6J4C7 Vacuum Brake Booster, 7 in. Power Booster, 1 in. Bore Master Adjustable Combo Valve (Crome)
InfoVehicle Info Needed
LEED BRAKESPART NUMBER: 633-6J4C7

6J4C7 Vacuum Brake Booster, 7 in. Power Booster, 1 in. Bore Master Adjustable Combo Valve (Crome)

$37799$419.99You Save$42.00
ShippingShips on 09/14/2026
Lowest PriceLowest Price Guarantee

Vacuum Brake Booster
  • 7 in. Power Booster
  • 1 in. Bore Master Adjustable Combo Valve (Crome)

    Leed Brakes 6J4C7 Features:

    New 7" chrome plated power brake booster, master cylinder & adjustable combination block. This top quality power brake booster is designed mount directly to your factory firewall. This power booster works great as an upgrade from manual to power brakes for vehicles with automatic transmissions. Also included in this kits is a new factory style 1" bore master cylinder and proportioning valve equipped to work with 4 wheel disc brake & Front Disc / Rear Drum applications.

    • New unit not remanufactured
    • Includes brackets and pushrod
    • Bleeder Hoses Included: Yes
    • Booster Diaphragm Type: Single
    • Booster Housing Diameter: 7 in.
    • Booster Type: Vacuum
    • Bracket Included: Yes
    • Brake Booster Included: Yes
    • Brake Lines Included: From Master Cylinder to Valve
    • Brake Pedal Rod Extension Included: Yes
    • Grade Type: Regular
    • Housing Material: Steel
    • Master Cylinder Bore Size: 1.00 in.
    • Master Cylinder Bore Size: 1 in
    • Master Cylinder Cap Included: Yes
    • Master Cylinder Included: Yes
    • Master Cylinder Material: Cast Iron
    • Master Cylinder Port Quantity: 2
    • Master Cylinder Port Thread Diameter: 3/8-24, 1/2-20 in.
    • Mounting Hardware Included: No
  • Part TypeBrake Master Cylinder and Booster Assembly
    BrandLEED BRAKES
    Part CategoryPerformance Parts
    Brake Booster Finishchrome
    Bracket IncludedYes
    Brake Booster TypeSingle Diaphragm
    Master Cylinder FinishNatural
    Housing MaterialSteel
    Brake Booster IncludedYes
    Master Cylinder Bore Size1 in
    Mounting Hardware IncludedNo
    Master Cylinder Port Quantity2
    Brake Booster Diameter7 in.
    Booster Housing Diameter7 in.
    Bleeder Hoses IncludedYes
    Brake Pedal Pushrod IncludedYes
    Master Cylinder MaterialCast Iron
    Master Cylinder Cap IncludedYes
    Booster Diaphragm TypeSingle
    Brake Lines IncludedFrom Master Cylinder to Valve
    Booster TypeVacuum
    Master Cylinder IncludedYes
    Part FitmentSemi Universal
    Vendor Part Number6J4C7
    Package Qty1
    Package TypeEA
    No Questions
    No Reviews
    Some parts are not legal for use in California or other states with similar laws / regulations
    p65 warning
    Your Cart

    Your shopping cart is empty!

    6J4C7 Vacuum Brake Booster, 7 in. Power Booster, 1 in. Bore Master Adjustable Combo Valve (Crome) — LEED BRAKES