ARP 156-5401 Main Stud Kit Ford 4.6 5.4 Modular 12 Point 8740 Chromoly

Item Description

ARP Main Stud Kit – High Performance Chromoly, 12-Point

Strengthen your engine’s bottom end with the ARP 156-5401 Main Stud Kit, engineered for Ford 4.6L and 5.4L Modular engines. Designed for performance and durability, this kit eliminates main cap walk and fretting, ensuring superior crankshaft stability under high RPM and load conditions.

Manufactured from premium 8740 chrome moly steel, these studs are heat-treated to approximately 200,000 PSI tensile strength for maximum durability. Featuring threads rolled after heat treatment, they provide up to 10x greater fatigue strength compared to conventional fasteners.

The stud design allows for more accurate and consistent torque loading, improving bearing alignment and engine reliability. Each kit includes hardened parallel-ground washers and high-quality 12-point nuts, ensuring even load distribution and precise installation.

Ideal for performance builds, racing applications, and engine rebuilds, this kit delivers professional-grade reliability trusted by engine builders worldwide.


Features
  • Designed for Ford 4.6L / 5.4L Modular engines
  • High Performance 8740 chrome moly steel construction
  • Heat-treated to approx. 200,000 PSI tensile strength
  • Threads rolled after heat-treat for superior fatigue life
  • Up to 10x stronger fatigue resistance vs standard bolts
  • Eliminates main cap walk and fretting
  • Provides accurate and consistent torque loading
  • 12-point nut design for precise torque control
  • Includes hardened washers for even load distribution
  • Ideal for performance and racing applications
  • Item Specifics :

    • Brand: ARP
    • Manufacturer Part Number: 156-5401
    • Product Type: Main Stud Kit
    • Series: High Performance 8740 Series
    • Material: 8740 Chrome Moly Steel
    • Fastener Type: Stud Kit
    • Head Type: 12-Point
    • Finish: Black Oxide
    • Engine Compatibility: Ford 4.6L 5.4L Modular
    • Main Type: 2-Bolt Main
    • Windage Tray: Not Included / Not Supported
    • Washers Included: Yes
    • Nuts Included: Yes
    • Performance Type: High Performance / Racing
    • Fitment Type: Performance/Direct Replacement
  • About Us

    Welcome to our eBay store!

    We are dedicated to provide a wide variety of auto parts with excellent customer experience. We strive harder every day in order to achieve and grow to become a more trusted eBay Seller Store. We are customer focused business where customer satisfaction is our top priority. We work directly with manufacturers, brand owners as their authorized dealer to deliver to you authentic products at the lowest cost available in the market. Our goal is to provide you with the best quality products with 100% confidence, Money back GUARANTEED!

    We only sell genuine brand name products and all products in our store are in NEW condition only. The product Images are for Reference Purpose Only, in some cases actual product may vary from their picture due to product enhancement or other reasons.
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    Payment

    Payment must be made via PayPal or a major credit/debit card. For security, we ship only to confirmed addresses; orders with unconfirmed addresses may be cancelled.

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    Shipping

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    Terms

    To the fullest extent permitted by law, Agile Auto Parts USA is not responsible for any labor, repair, diagnostic, rental, towing, loss of use, or other incidental or consequential costs arising from parts that are faulty, defective, incorrect, or otherwise cause additional expense.

    We are a third-party seller and offer the full manufacturers warranty where applicable. Please review the product-specific warranty terms and conditions on the manufacturers website before purchasing; coverage, duration, and claim procedures vary by brand. If an item is defective upon receipt, you must contact the manufacturer directly for a replacement under their warrantywe do not accept defective items as returns.

    Listing photos may include generic/stock images. The actual product may vary in appearance, packaging, or minor details while maintaining the same fit and function specified by the part number.

    Returns

    60-Day Free Returns for Worry-Free Shopping
    We want you to be completely confident in your purchase. Thats why we offer a 60-day free return policy. If for any reason youre not 100% satisfied, you can return your item within 60 days of delivery for a full refundno restocking fees, no hassle. Well even cover the return shipping cost, 20% restocking fee may apply.

    All items must be returned unused in original packaging along with the receipt.

    Please be advised that any product that has been requested to be returned should include the original packaging and not to be used, test fitted, or opened as we cannot accept used products and there may be additional fees associated with attempted return of such items.

    When returning items that are sold as a set or include additional accessories or parts, please ensure all components are included. If any items are missing from the returned set, your refund will not be processed.

    Key points:

    Complete sets only:
    If you purchased a product that is marketed as a set (like a tool kit or a furniture set), you must return all items within that set to receive a full refund.

    Missing parts not accepted:
    This applies to individual items that come with additional parts or accessories - all components must be returned together.

    No refund for incomplete returns:
    If any part of a set or accessory is missing when you return the item, your refund will be denied.


    All items are shipped from our distributors new in the original packaging. Please contact us by email in the event that your item arrives with damage. We can replace the item right away with pictures of the damage. Please do not use the eBay Return Service as you will most likely not be returning your item. If you just email us, we can have a replacement or refund right out to you. We don't use the return service as we have our own replacement/refund service that is easier, better and faster.

    We are a third-party seller and we offer full manufacturer warranty.

    Please make sure you read product specific, warranty terms & conditions of the item from manufacturer website before purchasing. If an item is defective when you receive the item you need to contact manufacturer for a replacement. We do not accept defective items as returns.

    Our listings have generic images, therefore the actual products may vary.
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