68-82 Corvette Power Brake Booster Kit 9" Dual Black Oval Master Black PV4 Valve

Pirate Jack 1968–1982 Corvette Power Brake Booster Kit | PB9512CN 9" Dual Booster, 1.125" Bore Black Oval Master Cylinder & Black PV4 Valve, Includes 1974–77 Switch

Built right for your Corvette, not just “close enough.”

If you’ve shopped for a power brake setup for your C3 Corvette, you’ve probably seen plenty of kits that look about the same. Many use generic boosters, and most leave out a detail that catches 1974–1977 owners off guard: those years need a different proportioning valve switch. Buyers often find out only after the kit arrives, and then it’s hunting down parts, placing another order and waiting.

The Pirate Jack kit covers every year from 1968 to 1982. Everything in this package is matched for disc/disc C3 Corvettes and finished in black for a clean, custom look under the hood, and the switch 1974–1977 owners need is already in the box.

A true OE replacement booster, not a generic one
The PB9512CN is a brand-new 9" dual diaphragm power brake booster built as a true OE replacement for the Corvette. It comes with the correct rod end that connects directly to your Corvette’s brake pedal, so it hooks up the way the factory intended, with no adapters or modifications needed.

Black oval master cylinder
The 1.125" bore black oval master cylinder is sized for disc/disc Corvette brake systems and matched to the booster, for firm, consistent pedal feel. It’s truly non-corrosive and has a flat top lid with stainless steel hex bolts.

Black PV4 valve that covers every year, including the 1974–1977 switch
The black PV4 proportioning valve matches the rest of the kit and ships with its standard switch installed, ready for most 1968–1982 Corvettes. If you have a 1974–1977 Corvette, the kit also includes the metal Corvette-style switch those years require. Remove the standard switch and thread in the metal one. You won’t have to track down a part or place a second order.

What’s Included

• PB9512CN 9" dual diaphragm power brake booster: true OE replacement with the correct pedal rod end, black finish, brand new (not rebuilt)
• 1.125" bore black oval master cylinder: matched to the booster, ideal for disc/disc systems
• Black PV4 proportioning valve: standard switch installed
• Metal Corvette-style switch for 1974–1977 models: included loose, ready to install

Master Cylinder Specs

• 1.125" bore, black oval design
• Truly non-corrosive
• Tandem outlets: 9/16"-18 and 1/2"-20
• Flat top lid with stainless steel hex bolts
• 3-3/8" master cylinder mounting pattern

Why Buy This Kit

• ✔ True OE replacement booster with the correct rod end for the Corvette brake pedal
• ✔ Covers 1968–1982, with the 1974–1977 switch included
• ✔ 1.125" bore black oval master cylinder, ideal for disc/disc brakes
• ✔ Matching black finish across the booster, master and valve
• ✔ Booster, master and valve matched to work together
• ✔ Brand-new components, not remanufactured
• ✔ No hunting for parts and no second order

Fitment

• 1968–1982 Chevrolet Corvette (C3)
• Ideal for disc/disc brake systems
• 1974–1977 owners: swap in the included metal switch before installing the valve

Questions? Send us a message or give us a call 866-601-4455. The Pirate Jack team is happy to help confirm fitment for your year before you order.

Do it once and do it right. Order your Corvette power brake booster kit from Pirate Jack today.