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M939/LMTV/FMTV Air dryer replacements/upgrades

SCM35A2

SCM35A2

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CNC2013

CNC2013

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Guys I just installed my SKF Turbo 2000 over the weekend. Works great but I am thinking the Air Dryer mounts might be different between trucks as mine was not a direct bolt on. Here is what happened: Had to drill 2 more holes as the mounting bracket holes are narrower than the stock holes. I needed to get some fittings as only one actually worked was the 1/2 elbow to from dryer to Wet Tank. Here is a quick list of fittings needed: (1) 1/4" to 1/8" reducer for line from Governor (little line), (1) 3/8" pipe plug (To plug the Purge port), (1) 1/2 to 1/2" female to female adapter (For Inlet), (1) 1/2" female to male (for inlet). I had to flip the mount from front to rear so I wouldn't have to make a longer inlet line. My line going from the wet tank to the dryer was about 1.5" too short so I needed to make another one. All in all, I am very happy and was not a very hard install once the fittings were figured out. Hope this helps everyone looking to make the change.
 

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bachman502

bachman502

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Pardon my ignorance, but what are the advantages from going from the haldex pure dryer to the haldex purest dryer? Are parts just getting harder to get on the older air dryers? Thanks
 
Last edited:
L

Lifeson

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Hi, simp5782 I think you can help me: can the Haldex air dryer with the code N50011K be mounted on the LMTV M1078 A0?
Thanks
 
jmenende

jmenende

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Howdy. Im in the market for an air dryer for my lmtv. My unit came without the dryer so im out of commision for now. Skf brakemaster 2000 is preffered but ebay is all out. Anyone have a spare to sell?
 
simp5782

simp5782

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jmenende said:
Howdy. Im in the market for an air dryer for my lmtv. My unit came without the dryer so im out of commision for now. Skf brakemaster 2000 is preffered but ebay is all out. Anyone have a spare to sell?
Click to expand...
Use an AD9 air dryer. It's common commercial

www.ebay.com

Air Dryer-12 VOLT 12V-AD-9 AD9 Assembly Replacement for Bendix 065225/109685 | eBay

<li> Note:</li> <li>Please don't assume. Ask before you bid/buy if you have any questions. - Please do not expect anything else besides what you see in the pictures. - Check our feedback and buy with confidence.</li> <li>For Alaska, Hawaii, Puerto Rico, Guam,Virgin Islands and Samoa, extra...
www.ebay.com



Not sure if the heater is 24v or not if it is then you will have to swap the heater unit

www.ebay.com

MOHAWK MANUFACTURING 24V PURGE VALVE FOR BENDIX AD-9 AIR DRYER~G1012638-1 | eBay

Find many great new & used options and get the best deals for MOHAWK MANUFACTURING 24V PURGE VALVE FOR BENDIX AD-9 AIR DRYER~G1012638-1 at the best online prices at eBay! Free shipping for many products!
www.ebay.com
 
jmenende

jmenende

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simp5782 said:
Use an AD9 air dryer. It's common commercial

www.ebay.com

Air Dryer-12 VOLT 12V-AD-9 AD9 Assembly Replacement for Bendix 065225/109685 | eBay

<li> Note:</li> <li>Please don't assume. Ask before you bid/buy if you have any questions. - Please do not expect anything else besides what you see in the pictures. - Check our feedback and buy with confidence.</li> <li>For Alaska, Hawaii, Puerto Rico, Guam,Virgin Islands and Samoa, extra...
www.ebay.com



Not sure if the heater is 24v or not if it is then you will have to swap the heater unit

www.ebay.com

MOHAWK MANUFACTURING 24V PURGE VALVE FOR BENDIX AD-9 AIR DRYER~G1012638-1 | eBay

Find many great new & used options and get the best deals for MOHAWK MANUFACTURING 24V PURGE VALVE FOR BENDIX AD-9 AIR DRYER~G1012638-1 at the best online prices at eBay! Free shipping for many products!
www.ebay.com
Click to expand...
Im not going to connect the heater. Im in PR and its always hot. 😅
Thanks for the help, im trying to get this rig rolling.
 
