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🚗 Master your brakes, own the road with PV4 precision!
The PV4 Brake Proportioning Valve by POWERWORKS is a high-quality brass combination valve designed for disc/disc brake systems on classic trucks and muscle cars. It ensures proportional pressure distribution to prevent rear brake lockup, enhancing safety and control. Featuring versatile mounting options and standard threaded fittings, it offers durable, corrosion-resistant performance trusted by enthusiasts and professionals alike.
| ASIN | B096TTYR4N |
| Best Sellers Rank | #43,013 in Automotive ( See Top 100 in Automotive ) #3 in Automotive Replacement Brake Proportioning Valves |
| Brand | POWERWORKS |
| Brand Name | POWERWORKS |
| Connector Type | Threaded |
| Customer Reviews | 4.5 out of 5 stars 309 Reviews |
| Exterior Finish | Brass |
| Inlet Connection Size | 0.38 inches |
| Inlet Connection Type | Threaded |
| Manufacturer | Powerworks |
| Material | Brass |
| Material Type | Brass |
| Model Number | 749346322123 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Number of Pieces | 1 |
| Number of Ports | 3 |
| Outlet Connection Size | 0.38 inches |
| Outlet Connection Type | NPT |
| Size | PV4 |
| Thread Size | 9/16 inches |
| Thread Type | NPT |
| UPC | 749346322123 |
| Unit Count | 1 Count |
| Valve Type | Proportional Valve |
A**R
Does the job as advertized
Appears to be good quality. Doing the job it was meant to do.
J**T
Fits 82 Camaro Z28 Indy Pace Car
Fits and works correctly on my 82 Camaro Z28 Indy Pace Car
A**R
Fix the 1975 Corvette
It took a bit to get it plumbed it right with a 4 piston per caliper set up but work great now nice machine work to it
W**Y
good part
good price
D**Z
81 Caprice rear disc swap perfect fit.
Fit my 1981 caprice perfectly. I removed the stock 7.5 drum rear for a 94 caprice ppv 9c1 rear disc 8.5 and needed this for proper rear brake line pressure.
K**R
Disc brake conversion on your old beater?
Simple swap when doing rear disc brake conversion on classic cars. This disc/disc proportioning valve replaces the disc/drum valve that you started with. Bolts up the same and brake lines attach in the same place as on the old PV2 on the front cross member on your square body.
I**.
its quality
it wasn't the right one but it works fine, do your research before buying.
L**R
Inferior merchandise and lack of customer support.
Ordered this on 4/8/25 . Installed it within a week of receiving it and it has worked well since then. About two weeks ago I noticed some brake fluid on my driveway and checked it out. The insert on the side for the brake warning light is leaking like a seive. I don’t recommend any products from powerworks since they don’t even have a contact site for troubleshooting or anything. Don’t buy this product from them.
A**Y
No complaints
Perfect fit in my 88 Monte SS, was required when I did my rear disk brakes upgrade, and the stock brake lines matched right up to ports.
F**N
Faulty Brakr Part
This valve was faulty and I had to replace it with an original OEM product.
Trustpilot
1 week ago
3 days ago