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Free shipping is available within the lower 48 states for orders totaling $199 or more. Simply select the free shipping option during checkout. Even though expedited shipping is not free we will still discount the free shipping option from the expedited shipping cost for you. This offer excludes shipments going to Alaska, Hawaii, Military Boxes, and items too large to ship via UPS or USPS. These items are usually large freight or bulky items such as engine blocks, etc.

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  • Eagle Forged 4340 Chromoly 100mm Crankshaft (6 Bolt DSM) 2439375900A6 - Modern Automotive Performance
  • Eagle Forged 4340 Chromoly 100mm Crankshaft (6 Bolt DSM) 2439375900A6 - Modern Automotive Performance

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    Eagle Forged 4340 Chromoly 100mm Crankshaft (6 Bolt DSM) 2439375900A6

    MAP Loyalty Program: Earn $ 13.69 Toward Next Purchase!
    PART# EAG CRS2439375900A6  

    $684.25   $892.50
    You Save 23% ($208.25)

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    Fits Your

    Eagle Forged 4340 Chromoly 100mm Crankshaft (6 Bolt DSM) 2439375900A6 - Modern Automotive Performance

    Exceptional quality at a reasonable price.

    These forged 4340 steel crankshafts from Eagle Specialty Products are great for high-performance applications. They feature non-twist forging, go through a multi-stage heat-treatment process, and are stress-relieved and shot-peened. These cranks are X-rayed, magnafluxed, and sonic tested, so you know you're getting a top-quality piece. Each crankshaft has cross-drilled and chamfered oil holes for improved oiling, a .125 in. radius on rod and main journals for increased strength, and the journals are precision-ground and micro-polished to less than 5 RA. A target bobweight of +/- 2 percent greatly reduces balancing time.

    Customer Reviews

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    Manufacturing beaty

    Wonderful craftsmanship and perfect strength for most any build!

    MAP Limited Lifetime Warranty

    1.) All MAPerformance in-house fabricated parts include a Limited Lifetime Warranty for the Original Purchaser. This warranty only applies to the original purchaser and is non-transferrable. If the product fails it would need to be determined by MAPerformance that it is due to manufacturing defects in materials or workmanship.

    2.) This does not cover normal wear and tear. Improper use, modification, or abuse voids this warranty. MAPerformance will not be held responsible for additional costs due to the failure of a product (cost of sale, towing, labor, etc.). Warranty claims must be submitted to MAPerformance for review.

    3.) You must create a support ticket to acquire your return authorization number prior to returning the product.

    4.) Warranty claims will not be honored if the product was not purchased through an approved dealer.

    For warranty evaluation please create a support ticket via this form here.

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    Unfortunately due to vendor restrictions we are unable to sell this brand within Australia or the UK. If you have any questions, feel like you received this message in error or would like suggestions on other brands please contact us here.

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    Unfortunately due to vendor restrictions we are unable to sell this brand within Australia. If you have any questions, feel like you received this message in error or would like suggestions on other brands please contact us here.

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    Unfortunately due to vendor restrictions we are unable to sell this brand within your country. If you have any questions, feel like you received this message in error or would like suggestions on other brands please contact us here.

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    Unfortunately due to vendor restrictions we are unable to sell this brand within California. If you have any questions, feel like you received this message in error or would like suggestions on other brands please contact us here.

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