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PV2 - GM # 25509419 Replacement Disc Drum Combination Valve, Cars, Trucks, SUV's

PV2T (172-1353)
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Product Description

Universal GM Brass Disc Drum Proportioning Valve 


  •      Brass Disc Drum Valve, Exact Copy of Original GM # 25509419 or AC Delco 172-1353
  •     Tool helps bleed your prop valve correctly!
  •     Part is in stock, we do not drop ship
  •     We Ship Fast! In Most cases within the next day!!
  •     Instructions are available or can be review on photo # 3 of our listing
    (2) 3/8-24 ports for front left and right caliper and (1) 9/16-18 port for the rear brakes 1/2-20" & 7/16-18" ports in from the master cylinder.
    This is a universal valve it will work on any vehicle as long as you can hook it up. You may need to block off one of the front ports.
Will also fit trucks but will need to block off one of the out puts. If you need the part for GMC/GM trucks please look in our store for the correct valve that comes with the plug.


The perfect compliment to your disc/drum brake setup. This combination valve (also known as a proportioning valve)  regulates the flow of fluid from rear to front, helping to keep your brakes from locking up and warning you if there is ever a system failure.

Other Details

AC Delco: 172-1353:
GM: 25509419

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Product Reviews

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  1. Prop valve 4 Star Review

    Posted by on May 14th 2018

    My review is based on looks as I have not installed valve yet. It seems well made, threads look good shipping was quick. I was surprised it was made in China. Bleeder tool was a nice touch.