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.

EBW / Franklin Fueling · Air System
88025601
In stock · ships from Knoxville
The 88025601 is a six-way air interlock valve with a button actuator, designed for tank trailers that carry crude oil or gasoline.
Confirm the part fits before you buy. Applications and interchange numbers are researched and audited per part.
Verified fitment for 2 applications
Add your truck to see whether it's one of them
All confirmed applications for this part number.
Other applications
Other applications
Installed on trailers equipped with air-operated vapor recovery valves and spring brakes. The interlock ensures the vapor valve opens only when the trailer brakes are released.
Part data verified against 4 catalog sources
Numbers this part supersedes or interchanges with. Showing 1 of 1.
Different year, make, or config? Get a confirmation against your truck in under a minute.
It simultaneously controls two air systems: locking the trailer spring brakes while opening the air-operated vapor recovery valve, which prevents loading or unloading without brake engagement. The valve can be set up in normally open or normally closed configurations and is used to interlock the brake and vapor systems. It features an adjustable button stem, 1/4 inch NPT ports, and standard TTMA and API mounting holes. While the body is typically heat-treated, anodized aluminum, some sources list a brass construction. Replacement is required when the valve develops leaks, fails to seal, or the interlock function becomes unreliable.
Part Number: 88025601
6/WAY AIR INTERLOCK VALVE W/BUTTON
Unit: ea
Dealer: Post Onsite
Compatibility, alternatives, and more
Parts commonly needed alongside air system