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
EV46474ALTS
In stock · ships from Knoxville
This is a long-radius, 90-degree aluminum emergency valve (often called a belly valve) with an external air cylinder, designed for DOT‑regulated 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
Long-radius elbow; verify flange bolt pattern matches tank sump. External air cylinder with 1/8" NPT port and fusible plug. Designed to meet TTMA RP86 and 49 CFR 178.345-8.
Part data verified against 4 catalog sources
Different year, make, or config? Get a confirmation against your truck in under a minute.
It bolts to a 6‑inch sump flange on the bottom of the tank and has a 4.5‑inch grooved outlet. During normal loading or unloading, air pressure holds the valve open; if the air supply is lost—such as in a rollover, collision, or fire—the valve automatically slams shut to prevent product loss. It’s built for chemical and fuel haulers that need high flow, and the shear section is tested to break cleanly without leaking when the piping is torn away.
Part Number: EV46474ALTS
6'X4-1/2' L/R AIR OPER BELLYVALVE $543.31
Unit: ea
Dealer: Post Onsite
Compatibility, alternatives, and more
