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![Brake Master Cylinder with Dual Reservoir & Proportioning Valve Kit for Disc/Drum Applications [GM Universal Mounting]](https://www.jegs.com/images/mini_750/500/555/555-630674.jpg)
Vehicle Info NeededJEGSPART NUMBER: 555-630674
Brake Master Cylinder with Dual Reservoir & Proportioning Valve Kit for Disc/Drum Applications [GM Universal Mounting]
$20999$230.99You Save$21.00
3 left in stock
Ships on Oct 26, 2026
Lowest Price GuaranteeGM Universal Cast Iron Brake Master Cylinders
Brake Master Cylinder KitGM Universal / Corvette Style Left/Driver Side Mount Disc/Drum Applications Dual Reservoir Dual Bail Cast Iron 1 in. Bore Brass Proportioning Valve
JEGS Universal Cast Iron Master Cylinder Kit Features:
- Disc/Drum Proportioning Valve
- Proportioning Valve Outlet Ports: (2) 3/8 in.-24 & (1) 9/16 in.-18
- Proportioning Valve Inlet Ports: (1) 1/2 in.-20 & (1) 7/16 in.-24
- Warning Light Switch Plug Included
- 3 3/8 in. Center-to-Center Slotted Mounting Holes
Fits These Applications:
- 1964-1972 Buick Skylark
- 1964-1969 Buick Special
- 1967-1969 Chevrolet Camaro
- 1964-1972 Chevrolet Chevelle
- 1964-1972 Chevrolet El Camino
- 1964-1967 Chevrolet Malibu
- 1970-1972 Chevrolet Monte Carlo
- 1964-1971 Oldsmobile 442
- 1964-1972 Oldsmobile Cutlass
- 1964-1972 Oldsmobile F85
- 1964-1972 Oldsmobile Vista Cruiser
- 1967-1969 Pontiac Firebird
- 1964-1972 Pontiac GTO
- 1964-1972 Pontiac Lemans
- 1964-1970 Pontiac Tempest
- Will also Fit Ford Bolt Patterns
Direct-Fit & Universal Brake Master Cylinders
JEGS offers a wide variety of brake master cylinders for direct fit or universal applications. Whether you're looking for a chrome unit to make your engine bay shine or just a replacement to get your vehicle back on the road, we have you covered. All units are manufactured using NEW not remanufactured high-quality materials and finishes to provide years of braking service.
Part TypeMaster Cylinder
Product LineJEGS Brake Master Cylinders
BrandJEGS
Package Height10.8
Package Width13.0
Package Length15.3
Weight14.45 PG
Part CategoryReplacement Parts
Port Quantity4
Hardware IncludedNo
Proportioning Valve MaterialBrass
Mounting Flange Center To Center Distance (In.)3.375
Master Cylinder FinishNatural
Installation Hardware IncludedNo
Mounting Hole Quantity2 holes
Brake Booster IncludedNo
Master Cylinder Bore Size1 in (25.4 mm)
QuantitySold as a kit
Brake Pedal Rod Extension IncludedNo
Bowl DesignDual
Rear Brake TypeDrum
Forward Outlet Size1/2-20 IF (Inverted Flare)
Brake SystemManual
Master Cylinder MaterialCast Iron
Master Cylinder Cap IncludedYes
Pushrod IncludedNo
Front Brake TypeDisc
Reservoir MaterialCast iron
Master Cylinder IncludedYes
Part FitmentSemi Universal
Reservoir IncludedYes
Rearward Outlet Size9/16-18 IF (Inverted Flare)
Vendor Part NumberMCK111LM/PRE5564 KIT
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
