Need help? We're here!
(888) 312-8812 Login SignupThe Newstar Air Brake Pressure Protection Valve is a PR-4-style component designed to safeguard the air supply within heavy-duty braking systems. This normally closed valve is preset to 85 PSI, ensuring that primary reservoir pressure is maintained before allowing air to flow to auxiliary or secondary circuits. Its 1/4-inch NPT ports allow for a direct-fit installation into standard truck and trailer air lines. By automatically closing if pressure drops below the setpoint, this Newstar 286500 valve prevents a total loss of air in the event of a downstream accessory failure.
| Brand | Part Number |
|---|---|
| MIDWEST TRUCK & AUTO PARTS | wa286500 |
Be the first to review this product!
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.
Be the first to ask a question about this product!
Optional. Please do not use your full name.
Minimum 10 characters, maximum 500 characters
You can upload up to 3 images to help illustrate your question. Supported formats: JPG, PNG, GIF, WebP
Please complete the reCAPTCHA verification to submit your question.
California residents see

