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Aftermarket Replacement for

Oshkosh 121288B Height Control Leveling Valve

Price

$94.42

QTY


This item is NOT eligible for returns or cancellations
Part Number: 121288B

Type CR Controlled Response Height Control Valve
All ports are 1/8in NPT.
Original equipment on many Trucks and Trailers
Automatically adds air to, or exhausts air from air suspension to maintain constant static design height.
Does not respond to short duration dynamic changes in axle position, thus reducing air consumption which extends compressor life and saves fuel.

Top Port Exhaust
Middle Port Air Spring
Bottom Port Supply

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Please note that we cannot guarantee fitment without a part number. Please submit a full mailing address and phone number when submitting a quote request.

Question:
3/30/25
I don't see where the ride height linkage attaches to the valve. Is this the correct replacement part for my coach?
Answer:
These parts are specifically designed for Motor freight trucks not buses.
Question:
5/15/23
2601 PIONEER DRIVEwhich port is supply which one to bags
Answer:
Top Port – Exhaust - Middle Port – Air Spring - Bottom Port - Supply
Question:
7/07/21
is your valve 1670556c set up with a port to dump the air
Answer:
No this one is Without Dump
Question:
4/16/21
Confirming this will fit my 2006 Freightliner xc motorhome chassis.Front driver-side installation.
Answer:
We cannot guarantee fitment without a part number. Please email info@mpparts.com with the part number and we will try to find your correct replacement!

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