Proportioning Valve with Line Fittings

The Wilwood adjustable proportioning valve represents the culmination of advanced engineering and design, offering unparalleled control and durability in a compact, lightweight package. This component is precisely engineered to allow for fine-tuned metering of brake line pressure to the rear wheels, which is critical for optimizing brake bias and maximizing stopping performance.

Constructed from a robust forged billet aluminum design and weighing a mere 5.2 ounces, the valve is built for strength and longevity for demanding applications. Its exceptional range allows for pressure adjustments from 150 PSI up to 1,200 PSI, providing the versatility required for diverse racing and high-performance street setups. With the ability to achieve a maximum line pressure decrease of 57%, this valve offers the most significant reduction capability of any currently available on the market, ensuring highly effective rear brake control.

Pressure is precisely managed via an adjuster knob featuring fine-thread tuning, allowing the user to make minute, repeatable changes to the pressure curve. It features two .25” side mounting holes spaced 1.00” apart for installation. The unit is designed with 1/8-27 NPT inlet and outlet ports and is supplied with two 1/8-27 NPT to 3/8-24 inverted flare female fittings, enabling straightforward compatibility with most domestic 3/16” hard brake lines.