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    • TFS2129NB.jpg

    Tuff Stuff 9 in Dual Diaphragm Master Cylinder & Booster | 1.125 in Bore Gold Zinc | 2129NB

    Vendor: Tuff Stuff Performance Accessories
    Part Number: 2129NB
    $228.99

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    The Tuff Stuff 2129NB is a 9 in outside diameter dual diaphragm master cylinder and booster kit. It pairs a 1.125 in bore master cylinder with a dual integral reservoir, uses a steel housing with a gold zinc plated finish, and ships as a complete kit.

    • Type: master cylinder and booster kit
    • Booster: 9 in OD, dual diaphragm
    • Bore: 1.125 in
    • Reservoir: dual integral
    • Housing material: steel
    • Finish: gold zinc plated
    • Sold as: kit
    • Part number: 2129NB

    Vehicle Applications

    • 1982 Chevrolet Corvette V8 5.7 350
    • 1981 Chevrolet Corvette V8 5.7 350
    • 1980 Chevrolet Corvette V8 5.0 305
    • 1980 Chevrolet Corvette V8 5.7 350
    • 1979 Chevrolet Corvette V8 5.7 350
    • 1978 Chevrolet Corvette V8 5.7 350
    • 1977 Chevrolet Corvette V8 5.7 350
    • 1976 Chevrolet Corvette V8 5.7 350
    • 1975 Chevrolet Corvette V8 5.7 350
    • 1974 Chevrolet Corvette V8 5.7 350
    • 1974 Chevrolet Corvette V8 7.4 454
    • 1973 Chevrolet Corvette V8 5.7 350
    • 1973 Chevrolet Corvette V8 7.4 454
    • 1972 Chevrolet Corvette V8 5.7 350
    • 1972 Chevrolet Corvette V8 7.4 454
    • 1971 Chevrolet Corvette V8 5.7 350
    • 1971 Chevrolet Corvette V8 7.4 454
    • 1970 Chevrolet Corvette V8 5.7 350
    • 1970 Chevrolet Corvette V8 7.4 454
    • 1969 Chevrolet Corvette V8 5.7 350
    • 1969 Chevrolet Corvette V8 7.0 427
    • 1968 Chevrolet Corvette V8 5.3 327
    • 1968 Chevrolet Corvette V8 5.4 327

    FAQ

    What bore size is the 2129NB master cylinder?

    It has a 1.125 in bore.

    What is the booster diameter on the 2129NB?

    The booster is 9 in in outside diameter.

    How many diaphragms does the 2129NB use?

    It is a dual diaphragm design.

    Shipping Policy
    • Free shipping on orders over $99 (excludes freight shipments).
    • In-stock orders typically ship within 1 to 2 business days. Weekend and holiday orders are processed the next business day.
    • Orders ship from Defiance, Ohio and a nationwide network of warehouses and manufacturers.
    • Items showing an ETA are not in stock yet. ETAs come from the manufacturer and can change.
    • No P.O. Boxes. International orders need a shipping quote, so email us first.

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    Return Policy
    • 30-day return window from the ship date. Returns must be approved first; email sales@berryperformancesales.com with your order number.
    • Items must be unused, complete and in the original packaging.
    • A 20% restocking fee applies, and return shipping is paid by the buyer.
    • Not returnable: installed or modified parts, opened or used programmers and tuners, custom orders, Open Box, and Clearance or Final Sale items.
    • Damaged, defective or incorrect items must be reported within 48 hours of delivery with photos.

    Read the full Return Policy
    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.

    For any questions or concerns, please contact us — we’re always happy to help.

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