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    • Leed Brakes 7 inch dual power booster, 1-1/8 inch bore flat top master disc/disc (Chrome) 4L6B4
    • Leed Brakes 7 inch dual power booster, 1-1/8 inch bore flat top master disc/disc (Chrome) 4L6B4
    • Leed Brakes 7 inch dual power booster, 1-1/8 inch bore flat top master disc/disc (Chrome) 4L6B4
    • LEE4L6B4.jpg

    Leed Brakes 7 inch dual power booster, 1-1/8 inch bore flat top master disc/disc (Chrome) 4L6B4

    Vendor: Leed Brakes
    SKU: HBCJ_4L6B4
    Regular Price $499.99
    Fast Fulfillment: In-stock parts typically ship same day or next business day.
    Free Shipping on Orders Over $99 | Excludes freight shipments
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    International Shipping Available - Contact Us!
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    New 7" Dual Diaphragm chrome plated power brake booster, master cylinder & 4 wheel disc proportioning valve combo. This 7" power booster is hand polished before a chrome finish is applied for a top quality finish. The top quality power brake booster is designed mount directly to your factory firewall. Also included in this kits is a new chrome 1-1/8" bore flat top master cylinder and proportioning valve equipped to work with 4 wheel disc brake applications.


    Leed Brakes 7 inch dual power booster, 1-1/8 inch bore flat top master disc/disc (Chrome) 4L6B4


    Specifications:

    Description_ASC Ships in 1 Box.
    Description_ASM 1955-1960 Chevrolet Sedan Delivery
    Description_ASM 1955-1957 Chevrolet One-Fifty Series
    Description_ASM 1959-1960 Chevrolet El Camino
    Description_ASM 1958-1961 Chevrolet Brookwood
    Description_ASM 1955-1957 Chevrolet Two-Ten Series
    Description_ASM 1955-1968 Chevrolet Bel Air
    Description_ASM 1958-1968 Chevrolet Impala
    Description_ASM 1958-1968 Chevrolet Biscayne
    Description_ASM 1955-1961 Chevrolet Nomad
    Description_ASM 1959-1960 Chevrolet Kingswood
    Description_ASM 1959-1961 Chevrolet Parkwood
    Description_ASM 1957-1958 Chevrolet Del Ray
    Description_ASM 1967-1968 Chevrolet Caprice
    Description_DES 7 inch dual power booster, 1-1/8 inch bore flat top master disc/disc (Chrome)
    Description_EXT Leed Brakes power booster assemblies are shipped fully assembled. This insures proper adjustment of the pushrod between the power booster and master cylinder and proper fitment all valves, lines and brackets for a trouble-free installation.
    Description_FAB New unit not remanufactured
    Description_FAB Includes brackets and pushrod
    Description_INV Leed Brakes Power Brake Booster
    Description_MKT New 7" Dual Diaphragm chrome plated power brake booster, master cylinder & 4 wheel disc proportioning valve combo. This 7" power booster is hand polished before a chrome finish is applied for a top quality finish. The top quality power brake booster is designed mount directly to your factory firewall. Also included in this kits is a new chrome 1-1/8" bore flat top master cylinder and proportioning valve equipped to work with 4 wheel disc brake applications.
    Description_SHO Vacuum Brake Booster
    Description_TLE LEED Brakes 7 inch dual power booster, 1-1/8 inch bore flat top master disc/disc (Chrome)
    Description_DEF Power Brake Booster with Brake Master Cylinder


    This Part Fits:

