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.

Sealco · Hydraulics
10200-1/2
In stock · ships from Knoxville
The Sealco 10200-1/2 is a one-way air check valve designed for heavy-duty truck and trailer air brake systems.
Confirm the part fits before you buy. Applications and interchange numbers are researched and audited per part.
Verified fitment for 1 applications
Add your truck to see whether it's one of them
All confirmed applications for this part number.
Other applications
Other applications
This check valve is used in air brake systems across various makes and models. Verify port size and thread type for your specific application.
Part data verified against 5 catalog sources
Numbers this part supersedes or interchanges with. Showing 11 of 11.
Different year, make, or config? Get a confirmation against your truck in under a minute.
It allows compressed air to flow in only one direction, from the inlet to the outlet, preventing backflow that could disrupt system operation. This valve is commonly installed in air lines between reservoirs and on control line (booster) valves. Replacement is typically required when the valve fails to seal, causing air leaks or pressure loss in the brake system.
Part Number: 10200-1/2
CHECK VALVE
Unit: ea
Dealer: Post Onsite
Compatibility, alternatives, and more