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Old 09-18-2022, 03:36 PM   #1
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Ride height valve

Anyone got a part # for the front ride height valves? Can they be rebuilt?
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Old 09-18-2022, 08:21 PM   #2
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All I have to offer is how I got mine working again, it was leaking air. I removed the compressed inlet line and added a couple drops of air tool oil. after working it a few times it began operating properly-stopped leaking.
The "O" rings get too dry to slide properly is my conclusion. DO NOT use ordinary oil, additives may cause the "O" rings to swell.
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Old 09-18-2022, 08:41 PM   #3
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Mine works fine, just leaks. Will hold the coach up for a day before it sits down. Don’t wanna mess with it until I know I can order a replacement if needed.
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Old 09-18-2022, 08:41 PM   #4
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The valve I use on my 2006 is a Haldex 90554945. I know an Alpine owner that has rebuilt one but I think eventually it failed again. Maybe he will chime in.
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Old 09-20-2022, 07:16 PM   #5
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Are there part numbers on the valve if I pull it off?
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Old 09-20-2022, 09:48 PM   #6
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No number as I recall in the valve. I think there is a Neway service/ parts manual in the Alpine Library. I can get you the number later this eeek when I go out to my coach storage unit. Otherwise someone else may have the number.
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Old 09-21-2022, 07:09 AM   #7
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From past research on this I think earlier coaches used a Haldex 90054007. From your picture it looks like this is the one you have. This valve is in the "CR" series (controlled response) of Haldex valves and has a damper built into it so it delays the air flow response time a bit. Later coaches used the "PR" series (precision response) that has no delay in adjusting air flow. 90554945 is the number for later coaches and has female NPT ports for inlet and outlet. It does not have an exhaust port anymore. The exhaust air comes out around the pivot arm shaft.
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