Skip to Product Info
    • Cometic 84-91 Harley-Davidson Ebo Big Twin Top End Gasket Kit

    Cometic 84-91 Harley-Davidson Ebo Big Twin Top End Gasket Kit

    Vendor: Cometic Gasket
    Part Number: CGSC9747
    Regular Price $140.45

    In Stock

    Not sure it fits your vehicle?
    Email sales@berryperformancesales.com with your year, make, model and engine, and we'll help you check fitment before you order.
    Fast Fulfillment: In-stock orders typically ship within 1 to 2 business days.
    Free Shipping on Orders Over $99 | Excludes freight shipments
    International Shipping Available: email sales@berryperformancesales.com for a quote.
    Payment & Security

    Secure, encrypted checkout. Card details go straight to the payment processor and are never stored by us.

    • Amazon
    • American Express
    • Apple Pay
    • Diners Club
    • Discover
    • Google Pay
    • Mastercard
    • PayPal
    • Shop Pay
    • Venmo
    • Visa
    Share to:

    Today's lightweight engines are producing more horsepower, higher cylinder pressures, clamp loads and extreme temperatures. Our commitment is to provide innovative, quality gaskets while maximizing your engine's power and performance. Cometic's gaskets are proudly made in the USA with materials manufactured on American soil. We are constantly updating and adding models to our ever growing library of gaskets for Powersports, Street Bikes, Snowmobiles, Harley-Davidson and V-Twin applications.

    • All of Cometic's gaskets and seals have been tested on both the street and the track as well as vigorous Dyno shakedowns
    • No Additional Sealer Needed

    This Part Fits:

    Year Make Model Submodel
    1985 Harley-Davidson FLH Electra Glide Base
    1984,1987-1991 Harley-Davidson FLHS Electra Glide Sport Base
    1986-1987 Harley-Davidson FLHT Electra Glide Standard Base
    1985-1991 Harley-Davidson FLHTC Electra Glide Classic Base
    1989-1991 Harley-Davidson FLHTCU Electra Glide Ultra Classic Base
    1985 Harley-Davidson FLHX Electra Glide Special Base
    1986-1990 Harley-Davidson FLST Heritage Softail Base
    1988-1991 Harley-Davidson FLSTC Heritage Softail Classic Base
    1990-1991 Harley-Davidson FLSTF Fat Boy Base
    1985-1991 Harley-Davidson FLTC Tour Glide Classic Base
    1989-1991 Harley-Davidson FLTCU Tour Glide Ultra Classic Base
    1991 Harley-Davidson FXDB-S Dyna Glide Sturgis Base
    1985 Harley-Davidson FXEF Fat Bob Base
    1987-1991 Harley-Davidson FXLR Low Rider Custom Base
    1986-1991 Harley-Davidson FXR Super Glide II Base
    1985,1987 Harley-Davidson FXRC Low Rider Chrome Base
    1986 Harley-Davidson FXRD Sport Glide Grand Touring Base
    1984-1991 Harley-Davidson FXRS Low Glide Base
    1990-1991 Harley-Davidson FXRS-Conv Low Rider Sport Convertible Base
    1986-1991 Harley-Davidson FXRS-SP Low Rider Sport Base
    1984-1991 Harley-Davidson FXRT Sport Glide Base
    1985 Harley-Davidson FXSB Low Rider - Belt Base
    1984-1991 Harley-Davidson FXST Softail Standard Base
    1986-1991 Harley-Davidson FXSTC Softail Custom Base
    1988-1991 Harley-Davidson FXSTS Springer Softail Base
    1985-1986 Harley-Davidson FXWG Wide Glide Base
    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.

    Read the full Shipping Policy

    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.

    Recently Viewed