GM Blueprints
This is a quality USA manufactured replica that matches the original ID, OD as well as length & SAE material specs simply because we had that info from the GM Blueprint. Our vendor is one of the OEM's & listed on those GM Blueprint of approved suppliers. Of course they have RMA ID ribs. View More Images (ABOVE) and see some of these heater hose GM Blueprint. What do you think others used? Don't expect them to produce any GM blueprints. I'd bet they referenced zilch, zots, zip. There is no tell tale noxious odor as found in many uncured imported rubber parts.
the BACK STORY
View More Images (ABOVE) and see the GM heater hose blueprints graciously sent to us by Ken May (retired) the Director of Warehousing & Distribution - for all of GM. That is what we used. What do you think others used? Don't expect them to produce any GM blueprints. I'd bet they referenced zilch, zots, zip. There is no tell tale noxious odor as found in many uncured imported rubber parts.