172-1353 AC Delco Reproduction Proportioning & Combination Valve

AC Delco Reproduction 172-1353 Disc/Drum Combination Proportioning Valve

Universal GM Truck & Car · Disc/Drum · Brass · ½ Ton to 1 Ton · FREE Bleeder Tool Included

Your front disc brakes and rear drums need different amounts of pressure to stop straight and safe. This brand-new AC Delco reproduction 172-1353 combination valve handles it for you. It balances brake pressure between the front and rear to help keep your rear brakes from locking up, and it warns you if there's ever a brake system failure.

Built in brass and made to fit nearly any GM truck with front disc and rear drum brakes, from ½ ton all the way up to 1 ton, it's a great fit for your classic truck. Every valve comes with a FREE prop valve bleeder tool, so you can bleed it right the first time.

See It Up Close

What's Included

• AC Delco Reproduction 172-1353 Disc/Drum Combination Proportioning Valve, brass
• Front Outlet Port Plug (37F37KKC), for blocking off one front port on trucks
• FREE Prop Valve Bleeder Tool

Port Specs

Why Buy This Valve

• ✔ Brand new AC Delco 172-1353 reproduction, not rebuilt
• ✔ Balances front-to-rear pressure to help prevent rear brake lockup
• ✔ Built-in failure warning alerts you if a brake circuit fails
• ✔ Universal disc/drum fit for ½ ton through 1 ton GM trucks
• ✔ Brass construction
• ✔ FREE bleeder tool so you bleed the valve correctly the first time
• ✔ Plug included for truck applications

Fitment

Works on nearly all vehicles with front disc and rear drum brakes. Not sure if it fits yours? Call us at 866-601-4455 before ordering.

Before You Order: Please Read

Brake System
This valve is for disc/drum systems (front disc, rear drum) only. It is not for disc/disc or drum/drum setups.

Truck Applications
Trucks typically use one front output. Block off the unused front port with the included plug.

⚠️ Installation Notes

• Use the bleeder tool: Install the included bleeder tool on the valve before bleeding. It holds the valve open so fluid can reach both the front and rear brakes. Remove it when you're done.
• Use fresh fluid: Use fresh DOT 3 or DOT 4 brake fluid.
• Check for leaks: After bleeding, check every fitting for leaks.
• Test drive: Test the brakes at low speed in a safe area before driving.

Free Tech Support

Every order comes with free tech support before and after your purchase.

• Call: 866-601-4455
• Monday–Friday, 8:00 AM – 4:00 PM EST
• Limited weekend availability

We're happy to help make sure this valve is right for your vehicle.

Stop straight. Stop safe. Order your 172-1353 disc/drum proportioning valve today and get the bleeder tool FREE!

Questions? Call 866-601-4455