1966 PONTIAC GTO Master Cylinders & Boosters

Master Cylinder and Booster, 9 in. Booster, Single Diaphragm, 1.125 in. Bore, Gold, Disc/Drum, Buick, Chevy, Pontiac, Oldsmobile, Kit

Part Number: RSD-G91020971

3.75 out of 5 stars ( 16 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Brake Booster, Hydraulic Brake Assist Power Brake Booster, Hydraulic, Buick, Chevrolet, Oldsmobile, Pontiac, Kit

Part Number: RSD-HBUK001

3.83 out of 5 stars ( 6 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Master Cylinder and Booster, 9 in. Booster, Single Diaphragm, 1 in. Bore, Gold, Disc/Disc, Kit

Part Number: RSD-G91210572

4.5 out of 5 stars ( 10 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Master Cylinder, Power Brake Conversion, Dual Bow 4 Wheel Disc, Cap, Reservoir, Booster, Black, Chevy, GM, A-Body, Kit

Part Number: SUM-760222-DD

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Master Cylinder, Aluminum/Steel, Chrome, 8 in. Booster, Buick, Chevy, Oldsmobile, Pontiac, Kit

Part Number: RSD-J81315672

4.13 out of 5 stars ( 16 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Brake Booster, Power Brake, Vacuum Dual Diaphragm, 8 in. Diameter, Steel, Chrome, Each

Part Number: SUM-760235

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Master Cylinder, Booster, Proportioning Valve, 9 in. Booster, 1.125 in. Bore, Gold, Disc/Drum, Buick, Chevy, Pontiac, Olds, Kit

Part Number: RSD-G91210971

4.28 out of 5 stars ( 25 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Brake Booster/Master Cylinder, 1967-72 GM A/F/X-Body, Black Hydraulic Brake Assist Booster & Master Cylinder Combination Kit

Part Number: RSD-BHB015672

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Master Cylinder, Power Brake Conversion, Dual Bowl, Cap, Reservoir, Booster, Black, Chevy, GM, A-Body, Kit

Part Number: SUM-760222

3.0 out of 5 stars ( 6 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Power Brake Booster, 9 in. Diameter, Steel, Gold Zinc Plated, Buick, Chevy, Oldsmobile, Pontiac, Each

Part Number: RSD-RPB9121

4.38 out of 5 stars ( 16 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Master Cylinder, Cast Iron, Natural, Dual Reservoir, 1.125 in. Bore, Buick, Chevy, Oldsmobile, Pontiac, Each

Part Number: RSD-DBMC09

4.61 out of 5 stars ( 51 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

Master Cylinder and Brake Boost Assembly, 1.125 in. Bore, Dual Bowl Design, Cast Iron Master Cylinder, Natural, 9 in., Steel Booster, Zinc Plated, Kit

Part Number: SUM-760226

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Brake Booster/Master Cylinder, 1964-72 GM A/F/X-Body W/Disc & Disc, Black Booster & Master Cylinder Combination Kit

Part Number: RSD-B81315672

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Master Cylinder, Power Brake Conversion, Dual Bowl, Cap, Reservoir, Booster, Chrome, Chevy, GM, A-Body, Kit

Part Number: SUM-760220

3.2 out of 5 stars ( 5 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Power Brake Booster, Vacuum, Single Diaphragm, Steel, Chrome, 11.0 in. Diameter, Buick, Chevy, Oldsmobile, Pontiac, Each

Part Number: SUM-760127

4.25 out of 5 stars ( 4 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Master Cylinder, Power Brake Conversion, Dual Bowl, Reservoir, Booster, Buick, Chevy, Oldsmobile, Pontiac, Kit

Part Number: SUM-760198

4.0 out of 5 stars ( 6 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Brake Booster, Vacuum Diaphragm Type, Steel, Chrome, 7 in. Diameter, Polished Stainless Brackets, Chevy, Kit

Part Number: RSD-RPB7137C

4.75 out of 5 stars ( 8 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Power Brake Booster, 9 in. Diameter, Steel, Chrome, Buick, Chevy, Oldsmobile, Pontiac, Each

Part Number: RSD-RPB9121C

4.75 out of 5 stars ( 8 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Brake Booster, Power Brake, Vacuum Dual Diaphragm, 8 in. Diameter, Steel, Zinc, Each

Part Number: LEB-1M

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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8 in. Booster, Chrome, Firewall Mount, Dual Bowl Master Cylinder, Aluminum, Chrome, Non-Adjustable Proportioning Valve, Disc/Disc, Kit

Part Number: LEB-2N6B4

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Master Cylinder and Brake Booster Assembly, Dual Bowl Design, 1.125 in. Bore, Buick, Chevy, Olds, Pontiac, Kit

Part Number: RSD-G81310971

5.0 out of 5 stars ( 8 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Brake Booster, GM Delco Style, Vacuum Single Diaphragm, Steel, Gold, 11.00 in. Diameter, Buick, Chevrolet, Oldsmobile, Pontiac, Each

Part Number: OER-PB1088A

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Brake Master Cylinders, Dual Bowl Design, 1.000 in. Bore Size, Cast Iron, without Power Brakes and Has Deep Piston, Buick, Chevy, Olds, Pontiac, Each

Part Number: TSB-0401

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

Power Brake Booster, Steel, Gold Zinc Plated, 9.0 in. Diameter, Buick, Chevy, Oldsmobile, Pontiac, Each

Part Number: SUM-760163

4.83 out of 5 stars ( 12 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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