SEALCO part description


Supply Port (NPT) 3/8"
Control Port (NPT) 3/8"
Reservoir Port (NPT) 1/2"
Delivery Ports (NPT) 3/8"

These valves release the spring brakes using supply line flow from the tractor. They are designed for spring brake priority operation. The built in control port prevents brake compounding.

Product Attributes

Control Port 3/8 in. NPT
Delivery Ports 3/8 in. NPT
Reservoir Port 1/2 in. NPT
Supply Port 3/8 in. NPT
Type Standard

Based in Phoenix, AZ, Sealco® designs and manufactures aftermarket brake and electrical components for commercial vehicles. It specializes in air and anti-lock brake parts and is consistently the leading low-cost producer of trailer air brake valves in North America. Sealco valves are well-recognized in the industry for their remarkable quality, with a patented zinc alloy construction that's pneumatically and submersion-tested to ensure zero leakage. This dedication to quality has made Sealco Commercial Vehicle Products the primary service provider authorized by Meritor WABCO to service and sell their ABS systems to trailer OEMs. Sealco products are also designed, engineered, and assembled in the U.S.A with warehouses in Indiana and Arizona to ensure products are shipped within 48 hours upon receipt of order.

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