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PV4 Brake Proportioning Valve Disc/Disc Brake System Combination Valve

Free shipping on orders over $29.99

$39.99

$ 18 .99 $18.99

In Stock

About this item

  • This PV-4 proportioning valve works on almost any classic truck, or muscle car, and nearly all vehicles that have disc brakes in the front and disc brakes in the rear
  • This proportional valve help you solve the rear lock up problem. This proportional valve / combination valve helps to distribute the pressure sent to the front and rear brakes proportionally, effectively preventing rear lockup
  • Has standard 9/16"-18 and 1/2"-20 fittings
  • The connections from the Master Cylinder are 1/2"-20 and 7/16"-24. This proportioning valve made of high-quality brass to ensure the durability, corrosion resistance and high-quality thermal conductivity of the product
  • Package include:1 Pcs Brass PV4 Brake Proportioning Valve Disc/Disc


This is a UNIVERSAL PV4 combination valve, Disc/Disc brake system combination valve, proportioning-combination valve in brass.
Our proportioning valve will work as left mount, right mount or bottom mount.The combination/prop valve has five connections.It has a 9/16"-18 connection for Rear Brakes & Dual 3/8"-24 ports for the front brakes .The connections from the Master Cylinder are 1/2"-20 and 7/16"-24.This proportional valve help you solve the rear lock up problem.
Under the protection of the brand, the quality of the goods is trustworthy. If you have any questions, you can contact us. We look forward to giving you the best shopping experience.


Collette Herman
2025-08-22 13:02:30
Had a major leak form my original. This one worked perfect and keeps the function of the brake warning light. It's not really a proportioning valve as the front and rear systems have separate reservoirs. What it does is both channels run through the block with a diaphragm between them. When one side runs out of fluid, the diaphragm moves triggering the brake warning light.
Ian Beitler
2025-08-03 13:47:18
Perfect fit. Well made. Included brake pressure switch
Eric Harris
2025-07-19 09:29:46
ABS module delete on an older vehicle with discontinued parts. Worked out perfectly
Mason
2025-07-17 12:49:56
Used on a 83 dodge w250 fixed my issues now have rear brakes again.
J
2025-06-08 13:11:01
fit great for my 1964 Chevrolet truck LS swap
Microtechs
2025-05-30 12:26:01
This thing immediately started leaking. At first I thought it was my fault so I removed and reinstalled the fitting straight and tight but still leaked. Replaced it with a different one and no leaks.
david
2025-03-20 17:05:51
I have a 1970 Chevy C10 and my proportioning valve was leaking. I have all wheel disc brakes from a conversion I did years ago. I started noticing a stain that went from small to big in a matter of a week. I purchased this proportioning valve and so far problem solved and no more stains on the floor.
Kindle Customer
2025-01-18 11:15:39
The angle front port not threaded completely to the bottom as the other ports are. I ordered a 2nd one and it had the same problem . To use it I had to grind off 1 thread of my flare nut so the tubing could tighten under the nut.
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