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Leed Brakes

LEED Brakes Master Cylinder and Brake Booster Combos 3S1A1 7 in. Booster, Zinc, Firewall Mount, Dual Bowl Cylinder, Cast iron, Natural, Non-Adjustable Proportioning Valve, Disc/Drum, Kit

SKU: LEB3S1A1

Master Cylinder and Brake Booster Assemblies
LEED Brakes Master Cylinder and Brake Booster Combos 3S1A1 7 in. Booster, Zinc, Firewall Mount, Dual Bowl Cylinder, Cast iron, Natural, Non-Adjustable Proportioning Valve, Disc/Drum, Kit

Leed Brakes

LEED Brakes Master Cylinder and Brake Booster Combos 3S1A1 7 in. Booster, Zinc, Firewall Mount, Dual Bowl Cylinder, Cast iron, Natural, Non-Adjustable Proportioning Valve, Disc/Drum, Kit

SKU: LEB3S1A1

Master Cylinder and Brake Booster Assemblies

Sale ends in Calculating...

A$1,064.56 A$1,116.63
BACKORDER This item will be special ordered in for you. Contact us prior to purchase if you require an ETA.
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Description

LEED master cylinder and brake booster combos deliver top-quality braking power and are designed to mount directly to your factory firewall. The Leeds brake booster assemblies work great as factory replacements or an upgrade from manual to power brakes. Make your quick stops effective and safe with LEED combo kits!

Part Type

7in Dual Power Brake Boo ster 1-1/8in Bore Mastr

Data: v4.2 - Upd: 2026-10-15 00:17:35

Specifications

Product Attributes - Brand
Leed Brakes
Product Attributes - Manufacturer's Part Number
3S1A1
Product Attributes - Part Type
Master Cylinder and Brake Booster Assemblies
Product Attributes - Product Line
LEED Brakes Master Cylinder and Brake Booster Combos
Product Attributes - UPC
887753626714
Product Attributes - Master Cylinder Bore Size
1.125 in.
Product Attributes - Master Cylinder Stroke
1.312 in.
Product Attributes - Bowl Design
Dual
Product Attributes - Master Cylinder Material
Iron
Product Attributes - Master Cylinder Finish
Natural
Product Attributes - Reservoir Included
Yes
Product Attributes - Reservoir Material
Iron
Product Attributes - Reservoir Color
Natural
Product Attributes - Proportioning Valve Included
Yes
Product Attributes - Master Cylinder Cap Included
Yes
Product Attributes - Brake Booster Type
Vacuum dual diaphragm
Product Attributes - Brake Booster Diameter (in.)
7.00 in.
Product Attributes - Brake Booster Material
Steel
Product Attributes - Brake Booster Color
Zinc
Product Attributes - Brake Pedal Rod Extension Included
Yes
Product Attributes - Mounting Location
Firewall
Product Attributes - Mounting Hardware Included
No
Product Attributes - Remanufactured
No
Product Attributes - Quantity
Sold as a kit.
Product Attributes - Notes
Includes a non-adjustable proportioning valve. Compatible with disc/drum brake setups.

Reference Information

Brand Name/s Leed Brakes
StreetFX SKU leb3S1A1
SFX Item ID 5156368
Supplier Item Code 5156368
Manufacturer SKU 3S1A1
Manufacturer UPC 887753626714
Alternative References LEE3S1A1

