What Is Opt Zk3 On 1999 Suburban?

[trappet]

What does it mean and how do i know if my Sub is equiped with it?

[2000DV4.8]

http://www.gm-trucks.com/home/RPO-Code-Lookup.html

 

To see if you have it, check the RPO sheet in the glovebox for the code.

[silversport]

ZK3...deluxe seat belts with shoulder harness...

Bill

[MS3DALE]

ZK3...deluxe seat belts with shoulder harness...

Bill

 

Chances are for his '99 its the other description...

 

ZK3-IDENTIFICATION,PULL-A-HEAD DESIGN

 

A lot of the '99 GMT400 SUV's had this RPO code.

 

Remember also that GM will use the same RPO code for different descriptions.

In this case "ZK3" can mean either the deluxe seat belts,or the pull-a-head design.