AC Delco Plug wires for 5.3 litre question 2008 Silverado.

[Steve40th396]

Went to GM parts direct and I go this number, 19351593 , and on another site rock auto these two gm numbers  89018058, 89060377 .

All three say they are 748rr's. But, when I look up them on amazon for price comparison, the first number has a little different dimensions than the last two Prices are different by 15 to 20 bucks. Of course I cant see the difference, but something must be different for a new gm number and slightly different dimensions?

15.2 ounces
Product Dimensions	9.2 x 6 x 3.8 inches

 

and the 19351593

1.3 pounds
Product Dimensions	9 x 5.7 x 3.5 inches

[carnau]

That should be the dimensions of the box. lol

 

The Amazon set will be fine. I have had a set on my farm truck forever.

748rr Plug wires. - http://amzn.to/2D2pOE8

 

While I was on amazon I was looking at other wires. This set came up and looks really good in comparison to the GM set.

http://amzn.to/2DwmAJW

[Steve40th396]

Thanx. Sometimes we get a little OCD on parts. But with plug wires for many years i just went with Taylor, MSD and many years ago Accell.. When I got older, I looked for quality in fitment and ohms. But, OEM has been pretty good lately due to needing to keep vehicles in tune for emissions etc.

But with the 9748RR vs 748RR, no one has been able to actually tell the difference online as to why one is more expensive, by quite a bit.

Wish I knew who made wires for GM/AC Delco. I make wire and connectors for a living per se. The connector, unless made by a robot, is usually the weak link.