Iron Moose 5 Ton

Iron Moose 5 Ton

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Grantville PA
Good evening. I am in the process of replacing the air dryer on my volunteer fire departments brush truck (M923A1). I had a shop replace my air dryer a few years ago and they used a WABCO 1200 series. My truck is stored about 35 minutes from where I live so I cant look at my current unit. I am tied between finding a SKF Brakemaster 2000 but they seem hard to find or going with the Haldex or an AD-9. I found a link for this Hadlex in stock. Would this be a proper unit for our trucks? What is the deal with the Holset compressors? Our trucks have a Holset compressor? Any and all help is appreciated.
(Both my truck and the fire department brush trucks are M923A1's running 14's super singles)

Haldex Unit I found:
www.anythingtruck.com

Haldex DA34200 12-Volt PURest Air Dryer, For Holset E-Type Compressors

Check out the deal on Haldex DA34200 12-Volt PURest Air Dryer, For Holset E-Type Compressors at AnythingTruck.com
www.anythingtruck.com

SKF I found but had to email them for availability:

AD9 I found and believe would be the proper unit: (Could only find the extended purge one that was a new unit and not re-manufactured)
www.anythingtruck.com

Bendix 065227 AD-9EP Extended Purge Air Dryer, 3/4" NPT, 24V (Special Order)

Check out the deal on Bendix 065227 AD-9EP Extended Purge Air Dryer, 3/4" NPT, 24V (Special Order) at AnythingTruck.com
www.anythingtruck.com

WABCO unit I think I would be proper if I choose this route:
www.anythingtruck.com

WABCO 4006110510 1200 System Saver Air Dryer, 24-Volts, Formerly Meritor R955206

Check out the deal on WABCO 4006110510 1200 System Saver Air Dryer, 24-Volts, Formerly Meritor R955206 at AnythingTruck.com
www.anythingtruck.com
(I can only use this unit if I have access to drill and tap a hole for a certain thread? which I do not have the ability to do this)

Any and all assistance is very much appreciated. Thanks

( @simp5782 )
 
simp5782

simp5782

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Iron Moose 5 Ton said:
Okay, Thanks. Is this unit okay then? Does the extended purge have any negative effect? I really appreciate the assistance.
www.anythingtruck.com

Bendix 065227 AD-9EP Extended Purge Air Dryer, 3/4" NPT, 24V (Special Order)

Check out the deal on Bendix 065227 AD-9EP Extended Purge Air Dryer, 3/4" NPT, 24V (Special Order) at AnythingTruck.com
www.anythingtruck.com
Click to expand...
Go with this

www.ebay.com

AIR DRYER - 24 VOLT 24V - AD-9 AD9 STYLE | eBay

Live Phone Tech Available. Need Help Before, During or After Installation?. REPLACES Mack: 745-065224. REPLACES Euclid: B-BN065224N.
www.ebay.com
 
Iron Moose 5 Ton

Iron Moose 5 Ton

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Grantville PA
Okay. Thank you very much for the assistance. So for the M923A1 is the truck a Holset style compressor or no? That link you posted does not say if its compatible with E-Holset compressor's or not. I am under the impression I need a Holset compatible dryer. (ie 4 line dryer with positive back pressure, compared to a 3 line dryer).
 
simp5782

simp5782

Feo, Fuerte y Formal
Supporting Vendor
12,125
9,383
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Location
Mason, TN
Iron Moose 5 Ton said:
Okay. Thank you very much for the assistance. So for the M923A1 is the truck a Holset style compressor or no? That link you posted does not say if its compatible with E-Holset compressor's or not. I am under the impression I need a Holset compatible dryer. (ie 4 line dryer with positive back pressure, compared to a 3 line dryer).
Click to expand...
You only need a 3 line dryer. Inlet. Outlet. Purge. It'll work ive ran em for years.
 
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