Your cart is empty
Browse our catalog to find the parts you need.
These images are illustrative and may not match the product exactly. Always verify by part number — or confirm instantly with the assistant using a photo or VIN.
Paccar · Suspension & Steering
HV9990
In stock · ships from Knoxville
The HV9990 is a height control leveling valve with integrated dump, used in heavy-duty truck and trailer air suspension systems [peterbiltparts.com](https://peterbiltparts.com/products/peterbilt-height-control-leveling-vlalve-hv9990).
Confirm the part fits before you buy. Applications and interchange numbers are researched and audited per part.
Verified fitment for 12 applications
Add your truck to see whether it's one of them
All confirmed applications for this part number.
Freightliner
Kenworth
Peterbilt
Other applications
Freightliner
Kenworth
Peterbilt
Other applications
Vehicle compatibility list provided by retailer [partsfinderq.com](https://partsfinderq.com/products/hv9990-genuine-paccar-trailer-height-control-leveling-valve-with-dump); always verify fitment with your specific suspension configuration and model year.
Part data verified against 5 catalog sources
Different year, make, or config? Get a confirmation against your truck in under a minute.
It automatically adjusts air pressure in the suspension bags to maintain a consistent ride height under varying loads, and the normally closed dump port allows rapid air exhaust when coupling or uncoupling a trailer [partsfinderq.com](https://partsfinderq.com/products/hv9990-genuine-paccar-trailer-height-control-leveling-valve-with-dump). This is a genuine Paccar part commonly found on Peterbilt and Kenworth vehicles, but also listed for other makes. Replacement is typically required when the valve leaks, fails to hold ride height, or the dump function stops working.
Part Number: HV9990
HEIGHT CONTROL VALVE
Unit: ea
Dealer: Post Onsite
Compatibility, alternatives, and more
Parts commonly needed alongside suspension & steering
