1966 Master Cylinders & Boosters

7 in. Booster, Zinc, Firewall Mount, Dual Bowl Master Cylinder, Cast iron, Natural, Disc/Drum or Disc/Disc, Kit

Part Number: LEB-1K1

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Estimated Ship Date: Mar 27, 2026 if ordered today

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8 in. Booster, Zinc, Firewall Mount, Dual Bowl Master Cylinder, Cast iron, Natural, Disc/Drum or Disc/Disc, Kit

Part Number: LEB-A81

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8 in. Booster, Zinc, Firewall Mount, Dual Bowl Master Cylinder, Cast iron, Natural, Non-Adjustable Proportioning Valve, Disc/Disc, Kit

Part Number: LEB-A81A3

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

Part Number: LEB-4V6B2

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 27, 2026 if ordered today

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8 in. Booster, Zinc, Firewall Mount, Dual Bowl Master Cylinder, Cast iron, Natural, Disc/Drum or Disc/Disc, Kit

Part Number: LEB-3U1

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8 in. Booster, Zinc, Firewall Mount, Dual Bowl Master Cylinder, Cast iron, Natural, Adjustable Proportioning Valve, Disc/Drum or Disc/Disc, Kit

Part Number: LEB-3U105

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 27, 2026 if ordered today

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9 in. Booster, Zinc, Firewall Mount, Dual Bowl Master Cylinder, Cast iron, Natural, Adjustable Proportioning Valve, Disc/Drum or Disc/Disc, Kit

Part Number: LEB-3U305

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8 in. Booster, Chrome, Firewall Mount, Dual Bowl Master Cylinder, Aluminum, Chrome, Disc/Drum or Disc/Disc, Kit

Part Number: LEB-4N6

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

Part Number: LEB-4N605

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9 in. Booster, Chrome, Firewall Mount, Dual Bowl Master Cylinder, Aluminum, Chrome, Disc/Drum or Disc/Disc, Kit

Part Number: LEB-4R6

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

Part Number: LEB-4R6B2

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

Part Number: LEB-4R6B4

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Brake Booster, Power Brake, Vacuum Dual Diaphragm, 7 in. Diameter, Steel, Chrome, Each

Part Number: LEB-4T

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8 in. Booster, Zinc, Firewall Mount, Dual Bowl Master Cylinder, Cast iron, Natural, Disc/Drum or Disc/Disc, Kit

Part Number: LEB-1M1

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7 in. Booster, Zinc, Firewall Mount, Dual Bowl Master Cylinder, Cast iron, Natural, Disc/Drum or Disc/Disc, Kit

Part Number: LEB-3S1

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7 in. Booster, Zinc, Firewall Mount, Dual Bowl Master Cylinder, Cast iron, Natural, Non-Adjustable Proportioning Valve, Disc/Drum, Kit

Part Number: LEB-3S1A1

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7 in. Booster, Zinc, Firewall Mount, Dual Bowl Master Cylinder, Cast iron, Natural, Non-Adjustable Proportioning Valve, Disc/Disc, Kit

Part Number: LEB-3S1A3

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 27, 2026 if ordered today

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8 in. Booster, Zinc, Firewall Mount, Dual Bowl Master Cylinder, Cast iron, Natural, Disc/Drum or Disc/Disc, Kit

Part Number: LEB-G84

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63-66 GM & GMC C/K Truck, Master Cylinder & 9" Chrome Booster Combination Kit (Disc/Disc)

Part Number: RSD-J96310572

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Estimated Ship Date: Mar 10, 2026 if ordered today

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63-66 GM & GMC C/K Truck, Master Cylinder & 9" Chrome Booster Combination Kit (Disc/Drum)

Part Number: RSD-J96310971

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CHROME BOOST MASTER COMBO

Part Number: RSD-J800115

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 10, 2026 if ordered today

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1" Boore Master Cylinder 4 port GM Truck style Valve Combo, Disc/Drum

Part Number: RSD-G0541

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Chrome 1" Bore Master Cylinder 4 port GM Truck style Valve Combo, Disc/Drum

Part Number: RSD-J5641

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Chrome 1" Bore Master Cylinder 4 port GM Truck style Valve Combo, Disc/Disc

Part Number: RSD-J5642

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7 in. Booster, Zinc, Firewall Mount, Dual Bowl Master Cylinder, Cast iron, Natural, Disc/Drum or Disc/Disc, Kit

Part Number: LEB-E61

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