Availability
CHEVROLET GM inline 6-cylinder Master Cylinders & Boosters
Showing In Stock Items. Show All 67 Items.
7 in. Booster, Chrome, Firewall Mount, Dual Bowl Master Cylinder, Aluminum, Chrome, Non-Adjustable Proportioning Valve, Disc/Disc, Kit
Part Number: LEB-4L6B4
Estimated Ship Date: Monday 2/23/2026 if shipped by air
Estimated Ship Date: Monday 2/23/2026 if shipped by air
7 in. Booster, Chrome, Firewall Mount, Dual Bowl Master Cylinder, Aluminum, Chrome, Non-Adjustable Proportioning Valve, Disc/Drum, Kit
Part Number: LEB-4L6B2
Estimated Ship Date: Monday 2/23/2026 if shipped by air
Estimated Ship Date: Monday 2/23/2026 if shipped by air
Brake Booster/Master Cylinder, Cast Iron/Steel, Natural/Cadmium Plated, Chevy, Kit
Part Number: RSD-G92210971
Estimated Ship Date: Monday 2/23/2026 if shipped by air
Estimated Ship Date: Monday 2/23/2026 if shipped by air
8 in. Booster, Chrome, Firewall Mount, Dual Bowl Master Cylinder, Aluminum, Chrome, Non-Adjustable Proportioning Valve, Disc/Drum, Kit
Part Number: LEB-4N6B2
Not Yet Reviewed
Estimated Ship Date: Monday 2/23/2026 if shipped by air
Estimated Ship Date: Monday 2/23/2026 if shipped by air
8 in. Booster, Chrome, Firewall Mount, Dual Bowl Master Cylinder, Aluminum, Chrome, Non-Adjustable Proportioning Valve, Disc/Disc, Kit
Part Number: LEB-4N6B4
Not Yet Reviewed
Estimated Ship Date: Monday 2/23/2026 if shipped by air
Estimated Ship Date: Monday 2/23/2026 if shipped by air
8 in. Booster, Zinc, Firewall Mount, Dual Bowl Master Cylinder, Cast iron, Natural, Non-Adjustable Proportioning Valve, Disc/Drum, Kit
Part Number: LEB-3M1A1
Estimated Ship Date: Monday 2/23/2026 if shipped by air
Estimated Ship Date: Monday 2/23/2026 if shipped by air
Brake Booster/Master Cylinder, Cast Iron/Steel, Natural/Cadmium Plated, Chevy, Kit
Part Number: RSD-G92210572
Estimated Ship Date: Monday 2/23/2026 if shipped by air
Estimated Ship Date: Monday 2/23/2026 if shipped by air
Brake Booster, Power Brake, Vacuum Dual Diaphragm, 8 in. Diameter, Steel, Chrome, Each
Part Number: LEB-4N
Estimated Ship Date: Monday 2/23/2026 if shipped by air
Estimated Ship Date: Monday 2/23/2026 if shipped by air
Master Cylinder and Booster, Aluminum/Steel, Chrome, 8 in. Booster, Chevy, Kit
Part Number: RSD-J82315672
Estimated Ship Date: Monday 2/23/2026 if shipped by air
Estimated Ship Date: Monday 2/23/2026 if shipped by air
Brake Booster, Vacuum Diaphragm Type, Steel, Chrome, 8.00 in. Diameter, Chevy, Each
Part Number: RSD-RPB8231C
Estimated Ship Date: Monday 2/23/2026 if shipped by air
Estimated Ship Date: Monday 2/23/2026 if shipped by air
Brake Booster, Power Brake, Vacuum Dual Diaphragm, 7 in. Diameter, Steel, Zinc, Each
Part Number: LEB-3K
Estimated Ship Date: Monday 2/23/2026 if shipped by air
Estimated Ship Date: Monday 2/23/2026 if shipped by air
Master Cylinder and Booster, Aluminum/Steel, Chrome, 8 in. Booster, Chevy, Kit
Part Number: RSD-J82315171
Estimated Ship Date: Monday 2/23/2026 if shipped by air
Estimated Ship Date: Monday 2/23/2026 if shipped by air
Brake Booster, Power Brake, Vacuum Single Diaphragm, 9 in. Diameter, Steel, Zinc, Each
Part Number: LEB-3E
Estimated Ship Date: Monday 2/23/2026 if shipped by air
Estimated Ship Date: Monday 2/23/2026 if shipped by air
