POWERWORKS PV2 Brass Proportioning Valve for Front Disc / Rear Drum Brakes 172-1353 — Solid Brass, Dual-Reservoir Compatibility

The POWERWORKS PV2 172-1353 is a solid-brass combination proportioning valve engineered to balance fluid pressure between front disc and rear drum brakes for dual-reservoir master cylinder systems.

This compact, heavy-duty proportioning valve provides consistent brake biasing for vehicles that use a front disc / rear drum braking setup. Designed as a universal PV2 unit, it accepts common brake line fittings and installs in-line with most dual-reservoir master cylinders. Built from solid brass for corrosion resistance and long life, the 172-1353 offers a reliable, service-friendly way to control rear brake pressure and reduce premature lockup under heavy braking.

How does the PV2 valve improve braking balance?

The PV2 proportioning valve reduces rear brake hydraulic pressure relative to the front to help prevent rear wheel lockup during hard stops. By adjusting the distribution of force between axles, it helps maintain vehicle stability while preserving braking effectiveness.

• Automatically limits rear-line pressure for disc/drum systems.
• Reduces tendency for rear wheel lockup in aggressive braking.
• Works with most dual-reservoir master cylinders for broad compatibility.

What fittings and connections does it use?

The PV2 172-1353 accepts standard brake line fittings, with ports sized 1/2" and 7/16" to match common steel or braided brake hoses. That makes it simple to integrate into many vehicle brake systems without custom adapters.

• Brake line ports: 1/2" and 7/16" sizes for standard hoses.
• Threaded ports compatible with common brake fittings and adapters.
• Clear labeling reduces installation mistakes at the lines.

Why choose a solid-brass proportioning valve?

Solid brass construction offers excellent corrosion resistance and mechanical durability compared with lower-grade materials. That longevity translates to fewer replacements and dependable hydraulic performance, especially in environments exposed to moisture or road salt.

• Brass resists rust and electrochemical corrosion better than many alloys.
• Durable body supports repeated line connections and disconnections.
• Stable under temperature changes for consistent brake feel.

How easy is it to fit the PV2 to my vehicle?

Installation is straightforward for anyone familiar with brake-line plumbing and bleeding procedures. The PV2 is intended as a universal replacement for disc/drum proportioning needs and fits most dual-reservoir master cylinders; basic hand tools and a proper brake-bleeding process are required.

• Designed for dual-reservoir master cylinder systems; many direct-fit scenarios.
• Works on a wide range of vehicles, including many Chevy models.
• Simple in-line installation with standard brake fittings — bleed lines afterward.

Who is this for: The POWERWORKS PV2 172-1353 is suited for mechanics, restoration builders, and DIY enthusiasts who need a dependable, universal proportioning valve for disc-front/drum-rear brake systems. If you want a corrosion-resistant, serviceable valve that accepts common fittings and fits most dual-reservoir master cylinders, this brass PV2 unit is built to deliver long-term reliability and straightforward installation without custom fabrication.