NEWSTAR part description

This Safety Valve (St-4) will fit below Engine applications:

  • Bendix NS750 Engines

Product Description:

  • Replacement for Bendix ST-4™

Specifications:

Ports: 1/2 NPT
Weight: 0.15 lbs.
Series: ST-4

Features & Benefits

  • Available in both adjustable (ST-1) and non-adjustable (ST-3 and ST-4) styles.
  • The safety valve protects the air brake system against excessive air pressure buildup.
  • It must be installed in the same reservoir to which the compressor discharge line is connected.

Product Description

Safety Valve (ST-4)

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
Pressure Rating 250 PSI
Engine Applications Bendix NS750 Engines
Notes Low Profile, Compressor Applications
Port 1/2 NPT
Replacement For Bendix ST-4"

Part Interchanges

NEWSTAR S-C645 Cross Reference

We have 8 alternatives for the S-C645 by NEWSTAR:

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.
 

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