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    Kawasaki KX400 Parts (1975-1978) | Motocross Dirt Bike

    Find OEM and aftermarket Kawasaki KX400 replacement parts for 1975-1978 KX400 models where fitment applies. Shop maintenance, repair, and restoration parts with clearer model-specific coverage.

    The Kawasaki KX400 family comes from Kawasaki’s motocross lineup, where race-focused handling, rebuildable engines, and strong aftermarket support keep these bikes relevant for riders, racers, and restorers.

    Popular Kawasaki KX400 searches include top-end parts, carburetor parts, gasket sets, and fork seals. Check year, trim, and application details carefully, since fitment can vary across generations and model variants.

    Kawasaki KX400 Parts for Vintage Motocross Service & Rebuilds

    Old Bike Barn stocks model-specific OEM and aftermarket Kawasaki KX400 parts so riders can handle service work, repairs, and restorations with less guesswork. Clear fitment coverage helps narrow the right part faster.

    Common categories on this page include top-end parts, carburetor parts, gasket sets, fork seals, and brake parts.

    This Kawasaki KX400 collection is organized around KX400 applications where fitment applies, helping riders compare parts with more confidence for maintenance, repair, and restoration. From fuel and brake work to suspension and electrical service, the focus stays on reliable fitment and long-term durability.

    Why Riders Choose Kawasaki KX400 Parts from Old Bike Barn

    Riders choose Old Bike Barn for Kawasaki KX400 parts because the catalog emphasizes model-specific fitment, hard-to-find OEM and aftermarket options, and practical support from people who understand Kawasaki applications.

    Kawasaki KX400 parts questions

    What model years does this Kawasaki KX400 parts collection cover?
    This collection covers Kawasaki KX400 models from 1975 to 1978. Because specifications changed across that span, check your year, model code, and any prior repairs against each product's listed application before ordering.
    What kinds of Kawasaki KX400 parts are in this collection?
    You will find engine gaskets and seals, brake components, and suspension and chassis parts. Availability shifts as stock moves, so the live product grid above is the accurate list at any given moment.
    Are these Kawasaki KX400 parts OEM or aftermarket?
    Both. Old Bike Barn stocks genuine OEM replacements alongside quality aftermarket parts, and each listing states which it is. OEM suits a period-correct restoration; aftermarket often costs less or offers an upgrade over the original design.
    How do I confirm a part fits my Kawasaki KX400?
    Check the application details on the product page against your year, model code, and engine or frame number. Older machines are often not original, so confirm the part you are replacing rather than assuming factory spec. If you are unsure, contact us before ordering.
    How fast does Old Bike Barn ship?
    Orders ship from our warehouse on regular business days, and shipping is free on orders over $50 within the United States. Tracking is emailed as soon as your order leaves.