Firewall Air Manifold

[kozakvod]

2014 Pete 388

Has an Air Distribution Manifold on the firewall with approximately 14 airlines into and out of on both sides. So it developed a leak then another and another. I write this to hopefully keep someone from doing what I did.

Peterbilt wanted $530 for this part. I bought the same PAACAR part OEM from an online source for $240, which I was fine with until I had already bought it and took the old part off. First if you just want a new manifold buy it and move on. But if you have the time and the O-rings Im quite convinced that you could simply remove and replace O-rings to fix the problem. The other option to complete eliminating the entire thing would be to make your own.

Luckily on mine every connection was a straight pass thru except for one which is a straight T. A person could easily make a plate out of aluminum maybe 1/8” thick. Drill the necessary holes to accept pass thru flared brass air fittings that will never leak again then mount it to the firewall and roll on.

I would do this myself and just return the part but Im out of time. Have to go back to work next week. So hope this helps anyone with similar issues

Happy New Year!