Alright folk as we know of the air dryers a lot of these trucks have is the Pure Air types from years past and the overall surplus market came out with the Purest Air Dryers and alot of us upgraded to that which is an overall good dryer I noticed. It is around the same size as the original Air Plus dryer and is nearly a direct replacement of the stock 939 series dryer. You do have to drill new bolt holes in the mounting plate on the cross member though for the new 3 bolt triangle pattern
You can go back with the replacement Haldex Air Plus Dryer Part # DA33110X and can be found on ebay or thru a Haldex retailer.
The Purest Air Dryer is part # N50011K or DA34110 - They are still on the market mostly in a 12v heater version but the heater from your Air Plug dryer on the original truck will just transfer over. These are getting harder to come by and like anything else low supply means a high price. Repair kits and filters are available commonly for these. The new filter is around $100.
You can upgrade to a Wabco 1200 series saver unit like i did in the past. This is a smaller unit. About 1/3 the size of the Pure Air and the Purest Dryers. It however has SAE port sizes do you would need adapters to run your air fittings from your air dryer that is currently on the truck. They also do not come with a heater alot of times for the purge valve so you would have to add that. These units DO have a air governor on them and has a blocked off Purge Valve Signal port. You would have to drill the block out of the dryer and tap the port for a pipe thread to go in it. Kind of a drawback but it is a alternative. They are cheap in the $50 to $100 range. They are small and light so if you have added accessories under your truck they can fit anywhere really. They are also really light. Replacement filters for these can be had for around $12 to $50 depending on where you need to buy one. You can find my modification thread here : https://www.steelsoldiers.com/showt...abco-Series-1200-Air-Dryer-Install&highlight=
There are a few other upgrades/replacements i have stumbled across. The most direct swap I do believe for the best cost is going to be the SKF BrakeMaster Turbo 2000. I have purchased a couple of these units and will include a write up on an install when I get it done. These units are nice, compact, fairly light and have a long service interval. They have a 12 or 24v option heater that comes with a wire harness plugin and Packard connectors. So you would have to splice your power wire on the frame rail and add a ground. These units do have their own mounting bracket so bolting to the existing plate or cross-member should be fairly easy. These dryers have a purge line adapter already set up on them and have normal pipe thread ports. They can also handle a higher duty cycle compressor for a truck that may be working harder. They list a truck with CTIS should use the Dual turbo system but it is fairly costly. Their total repair and rebuild kit for it is around $350. with a used dryer system costing around $150. New single style Turbo 200 Dryers are in the $100 to $200 range. Replacement cartridges for the single Turbo 2000 dryer is around $40. These units are found on ebay or thru TruckPro I added the pics of the SKF unit and their product brochure is here : http://www.skf.com/binary/79-147914/457969.pdf
I will be posting up a few other alternatives that are common and on the market for reasonable prices. You have to understand that the older AD9 and Pure Air systems are mostly just old stocks and are rather costly. So going over to commercial truck parts may be expensive for the new part. However finding some items with the 24v heaters will not be easy in the commercial world.
You can go back with the replacement Haldex Air Plus Dryer Part # DA33110X and can be found on ebay or thru a Haldex retailer.
The Purest Air Dryer is part # N50011K or DA34110 - They are still on the market mostly in a 12v heater version but the heater from your Air Plug dryer on the original truck will just transfer over. These are getting harder to come by and like anything else low supply means a high price. Repair kits and filters are available commonly for these. The new filter is around $100.
You can upgrade to a Wabco 1200 series saver unit like i did in the past. This is a smaller unit. About 1/3 the size of the Pure Air and the Purest Dryers. It however has SAE port sizes do you would need adapters to run your air fittings from your air dryer that is currently on the truck. They also do not come with a heater alot of times for the purge valve so you would have to add that. These units DO have a air governor on them and has a blocked off Purge Valve Signal port. You would have to drill the block out of the dryer and tap the port for a pipe thread to go in it. Kind of a drawback but it is a alternative. They are cheap in the $50 to $100 range. They are small and light so if you have added accessories under your truck they can fit anywhere really. They are also really light. Replacement filters for these can be had for around $12 to $50 depending on where you need to buy one. You can find my modification thread here : https://www.steelsoldiers.com/showt...abco-Series-1200-Air-Dryer-Install&highlight=
There are a few other upgrades/replacements i have stumbled across. The most direct swap I do believe for the best cost is going to be the SKF BrakeMaster Turbo 2000. I have purchased a couple of these units and will include a write up on an install when I get it done. These units are nice, compact, fairly light and have a long service interval. They have a 12 or 24v option heater that comes with a wire harness plugin and Packard connectors. So you would have to splice your power wire on the frame rail and add a ground. These units do have their own mounting bracket so bolting to the existing plate or cross-member should be fairly easy. These dryers have a purge line adapter already set up on them and have normal pipe thread ports. They can also handle a higher duty cycle compressor for a truck that may be working harder. They list a truck with CTIS should use the Dual turbo system but it is fairly costly. Their total repair and rebuild kit for it is around $350. with a used dryer system costing around $150. New single style Turbo 200 Dryers are in the $100 to $200 range. Replacement cartridges for the single Turbo 2000 dryer is around $40. These units are found on ebay or thru TruckPro I added the pics of the SKF unit and their product brochure is here : http://www.skf.com/binary/79-147914/457969.pdf
I will be posting up a few other alternatives that are common and on the market for reasonable prices. You have to understand that the older AD9 and Pure Air systems are mostly just old stocks and are rather costly. So going over to commercial truck parts may be expensive for the new part. However finding some items with the 24v heaters will not be easy in the commercial world.
Attachments
Last edited:
