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NEWSTAR part description

Product Description

Features & Benefits

  • Automatically releases excess air pressure at a preset level
  • Valve resets and seals off system once pressure drops to a safe level
  • Made of premium quality materials for durability and long life
  • Meets or exceeds vehicle manufacturer requirements for heavy duty air brake systems
  • Manufactured, assembled, and packaged in-house at ISO-certified facilities

Newstar Air Brake Safety Valve

The Newstar air brake safety valve is designed to prevent the air brake reservoir from bursting from overpressure. Its design and engineering matches original equipment specifications.

Product Attributes

Adjustable No
Inlet Ports 1/4 NPT Thread
Notes Low Profile for Air Dryers
Opening Pressure 150 PSI
Preset 150 PSI
Replacement For Bendix ST-4

Part Interchanges

Based in Schaumburg, IL, NEWSTAR® is an aftermarket parts manufacturer specializing in trailer suspension, engine, and drivetrain parts and components for medium and heavy duty trucks. The company supplies OEM manufacturers, truck dealerships, and warehouse distributors across the U.S. and Canada. NEWSTAR products are made of high-grade stamped steel, natural rubber, and other materials and hand-welded, resulting in an unprecedented level of quality down to the smallest detail. All products are also built and assembled using cutting-edge tools and undergo intense performance testing in an in-house quality control laboratory to ensure compliance with industry standards. 
NEWSTAR S-E859 Cross Reference

We have 6 alternatives for the S-E859 by NEWSTAR:

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