GAS; COILS STAMPED 19005218-DELPHI COIL, 7MM DIA, 9.2 IN LG

 

[Sam Harris]

Yes, there are 2 different coil types. It should be easy to locate which you have if you pop the hood.

 

[mattbta]