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    • MSD Two Step Module Selector, Dual RPM/Degree Module Switch | 8739
    • MSD Two Step Module Selector, Dual RPM/Degree Module Switch | 8739
    • MSD Two Step Module Selector, Dual RPM/Degree Module Switch | 8739
    • MSD Two Step Module Selector, Dual RPM/Degree Module Switch | 8739
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    • Two Step Module Selector The MSD Module Selectors Allow You To Choose Two Different Rpm Limits That Can Be Activated At Different Times. With This Ability, The Possibilities Are Endless MSD Ignition
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    Sale!

    MSD Two Step Module Selector, Dual RPM/Degree Module Switch | 8739

    Vendor: MSD
    Part Number: 8739
    Save $19
    Sale Price $149.95 Regular Price $168.95

    Available to order. In-stock orders typically ship in 1 to 2 business days.

    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 module selector switches between two different rpm or degree modules, with each module activated by applying 12 volts to its corresponding wire. It works with either a Soft Touch Rev Control or any MSD Timing Control that uses plug-in modules.

    Specifications:

    • Category: Ignition
    • Product Type: Module Selector
    • Switches between two rpm or degree modules
    • Compatible with Soft Touch Rev Control or MSD Timing Controls using plug-in modules
    • Allows a separate launch rev limiter and high-speed rev limiter
    • Part Number: 8739

    FAQ

    What does the 8739 module selector do?

    It switches between two different rpm or degree modules, activated by applying 12 volts to the corresponding wire.

    What is it compatible with?

    It works with a Soft Touch Rev Control or any MSD Timing Control that uses plug-in modules.

    Can it run a separate launch and high-speed limiter?

    Yes, it allows one module to serve as a launch rev limiter and the other as a high-speed rev limiter.

    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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