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    • Speed Engineering LS Coolant Temperature Sensor Adapter 3/8" NPT 26-1109
    • Speed Engineering LS Coolant Temperature Sensor Adapter 3/8" NPT 26-1109
    • Speed Engineering LS Coolant Temperature Sensor Adapter 3/8" NPT 26-1109
    • Speed Engineering LS Coolant Temperature Sensor Adapter 3/8" NPT 26-1109
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    Speed Engineering LS Coolant Temperature Sensor Adapter — M12x1.5 Male to 3/8" NPT Female | Billet, Washer Included | 26-1109

    Part Number: 26-1109
    Regular Price $9.99

    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 Speed Engineering adapter is made for LS coolant temperature sensor ports. It threads into an M12x1.5 port and provides a 3/8" NPT female thread, so a sensor or fitting with that thread can be installed. The adapter is billet construction and comes with a washer.


    Features:

    • M12x1.5 Male to 3/8" NPT Female
    • Billet Construction
    • Washer Included
    • For LS Engines

    FAQ

    What threads does this adapter have?

    It has an M12x1.5 male thread on one side and a 3/8" NPT female thread on the other.

    What is this adapter used for?

    It is used in an LS coolant temperature sensor port to accept a sensor or fitting with a 3/8" NPT thread.

    Does it come with a sealing washer?

    Yes. A washer is included with the adapter.

    What is the adapter made from?

    The adapter is billet construction.

    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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