The air reservoir tanks on my truck (2007 KW T300) are starting to leak from corrosion as is expected here in the Midwest on a 17 yr old truck. Kenworth apparently wants $630 for each one and there are 3. Outside has 2 ports, one in the middle with a plug and the bottom one is a drain valve. Inside has Five 1/2” ports and one 1/4” port. 8” diameter and 25” long, strap mount under the battery box. I’ve dug around on Dorman’s site and can’t come up with one I’m satisfied will replace them. Hate to bite the bullet on $1900 for air tanks but I might have to. Anyone got any other options??
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Kenworth air tanks
- Thread starter ahart
- Start date
1693TA
Senior Member
I have two under one of my Mack trucks that corroded out and I sawed the end bells clear in my bandsaw, had center sections rolled and I welded them back together as a new tank. The old bungs were reutilized as they were removed with a hole saw in a drill press prior to sawing the tank(s). I have done the same with a Mack step tank and it's now an oil tank for a wet kit. All these tanks were steel, but I'd have done the same with aluminum.
Truck Shop
Senior Member
The reason--too many truck configurations for identical aftermarket replacement tanks.
It's either adapt a close aftermarket or OEM-and because of the price of fittings plus
time it's a better deal to buck up and buy the OEM and be done with it. Plus it's back to
stock configuration.
It's either adapt a close aftermarket or OEM-and because of the price of fittings plus
time it's a better deal to buck up and buy the OEM and be done with it. Plus it's back to
stock configuration.
heymccall
Senior Member
No chance at part number?
G86-1141 which really makes a lot of difference because I’ve already seen them at $285 with that PN. That’s more in the ball park of not making me angry. https://nickstruckparts.com/products/airtank-172-5941-air-tank-kenworth
Truck Shop
Senior Member
Buy It then---don't let it get away, there's 35 watchers.
1693TA
Senior Member
This be my air tank cutting bandsaw:
This is the tank I've converted to an oil tank for a wet kit but have not used yet. I've replaced most of the bottom of this one and deepened the original sump:
This is another end bell from a scrap tank that was crushed on the other end. I take these out to rebuild an otherwise scrap tank:
One of these days once the need arises, I'll cut this one open and repair the crushed area bringing it back to original form and weld it back together:
Boy a good shop cleaning would be in order. I got so much crap piled in so many places it's difficult to find what's needed sometimes.
I have a little stand around here I built from channel and metal casters with one of the casters driven by hydraulic motor which is variable speed. It works very well for welding seams in tanks and generates very linear welds putting the end bells back into tanks.
This is the tank I've converted to an oil tank for a wet kit but have not used yet. I've replaced most of the bottom of this one and deepened the original sump:
This is another end bell from a scrap tank that was crushed on the other end. I take these out to rebuild an otherwise scrap tank:
One of these days once the need arises, I'll cut this one open and repair the crushed area bringing it back to original form and weld it back together:
Boy a good shop cleaning would be in order. I got so much crap piled in so many places it's difficult to find what's needed sometimes.
I have a little stand around here I built from channel and metal casters with one of the casters driven by hydraulic motor which is variable speed. It works very well for welding seams in tanks and generates very linear welds putting the end bells back into tanks.
Nope, just more places posting crap they don’t actually have.
1693TA
Senior Member
Yep, decals only go so far but when you have the same employees long term it's usually not a problem. I usually stencil Hydraulic Oil Only in yellow on the tanks afterward if used in that application. Blast and paint the filler caps bright yellow also.
crane operator
Senior Member
8" x 29" but the clips push them to 32". Probably 28-29" at the tank. Probably be into the driveline?
www.fleetpride.com
Vander Haags has three of them, but they look like they may be rustier than what you have.
www.vanderhaags.com
I sure hope the pictures of the hydraulic tank projects has helped in your search. Want me to post some pics of the alternator I fixed last week?
Salesforce B2B Commerce
Vander Haags has three of them, but they look like they may be rustier than what you have.
Kenworth T370 Air Tank for Sale
Kenworth T370 Air Tank for sale. Enjoy our hassle-free online checkout or call to speak to an expert.
I sure hope the pictures of the hydraulic tank projects has helped in your search. Want me to post some pics of the alternator I fixed last week?
I believe the point is that the old air tanks can very likely be rebuilt if need be8" x 29" but the clips push them to 32". Probably 28-29" at the tank. Probably be into the driveline?
Salesforce B2B Commerce
Vander Haags has three of them, but they look like they may be rustier than what you have.
Kenworth T370 Air Tank for Sale
Kenworth T370 Air Tank for sale. Enjoy our hassle-free online checkout or call to speak to an expert.
I sure hope the pictures of the hydraulic tank projects has helped in your search. Want me to post some pics of the alternator I fixed last week?
Truck Shop
Senior Member
Or just go buy the oem--weren't going to take that money with you anyway. I love watching
stepping over five to pickup---.
stepping over five to pickup---.
I’m not currently stepping over anything. I’m more than willing to spend what it takes to fix it but I’m also not ignorant to other peoples experiences and opinions which is why I put it out there. I specifically thought you might be able to offer a source with the experience you have. Used isn’t an option as long as new is available, repairing what I have is a last resort as I don’t have down time to spare. Nearly equivalent aftermarket is what I was searching for, I’ll probably just buy OEM if I can’t accomplish that.
Truck Shop
Senior Member
It's an air tank for sh!t sake-what does a air do besides hold air? It rots.-In my years I have never found
a true fit aftermarket air tank replacement for anything. I found out years ago when it comes to trucks
you can waste allot of time and labor trying to make fit or just buck up.
1693TA
Senior Member
I still have a couple of R model Mack fuel tanks on a shelf with one being repaired and ready to install. Used to see these things often and being around them so much they were always either donated for rebuild rather than scrap, or one of my rebuilds was installed and the defective taken in as a "core". Usually rusted under the straps so cut the end bells free, have the center section rolled to diameter and put them back together. Several continue to be run.
I found it a great way to keep a couple of guys off the unemployment roles when times were slow, or work lacking in the short duration.
Truck Shop
Senior Member
Yeah yeah yeah.
crane operator
Senior Member
I couldn't find anything else in 8" with that length. If the oem can get them, it looks like that's the route.
The only other thing I came up with was https://www.hoosiertank.com/
They are local to you in indiana. They make a 8" tank, just not in your length. Might be worth a phone call.
The only other thing I came up with was https://www.hoosiertank.com/
They are local to you in indiana. They make a 8" tank, just not in your length. Might be worth a phone call.