Description
Product Overview
The waltyotur Brake Proportioning Valve is engineered for heavy‑duty trucks, offering a 1/4 NPT metal construction that ensures superior thermal stability and precise brake pressure distribution. With a part number 800516, it matches OEM specifications for Peterbilt 377 and Western Star models, providing a seamless fit and reliable operation. The valve operates at 379 volts and supports a 150 psi rating, delivering consistent performance in demanding conditions.
Usage
Designed for commercial trucking fleets, this valve is ideal for brake system repairs, upgrades, and routine maintenance on long‑haul and regional trucks. Its sturdy metal design withstands high temperatures, making it suitable for heavy loads and frequent stop‑and‑go traffic. 
Why Choose Us
Our valve offers identical appearance to OEM parts while providing enhanced durability through high‑quality materials and rigorous testing. The long service life reduces downtime, and the straightforward installation minimizes labor costs. Backed by a 4.2‑star rating from verified customers, this component ensures confidence in safety‑critical applications.
Key Features
- Precision 1/4 NPT fitting for quick, tool‑free installation
- Robust metal housing delivers excellent thermal stability
- 150 psi rating ensures reliable brake pressure control
- Direct OEM replacement for Peterbilt 377 and Western Star trucks
- Long‑lasting durability reduces maintenance intervals
FAQ
Is this valve compatible with all Peterbilt models?
The valve is specifically designed for Peterbilt 377 and compatible Western Star trucks. Verify your vehicle’s part number before purchase.
Do I need additional tools to install the valve?
Installation requires standard hand tools for removing the old valve and securing the new 1/4 NPT connection; no specialized equipment is necessary.
What is the warranty period for this product?
waltyotur provides a one‑year limited warranty covering manufacturing defects and material failures.
Can this valve be used in brake systems with higher pressure requirements?
The valve is rated for up to 150 psi, which meets the specifications of most heavy‑duty truck brake systems. For higher pressures, consult a professional.
How does the metal construction improve performance?
The metal body resists heat deformation, maintaining consistent brake modulation even under prolonged heavy braking, thereby enhancing safety and component lifespan.
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