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    • Speed Engineering LS1 Throttle Position Oil Pressure Coolant Sensor Harness Extension 31-1023
    • Speed Engineering LS1 Throttle Position Oil Pressure Coolant Sensor Harness Extension 31-1023
    • Speed Engineering LS1 Throttle Position Oil Pressure Coolant Sensor Harness Extension 31-1023
    • Speed Engineering LS1 Throttle Position Oil Pressure Coolant Sensor Harness Extension 31-1023
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    Speed Engineering LS1 Throttle Position, Oil Pressure & Coolant Sensor Harness Extension — 24" Length | 3-Wire Oil Pressure | 31-1023

    Part Number: 31-1023
    Regular Price $14.99

    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 24" harness extension lengthens the LS1 throttle position sensor, oil pressure sensor (3-wire), and coolant sensor connections. It plugs into the factory harness and works with different GM applications.

    ⚠️ Important Notes:

    • May be compatible with other GM Gen 3 LS series engines. Double check the plug-in connections to confirm fitment

    Features:

    • Extends Throttle Position, Oil Pressure and Coolant Sensor Connections
    • 3-Wire Oil Pressure Sensor Connector
    • 24" Length
    • Factory Harness Plug-In

    FAQ

    Which sensors does this extension cover?

    It extends the throttle position sensor, the 3-wire oil pressure sensor, and the coolant sensor connections.

    How long is the extension?

    The extension is 24" long.

    Will it fit other LS engines besides the LS1?

    It may be compatible with other GM Gen 3 LS series engines. The plug-in connections should be checked to confirm fitment.

    Does it plug into the factory harness?

    Yes. The extension plugs into the factory harness connectors.

    Is this part street legal?

    No. Speed Engineering sells this harness extension as a race-only product intended for competition use only. Installation on a street-driven vehicle may violate the Clean Air Act (42 U.S.C. 7522(a)(3)).


    ⚠️ Race Use Only: This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3).

    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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