






🚦 Upgrade your brake game with brass precision – because your classic deserves the best!
The PV2 Brass Proportioning Valve (model 172-1353) is a high-quality, solid brass valve designed for disc/drum brake systems, primarily fitting GM Street Rods and classic trucks. It features dual-reservoir compatibility, standard 1/2'' and 7/16'' brake line ports, and meets ASTM, EPA, RoHS, and UL standards. Trusted by thousands, it ensures reliable brake balance and long-lasting performance.










| ASIN | B081Q6ZKCH |
| Best Sellers Rank | #14,622 in Automotive ( See Top 100 in Automotive ) #1 in Automotive Replacement Brake Proportioning Valves |
| Brand Name | POWERWORKS |
| Connector Type | Barb |
| Customer Reviews | 4.5 4.5 out of 5 stars (675) |
| Exterior Finish | Brass |
| Inlet Connection Size | 0.5 Inches |
| Inlet Connection Type | Barb |
| Manufacturer | Powerworks |
| Material Type | Brass |
| Model Number | 172-1353/172-1361 |
| Number of Pieces | 1 |
| Number of Ports | 2 |
| Outlet Connection Size | 0.5 Inches |
| Outlet Connection Type | Barb |
| Size | Valve |
| Specification Met | ASTM, EPA, RoHS, UL |
| Thread Size | 1/2 inch, 7/16 inch |
| Thread Type | National Pipe Thread (NPT) |
| UPC | 769135849792 |
| Unit Count | 1 Count |
| Valve Type | combination proportioning valve |
A**R
Good replacement
Great replacement, my truck is a 1979 k10 and the original valve was stuck causing my rear brakes to not work, I got this valve AND I got the thread in bleeder screw that goes in were the brake switch is so the brakes can be properly bled without the slide moving stoping flow to the front or rear, valve works good as new.
B**B
Correct one first time fits perfectly
Made well price was good fit right where it goes
O**E
Fits 1978 Chevy k20
Easy install, don’t forget to buy break fluid. Quality was better than I expected. I should have ordered a break bleed hand pump vac at the same time.
W**H
Disc/drum or disc/disc or drum /drum
Disc /drum or disc/disc easy to install on quality for a reasonable price.
J**R
Amazon will be the death of AutoZone.
Good luck finding one this cheap that works this well anywhere else.
B**R
Proportioning valve
Direct replacement, no problems
D**D
VALVE
THANK YOU. WORKS GOOD
M**.
Leaks and fails in less than 1 year
I started having problems with this unit 2 months after I installed it. First it started making a snapping sound after applying brakes. Then it's started dragging the front brakes. I even melted my original Buick Grand National center caps. It warped my rotors and melted the brake pads. Then it started leaking behind the black cover. This thing caused me so much money and caused me so much headache. I ended up getting one from a local parts store and it fixed all my issues. Never again with these cheap valves. I can't believe I drove my family in the car with that dangerous valve.
J**N
Everything was good
Trustpilot
1 month ago
1 month ago