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    Vibrant LS Engine Fuel Pressure Adapter | -4 AN Female to 1/8 in NPT Female, Aluminum | 16791

    Part Number: 16791
    Save $5.21
    Sale Price $15.29 Regular Price $20.50

    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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    Vibrant Performance LS engine fuel pressure adapter allows an aftermarket fuel pressure gauge to be installed on the factory fuel rail of a Chevy LS engine once the Schrader valve is removed. It has a -4 AN female flare on one end and a 1/8 in NPT female thread on the other, which also makes it useful for other gauge and sensor applications. It is machined from 6061 aluminum and finished in black anodized.

    • Type: Fuel pressure gauge adapter fitting
    • AN size: -4 AN female flare
    • NPT size: 1/8 in female
    • Material: 6061 aluminum
    • Finish: Black anodized
    • Application: Chevy LS factory fuel rail (remove Schrader valve)
    • Part number: 16791

    FAQ

    What is this adapter for?

    It lets an aftermarket fuel pressure gauge be plumbed into the factory fuel rail of a Chevy LS engine after the Schrader valve is removed.

    What threads does it have?

    It has a -4 AN female flare on one end and a 1/8 in NPT female thread on the other.

    Can it be used off the LS rail?

    Yes. The -4 AN to 1/8 in NPT female combination makes it useful for other gauge and sensor plumbing as well.

    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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