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.
Betts Industries · Fuel System
19017BU
In stock · ships from Knoxville
This is a replacement seat disc for 4-inch Betts flat seat emergency valves, commonly found on cargo tank trailers.
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
Verify that your valve is a 4-inch Betts flat seat model. This disc is for the Buna urethane seal material option; viton versions use part number 19017VT. Fits air-operated and cable-operated variants.
Part data verified against 4 catalog sources
Different year, make, or config? Get a confirmation against your truck in under a minute.
The disc is made from Buna urethane, providing a resilient seal to prevent product leakage when the valve is closed. Over time, the disc can wear or become damaged, leading to drips or weepage from the valve; replacing the disc is a standard maintenance procedure to ensure safe and leak-free operation.
Part Number: 19017BU
4 SET DISC FOR BETTS FLAT DISC EMERGENCY VALVE
Unit: ea
Dealer: Post Onsite
Compatibility, alternatives, and more
