Time delay for incoming pulse

Basically, I need to delay an incoming pulse in a wire that is in a 12V system. I can't find what I need online at all.

This is kind of what I need, but I don't need a relay:

http://www.wolstentech.com/products/timedelayrelay/tdr-s.php

Here is a pic of what I'm looking for:

http://img811.imageshack.us/img811/6075/delayc.jpg

Can someone provide me a link of what I need? It needs to be adjustable by a magnitude of seconds (3 second minimum, around a 10 second maximum?).

Best answer will provide a link to the product and the name of the thing I am looking for.

Thank you!!

You can use a 555 timer. You can get it for like $2 at Radio Shack.

Here is an example circuit:

http://www.electronics-project-design.com/timedelaycircuit.html