Master Cylinder and Brake Booster Assembly, Dual Bowl Design, 1.000 in. Bore Size, Black, 8.00 in. Booster Diameter, Front/Rear Disc, Chevrolet, Kit
Part Number: RSD-B82315672
Not Yet Reviewed
Estimated Ship Date: Mar 13, 2026 if ordered today
Estimated Ship Date: Mar 13, 2026 if ordered today
Master Cylinder, 1.00 in. Bore, Chevy, Pontiac, Oldsmobile, Each
Part Number: DHB-M21000
Estimated Ship Date: Monday 2/23/2026 if shipped by air
Estimated Ship Date: Monday 2/23/2026 if shipped by air
7 in. Booster, Zinc, Firewall Mount, Dual Bowl Master Cylinder, Cast iron, Natural, Non-Adjustable Proportioning Valve, Disc/Disc, Kit
Part Number: LEB-3K1A3
Not Yet Reviewed
Estimated Ship Date: Mar 30, 2026 if ordered today
Estimated Ship Date: Mar 30, 2026 if ordered today
Brake Booster, Vacuum Diaphragm Type, Steel, Cadmium Plated, 8.00 in. Diameter, Chevy, Each
Part Number: RSD-RPB8231
Estimated Ship Date: Monday 2/23/2026 if shipped by air
Estimated Ship Date: Monday 2/23/2026 if shipped by air
Master Cylinder and Brake Booster Assemblies, Firewall Brake Conversions, 8 in. Diameter, Fits Front Disc Rear Drum Applications Only, Chevy, GMC, Kit
Part Number: HCT-S0217
Not Yet Reviewed
Estimated Ship Date: Monday 2/23/2026 if shipped by air
Estimated Ship Date: Monday 2/23/2026 if shipped by air
Power Brake Booster, Universal, 8 in., Slim Line, Natural, Steel, Includes Rod and Clevis, Each
Part Number: RSD-RPB8531
Estimated Ship Date: Monday 2/23/2026 if shipped by air
Estimated Ship Date: Monday 2/23/2026 if shipped by air
Brake Booster, Power Brake, Vacuum Single Diaphragm, 9 in. Diameter, Steel, Chrome, Each
Part Number: LEB-4F
Not Yet Reviewed
Estimated Ship Date: Monday 2/23/2026 if shipped by air
Estimated Ship Date: Monday 2/23/2026 if shipped by air
7 in. Booster, Chrome, Firewall Mount, Dual Bowl Master Cylinder, Aluminum, Chrome, Adjustable Proportioning Valve, Disc/Drum or Disc/Disc, Kit
Part Number: LEB-4L605
Not Yet Reviewed
Estimated Ship Date: Mar 30, 2026 if ordered today
Estimated Ship Date: Mar 30, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
LEED Brakes Master Cylinder and Brake Booster Combos 4L6
Not Yet Reviewed
Estimated Ship Date: Monday 2/23/2026
Brake Booster, Power Brake, Vacuum Dual Diaphragm, 8 in. Diameter, Steel, Zinc, Each
Part Number: LEB-3M
Not Yet Reviewed
Estimated Ship Date: Monday 2/23/2026 if shipped by air
Estimated Ship Date: Monday 2/23/2026 if shipped by air
Brake Booster, Power Brake, Vacuum Dual Diaphragm, 7 in. Diameter, Steel, Chrome, Each
Part Number: LEB-4L
Not Yet Reviewed
Estimated Ship Date: Monday 2/23/2026 if shipped by air
Estimated Ship Date: Monday 2/23/2026 if shipped by air
7 in. Booster, Zinc, Firewall Mount, Dual Bowl Master Cylinder, Cast iron, Natural, Adjustable Proportioning Valve, Disc/Drum or Disc/Disc, Kit
Part Number: LEB-3E305
Not Yet Reviewed
Estimated Ship Date: Mar 30, 2026 if ordered today
Estimated Ship Date: Mar 30, 2026 if ordered today
Master Cylinder and Brake Booster Assemblies, Firewall Brake Conversions, 8 in. Diameter, Fits Front Disc Rear Drum Applications Only, Chevy, GMC, Kit
Part Number: HCT-S0223
Not Yet Reviewed
Estimated Ship Date: Monday 2/23/2026 if shipped by air
Estimated Ship Date: Monday 2/23/2026 if shipped by air
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