Compatibility

Application Data
  • MakeCHEVROLET
    ModelC10 PANEL
    SubmodelBASE
    Beginning Year1960
    Ending Year1962
    Engine TypeL6
    Liter3.9
    CID235
    Engine FamilyGM inline 6-cylinder
    Engine Size3.9L/235
  • MakeCHEVROLET
    ModelC10 PANEL
    SubmodelBASE
    Beginning Year1963
    Ending Year1965
    Engine TypeL6
    Liter3.8
    CID230
    Engine FamilyGM inline 6-cylinder
    Engine Size3.8L/230
  • MakeCHEVROLET
    ModelC10 PANEL
    SubmodelBASE
    Beginning Year1966
    Ending Year1966
    Engine TypeL6
    Liter4.1
    CID250
    CC4098
    Engine FamilyGM inline 6-cylinder
    Engine Size4.1L/250
  • MakeCHEVROLET
    ModelC10 PICKUP
    SubmodelBASE
    Beginning Year1960
    Ending Year1961
    Engine TypeV8
    Liter5.7
    CID348
    CC5704
    Engine FamilyChevy big block W-engines
    Engine Size5.7L/348
  • MakeCHEVROLET
    ModelC10 PICKUP
    SubmodelBASE
    Beginning Year1960
    Ending Year1962
    Engine TypeL6
    Liter3.8
    CID235
    CC3852
    Engine FamilyGM inline 6-cylinder
    Engine Size3.8L/235
  • MakeCHEVROLET
    ModelC10 PICKUP
    SubmodelBASE
    Beginning Year1960
    Ending Year1966
    Engine TypeV8
    Liter4.6
    CID283
    CC4638
    Engine FamilyChevy small block Gen I
    Engine Size4.6L/283
  • MakeCHEVROLET
    ModelC10 PICKUP
    SubmodelBASE
    Beginning Year1961
    Ending Year1962
    Engine TypeL6
    Liter4.3
    CID261
    CC4278
    Engine FamilyGM inline 6-cylinder
    Engine Size4.3L/261
  • MakeCHEVROLET
    ModelC10 PICKUP
    SubmodelBASE
    Beginning Year1963
    Ending Year1966
    Engine TypeL6
    Liter3.8
    CID230
    CC3769
    Engine FamilyGM inline 6-cylinder
    Engine Size3.8L/230
  • MakeCHEVROLET
    ModelC10 PICKUP
    SubmodelBASE
    Beginning Year1963
    Ending Year1966
    Engine TypeL6
    Liter4.8
    CID292
    CC4801
    Engine FamilyGM inline 6-cylinder
    Engine Size4.8L/292
  • MakeCHEVROLET
    ModelC10 PICKUP
    SubmodelBASE
    Beginning Year1966
    Ending Year1966
    Engine TypeL6
    Liter4.1
    CID250
    CC4097
    Engine FamilyGM inline 6-cylinder
    Engine Size4.1L/250
  • MakeCHEVROLET
    ModelC10 PICKUP
    SubmodelBASE
    Beginning Year1966
    Ending Year1966
    Engine TypeL6
    Liter4.1
    CID250
    CC4098
    Engine FamilyGM inline 6-cylinder
    Engine Size4.1L/250
  • MakeCHEVROLET
    ModelC10 PICKUP
    SubmodelBASE
    Beginning Year1966
    Ending Year1966
    Engine TypeV8
    Liter5.3
    CID327
    CC5358
    Engine FamilyChevy small block Gen I
    Engine Size5.3L/327
  • MakeCHEVROLET
    ModelK10 PICKUP
    SubmodelBASE
    Beginning Year1960
    Ending Year1961
    Engine TypeV8
    Liter5.7
    CID348
    CC5704
    Engine FamilyChevy big block W-engines
    Engine Size5.7L/348
  • MakeCHEVROLET
    ModelK10 PICKUP
    SubmodelBASE
    Beginning Year1960
    Ending Year1962
    Engine TypeL6
    Liter3.8
    CID235
    CC3852
    Engine FamilyGM inline 6-cylinder
    Engine Size3.8L/235
  • MakeCHEVROLET
    ModelK10 PICKUP
    SubmodelBASE
    Beginning Year1960
    Ending Year1966
    Engine TypeV8
    Liter4.6
    CID283
    CC4638
    Engine FamilyChevy small block Gen I
    Engine Size4.6L/283
  • MakeCHEVROLET
    ModelK10 PICKUP
    SubmodelBASE
    Beginning Year1961
    Ending Year1962
    Engine TypeL6
    Liter4.3
    CID261
    CC4278
    Engine FamilyGM inline 6-cylinder
    Engine Size4.3L/261
  • MakeCHEVROLET
    ModelK10 PICKUP
    SubmodelBASE
    Beginning Year1963
    Ending Year1966
    Engine TypeL6
    Liter3.8
    CID230
    CC3769
    Engine FamilyGM inline 6-cylinder
    Engine Size3.8L/230
  • MakeCHEVROLET
    ModelK10 PICKUP
    SubmodelBASE
    Beginning Year1963
    Ending Year1966
    Engine TypeL6
    Liter4.8
    CID292
    CC4801
    Engine FamilyGM inline 6-cylinder
    Engine Size4.8L/292
  • MakeCHEVROLET
    ModelK10 PICKUP
    SubmodelBASE
    Beginning Year1966
    Ending Year1966
    Engine TypeL6
    Liter4.1
    CID250
    CC4097
    Engine FamilyGM inline 6-cylinder
    Engine Size4.1L/250
  • MakeCHEVROLET
    ModelK10 PICKUP
    SubmodelBASE
    Beginning Year1966
    Ending Year1966
    Engine TypeL6
    Liter4.1
    CID250
    CC4098
    Engine FamilyGM inline 6-cylinder
    Engine Size4.1L/250
  • MakeCHEVROLET
    ModelK10 PICKUP
    SubmodelBASE
    Beginning Year1966
    Ending Year1966
    Engine TypeV8
    Liter5.3
    CID327
    CC5358
    Engine FamilyChevy small block Gen I
    Engine Size5.3L/327
  • MakeCHEVROLET
    ModelSUBURBAN
    SubmodelBASE
    Beginning Year1960
    Ending Year1961
    Engine TypeV8
    Liter5.7
    CID348
    CC5704
    Engine FamilyChevy big block W-engines
    Engine Size5.7L/348
  • MakeCHEVROLET
    ModelSUBURBAN
    SubmodelBASE
    Beginning Year1960
    Ending Year1962
    Engine TypeL6
    Liter3.8
    CID235
    CC3852
    Engine FamilyGM inline 6-cylinder
    Engine Size3.8L/235
  • MakeCHEVROLET
    ModelSUBURBAN
    SubmodelBASE
    Beginning Year1960
    Ending Year1966
    Engine TypeV8
    Liter4.6
    CID283
    CC4638
    Engine FamilyChevy small block Gen I
    Engine Size4.6L/283
  • MakeCHEVROLET
    ModelSUBURBAN
    SubmodelBASE
    Beginning Year1961
    Ending Year1962
    Engine TypeL6
    Liter4.3
    CID261
    CC4278
    Engine FamilyGM inline 6-cylinder
    Engine Size4.3L/261

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