Dorman - HD Solutions Fuel Filter Housing P/N:904-7913
Dorman 904-5515 atomization module air drier filter mount kit for the 2008-2013 Mack MRU 6-cylinder 10.8L, the 2009 MRU 6-cylinder 12.8L, the 2011-2013 MRU 6-cylinder 8.9L, the 2012-2013 MRU 6-cylinder 12.8L and other vehicles dries moisture-laden compressed air before it can damage the atomization module. This retrofit adds a water extraction step for waste collection trucks and other heavy-duty vehicles on stop-and-go routes.
A leaking hose or fitting, or moisture getting past the dryer, can mean this kit is worn. DPF clogging and aftertreatment warning lights can also come from the diesel particulate filter itself or the diesel fuel injector driver module, so find the cause before replacing anything.
The kit also fits the 2008-2013 Mack LEU 6-cylinder 10.8L and the 2011-2013 LEU 6-cylinder 8.9L. This listing is one kit, and the 2012-2013 Mack MRU 6-cylinder 12.8L takes one.
Fit and size
Build and materials
One filter housing, one mounting bracket, one hose, three fittings and hardware.
Interchange: 85142806
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
Does the Dorman 904-5515 kit fit a 2011-2013 Mack LEU 6-cylinder 8.9L?
Yes. Dorman 904-5515 fits the 2011-2013 Mack LEU 6-cylinder 8.9L, and it also fits the 2008-2013 Mack LEU 6-cylinder 10.8L.
Does the 904-5515 kit include the hose and fittings, or only the filter housing?
Yes. The kit includes one filter housing, one mounting bracket, one hose, three fittings and hardware. No desiccant cartridge appears in the contents list.
What size is the hose in the Dorman 904-5515 air drier filter kit?
The Dorman 904-5515 hose is 917 mm long, with a 12.6 mm outside diameter and a 9.4 mm inside diameter. The kit's inlet and outlet are both 0.25 in.
Are the desiccant cartridges for this air drier filter mount kit hard to find?
No. The kit uses widely available replaceable desiccant cartridges, the same type used in an air brake dryer system.
Why would a waste collection truck need this atomization module air drier kit?
Stop-and-go running rarely gets exhaust hot enough for passive regens, which can mean DPF clogging and parked regens. This kit adds a water extraction step to the compressed air feeding the atomization module.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.