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    • ARP300-8241.jpg

    ARP Stamped Steel Rocker Arm Nut Kit, 3/8-24 x 1.200 in, .620 in Shank, Set of 16 | 300-8241

    Part Number: 300-8241
    Regular Price $88.99

    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.
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    This ARP rocker arm nut kit is designed for stamped steel rockers, featuring 3/8-24 chromoly nuts with a 0.620 in shank diameter, 1.200 in overall length, and black oxide finish.

    Specifications:

    • Thread: 3/8-24 in
    • Shank Diameter: 0.620 in
    • Length: 1.200 in
    • Material: Chromoly
    • Finish: Black Oxide
    • Quantity: Set of 16

    Applications:

    • Stamped Steel Rockers

    FAQ

    What rocker style is this nut kit designed for?

    It's designed for stamped steel rockers.

    What thread size do these rocker arm nuts use?

    They are threaded 3/8-24 in.

    What is the shank diameter and overall length?

    The shank measures 0.620 in in diameter and 1.200 in overall length.

    What material and finish are the nuts?

    Chromoly steel with a black oxide finish.

    How many nuts are included?

    This kit includes a set of 16 nuts.

    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.

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