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Distribution Block, Brake, 1959-65 Bonn/Cat/GP, Single Master Cylinder

Part# : GBC9831
Sold As: Each
Ship Size: Standard
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$45.99
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List Price: $51.95
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Estimated the week of 10/28/2026
Vehicle Specific View fitment for 3 models
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1959-65 Bonneville/Catalina / 1962-65 Grand Prix Brake Distribution Block (Single Master) by Inline Tube®

1959-65 Pontiac Bonneville/Catalina/Grand Prix Brake Distribution Block

This Inline Tube® brake distribution block fits 1959-65 Pontiac Bonneville and Catalina, plus 1962-65 Grand Prix. For a single-reservoir master cylinder. It provides the junction for the brake lines, routing fluid from the master cylinder into the vehicle’s hydraulic brake circuits. The block is made from solid brass. It has four 7/16-24 threaded ports. Sold individually.

• Supplier part number: BLK403 • Single-Reservoir Master • Solid brass • Sold individually • Brake-line ports: 4 holes, 4x 7/16-24

We aim to provide accurate and complete product information. If you notice anything incorrect, missing, or unclear, please let us know.
WARNING: This product can expose you to chemicals including lead, sulfur, nickel, chromium, vanadium, titanium, polyvinyl chloride, and 4,4’-methylenebis (2-chloroaniline), which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Vehicle Fitment

Year Make Model Application Details
1959–1965 Pontiac Bonneville OE single master cylinder
1959–1965 Pontiac Catalina OE single master cylinder
1962–1965 Pontiac Grand Prix OE single master cylinder
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Distribution Block, Brake, 1959-65 Bonn/Cat/GP, Single Master Cylinder
Distribution Block, Brake, 1959-65 Bonn/Cat/GP, Single Master Cylinder