Product Overview
The WA65303 is a heavy-duty R-12 style relay valve designed for commercial air-brake systems on trucks and trailers. It features a ½″ NPT supply port, ¼″ NPT service port, and four 3/8″ NPT delivery ports for efficient distribution of air pressure to brake chambers.
Built to handle large volumes of air flow with minimal lag, this relay valve enhances brake responsiveness in aggressive duty cycles. Perfect for heavy-duty tractor-trailer, vocational units, and fleet replacement applications requiring durability and interchangeability with OEM systems.
REPLACES: 170.065303, 65303, 65303P, 745-065303, BW065303, R955065303X, S-17743
