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Proportioning Valve W/Bracket & Lines Chrome Undermount, Frame Mount, 1/2x20 & 9/16x18 Ports

CPP high-performance automotive parts for classic cars
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Part #
PVKU-APVDB-C
In Stock
$135.00
2 or 4 Wheel Disc, Chrome Aluminum, Undermount, Frame Mount, Gold Zinc Bracket, 1/2x20 & 9/16x18 Master Ports
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Prop 65 warning
The CPP Proportioning Valve W/Bracket & Lines (Part Number PVKU-APVDB-C) features a chrome aluminum build. It supports 2 or 4 wheel disc systems. Includes undermount and frame mount options. Comes with a gold zinc bracket. Equipped with 1/2x20 and 9/16x18 master ports.
More Information
Product Name Proportioning Valve W/Bracket & Lines Chrome Undermount, Frame Mount, 1/2x20 & 9/16x18 Ports SKU PVKU-APVDB-C
Material Aluminum Finish Chrome
Adjustable Yes Works With 2 Wheel Disc Yes
Works With 4 Wheel Disc Yes Bracket And Lines Included Yes
Brake Light Switch Included Yes Master Cylinder Line Size 9/16x18 Rear and 1/2x20 Front
Bracket Finish Chrome Warranty Yes
Prop65 Yes Brand CPP
Mounting Location Undermount
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Customer Questions
Does a 4 wheel disc need a different proportioning valve?
Not when you buy one of our CPP proportioning valves. Our proportioning valve will work with both disc/drum or disc/disc applications. 
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What does a brake proportioning valve do?
A brake proportioning valve regulates the brake fluid pressure between the front and rear brakes, ensuring balanced braking power.  
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What size fitting is the back of the proportioning valve?
The fitting size is 9/16-18" but we sell a kit that would accommodate any popular size adapter (part number CP2091) which includes 3/8-24", 7/16-24", and 1/2-20".
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Do I need a proportioning valve when upgrading from drum to disc?
Yes! A proportioning valve is needed to ensure the proper amount of brake fluid pressure is going to the front and rear wheels.  
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APV-DB instructions (2)

This kit includes:

  1. Fixed

  2. P/N: 11499B

    • Description: Adjustable Proportioning Valve Bracket, Black Zinc
    • Quantity: 1

  3. P/N: APV-DB-C

    • Description: Chrome Aluminum Adjustable Proportioning Valve For Dual Master Cylinders 2 & 4 Wheel Disc
    • Quantity: 1

  4. P/N: PVLU-APVDB

    • Description: Proportioning Valve Lines to the Cylinder Undermount Frame Mount, 9/16 x 18 rear and 1/2 x 20 Front
    • Quantity: 1

  5. P/N: A1-2770

    • Description: 5/16in-18 Whiz Lock Nut
    • Quantity: 2

  6. P/N: S4-6C15B

    • Description: 5/16in-18 X 1-1/2in Ss Button Socket
    • Quantity: 2
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