    Year Make Model Submodel Notes
    1955 Chevrolet Bel Air
    1956 Chevrolet Bel Air
    1957 Chevrolet Bel Air
    1958 Chevrolet Bel Air
    1959 Chevrolet Bel Air
    1960 Chevrolet Bel Air
    1961 Chevrolet Bel Air
    1962 Chevrolet Bel Air
    1963 Chevrolet Bel Air
    1964 Chevrolet Bel Air
    1965 Chevrolet Bel Air
    1966 Chevrolet Bel Air
    1967 Chevrolet Bel Air
    1968 Chevrolet Bel Air
    1958 Chevrolet Biscayne
    1959 Chevrolet Biscayne
    1960 Chevrolet Biscayne
    1961 Chevrolet Biscayne
    1962 Chevrolet Biscayne
    1963 Chevrolet Biscayne
    1964 Chevrolet Biscayne
    1965 Chevrolet Biscayne
    1966 Chevrolet Biscayne
    1967 Chevrolet Biscayne
    1968 Chevrolet Biscayne
    1958 Chevrolet Brookwood
    1959 Chevrolet Brookwood
    1960 Chevrolet Brookwood
    1961 Chevrolet Brookwood
    1967 Chevrolet Caprice
    1968 Chevrolet Caprice
    1957 Chevrolet Del Ray
    1958 Chevrolet Del Ray
    1959 Chevrolet El Camino
    1960 Chevrolet El Camino
    1958 Chevrolet Impala
    1959 Chevrolet Impala
    1960 Chevrolet Impala
    1961 Chevrolet Impala
    1962 Chevrolet Impala
    1963 Chevrolet Impala
    1964 Chevrolet Impala
    1965 Chevrolet Impala
    1966 Chevrolet Impala
    1967 Chevrolet Impala
    1968 Chevrolet Impala
    1959 Chevrolet Kingswood
    1960 Chevrolet Kingswood
    1955 Chevrolet Nomad
    1956 Chevrolet Nomad
    1957 Chevrolet Nomad
    1958 Chevrolet Nomad
    1959 Chevrolet Nomad
    1960 Chevrolet Nomad
    1961 Chevrolet Nomad
    1955 Chevrolet One-Fifty Series
    1956 Chevrolet One-Fifty Series
    1957 Chevrolet One-Fifty Series
    1959 Chevrolet Parkwood
    1960 Chevrolet Parkwood
    1961 Chevrolet Parkwood
    1955 Chevrolet Sedan Delivery
    1956 Chevrolet Sedan Delivery
    1957 Chevrolet Sedan Delivery
    1958 Chevrolet Sedan Delivery
    1959 Chevrolet Sedan Delivery
    1960 Chevrolet Sedan Delivery
    1955 Chevrolet Two-Ten Series
    1956 Chevrolet Two-Ten Series
    1957 Chevrolet Two-Ten Series
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    Last Updated: June 2026

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    Berry Performance Sales reserves the right to update this policy at any time. Changes take effect immediately upon posting. It is the customer's responsibility to review the current policy at the time of purchase.

    Return Policy

    Last Updated: June 2026

    We want you to love what you ordered. If something isn't right, here's everything you need to know.

    30-Day Return Window

    You have 30 days from the date your order is shipped to initiate a return. After this window, we are unable to accept returns.

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    Return Conditions

    To be eligible for a return, items must be:

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    The following items are not eligible for return:

    • Custom-ordered products
    • Programmers and tuners, unless brand new and factory sealed. Any unit that has been connected to a vehicle, registered, or used to flash a tune is not returnable, regardless of packaging condition
    • Open Box listings
    • Installed, modified, painted, coated, welded, cut, or otherwise used products
    • Items marked as Clearance, Closeout, or Final Sale

    Products sold as kits, complete systems, or bundled packages must be returned in their entirety. Partial returns are not accepted.

    Items that include promotional products, discounts, or free gifts must be returned with all included items. If any promotional item is not returned, its retail value may be deducted from the refund.

    We strongly recommend test-fitting all parts before installation, painting, coating, or modification.

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    Return Packaging Requirements

    Do not write on, tape directly to, or affix shipping labels to the manufacturer's packaging.

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    Customers are responsible for ensuring return packages are properly packed and delivered to us. We strongly recommend using a trackable and insured shipping service.

    Fees to Know Upfront

    We believe in being transparent about costs:

    • Restocking Fee: 20% — deducted from all approved return refunds
    • Return Shipping: Buyer's responsibility on all standard returns
    • Cancellation (Installment/Payment Plan): 7% fee to cover transaction costs
    • Cancellation (Credit Card/PayPal): 3.5% processing fee
    • Cancellation (Backordered Parts): 3.5% fee, regardless of payment method, to cover processing costs already incurred

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    • Your order number
    • A description of the issue
    • Clear photos or video of the damage or defect

    Do not install, modify, or use a damaged, defective, or incorrect item. Installation or use of such items constitutes acceptance of the product's condition and may void eligibility for return, replacement, or warranty consideration.

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    Once we receive and inspect your return, refunds are processed within 3–5 business days back to your original payment method.

    Original shipping charges, expedited shipping fees, freight charges, customs fees, duties, taxes, brokerage fees, and other non-refundable service costs are not eligible for reimbursement unless the return is the result of a verified fulfillment error by Berry Performance Sales.

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    Most concerns can be resolved quickly through our customer support team.

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    Email: sales@berryperformancesales.com

    Berry Performance Sales reserves the right to update this policy at any time. Changes take effect immediately upon posting. It is the customer's responsibility to review the current policy at the time of purchase.

    Disclaimer

    All products are sold for off-road use only unless otherwise specified. Buyer assumes all responsibility for installation and operation. Seller is not liable for any incidental, indirect, or consequential damages — including engine failure, labor costs, or vehicle downtime — resulting from the use of any product sold.

    By making a purchase from Berry Performance Sales, you acknowledge and agree to abide by the terms and conditions of these Policies.

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