Master Cylinders & Brake Boosters

Brass Seat, 3/16 in. Inverted Flare Seat, Each

Part Number: BAE-5517B

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Brake Proportioning Valve Bracket, Bolt-on, Steel, Black E-coat, Kit

Part Number: WIL-220-15679

1.0 out of 5 stars ( 1 )

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Master Cylinder, Tandem, Aluminum, Black, 1.125 in. Bore, Proportioning Valve, Fluid Tubes, Kit

Part Number: WIL-261-13270-BK

4.75 out of 5 stars ( 32 )

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Master Cylinder, Tandem, Aluminum, Black, 1 in. Bore, Proportioning Valve, Kit

Part Number: WIL-261-13269-BK

4.59 out of 5 stars ( 22 )

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Kit, Master Cylinder,Tandem, Compact, Integral Reservoir, Mopar-Style Mounting, 0.940 in. Bore, Without Pushrod, With Proportioning Valve, Black

Part Number: WIL-261-16796-BK

5.0 out of 5 stars ( 1 )

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Master Cylinder, Tandem, Aluminum, Black, 0.875 in. Bore, Proportioning Valve, Fluid Tubes, Kit

Part Number: WIL-261-13271-BK

4.63 out of 5 stars ( 8 )

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Master Cylinder, Compact, Aluminum, Black, Four Hole Mount, 1.125 in. Bore, 1.100 in. Stroke, 1/2 in.-20 Outlet, Proportioning Valve, Mopar, Kit

Part Number: WIL-261-17799-BK

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Master Cylinder, Angled Reservoirs, Aluminum, Media Burnished, 1.00 in. Bore, with Proportioning Valve, Fluid Tubes, Kit

Part Number: WIL-261-16962-P

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Master Cylinder, Adjustable Proportioning Valve, Black Anodized, 1 in. bore, Left Port, GM, Ford, Kit

Part Number: BAE-6805204

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8 in. Booster, Zinc, Firewall Mount, Dual Bowl Master Cylinder, Cast iron, Natural, Adjustable Proportioning Valve, Edsel, Ford, Mercury, Kit

Part Number: LEB-FC0024HK

4.4 out of 5 stars ( 5 )

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

Part Number: LEB-PBKT1084

5.0 out of 5 stars ( 1 )

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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-PBKT1046

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Master Cylinder, Booster, Proportioning Valve, 7 in. Booster, 1.00 in. Bore, Black, Disc/Disc, Ford, Kit

Part Number: RSD-Z64660572

1.0 out of 5 stars ( 2 )

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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-PBKT1035

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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-H61A3

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Master Cylinder, Tandem, Aluminum, Ball Burnished, 1.125 in. Bore, Proportioning Valve, Fluid Tubes, Kit

Part Number: WIL-261-13270-P

4.93 out of 5 stars ( 14 )

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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-H96B4

5.0 out of 5 stars ( 2 )

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Master Cylinder, Tandem, Remote Reservoirs, 1 1/8 in. Bore, 1.12 in. Stroke, Proportioning Valve, Bracket, Pushrod, Hardware, Aluminum, Polished, Kit

Part Number: WIL-261-14391-P

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Estimated Ship Date: May 1, 2026 if ordered today

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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-A8473

5.0 out of 5 stars ( 1 )

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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-1K1A3

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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-PBKT1077

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Estimated Ship Date: May 27, 2026 if ordered today

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

Part Number: LEB-4T6B4

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Estimated Ship Date: May 27, 2026 if ordered today

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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-PBKT1082

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Estimated Ship Date: May 27, 2026 if ordered today

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

Part Number: LEB-3Q1A1

2.5 out of 5 stars ( 2 )

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