150 PSI Safety Protection - This ST-3 type safety valve is precision-set to a 150±8 PSI opening pressure, ensuring a rapid exhaust of excess air to maintain the integrity of your air tanks and brake lines.
Universal Heavy-Duty Compatibility - A direct replacement for Bendix 284143N. This valve also cross-references with Haldex KN31250, Meritor RKN31250, Mack 745-284143N, and Navistar/International BX284143N, making it an essential part for Freightliner, Kenworth, and Peterbilt systems.
Precision 3/8" NPT Threading - Designed for a perfect, leak-free "plug-and-play" installation. Features a 3/8-18 NPT inlet port that fits standard air tank configurations.
Corrosion-Resistant Brass - Engineered for the harsh conditions of long-haul trucking. Constructed from high-quality solid brass, this valve provides superior durability and rust resistance compared to cheap alloy alternatives. It is built to withstand road salts, moisture, and extreme vibrations without leaking.
All-Weather Performance Reliability - This valve is rated for extreme operating temperatures ranging from -40°F to 200°F (-40°C to 93°C), ensuring your air brake system remains safe and functional in any condition.