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Old 05-31-2019, 12:43 PM   #1
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Tiffin Owners Club
Join Date: Jun 2008
Posts: 614
Looking for part number for the air dump valve connected to the "dump" on HWH control

we have an 03 Allegro Bus and have recently developed a leak on the air dump valve that's connected to the HWH jack system. The valve is located above the left front (driver's front) tire and has started leaking are constantly. Does anyone have a part number or know who I could contact (Freightliner? Tiffin? HWH?)

Here's a link to a picture (hopefully it works - let me know if it doesn't)

Let me know. Thanks,

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Old 05-31-2019, 10:30 PM   #2
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Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 18,532
Dump valve shows up on the air system diagram I got from Freightliner for my chassis .
So call the free help line with your chassis serial number and they will give you a P/N.
Have them sent you a pdf of your air system while you're on the phone. It's handy to have around.

99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
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air, hwh, valve

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