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    Holley Sniper EFI Main Wiring Harness, Includes Fuel Pump Relay & Coil Input Wire | 558-490

    Vendor: Holley EFI
    Part Number: 558-490
    Save $17.05
    Sale Price $151.95 Regular Price $169.00

    Currently out of 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.
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    The Sniper EFI Main Wiring Harness includes the switched 12V power wire, main battery power and ground, fuel pump relay, coil input wire, and magnetic distributor input wires needed for a Sniper EFI installation. Six feet of 3/8 in. black braided split wire loom is included to protect the wiring and keep the engine bay looking clean.

    Specifications:

    • Product Type: Engine Control Module Wiring Harness
    • Includes: Switched 12V power wire, main battery power/ground, fuel pump relay wire, coil input wire, magnetic distributor input wire
    • Wire Loom: 6 ft. of 3/8 in. black braided split loom included
    • Part Number: 558-490

    FAQ

    What does the Sniper EFI Main Wiring Harness include?

    It includes the switched 12V power wire, main battery power and ground wiring, a fuel pump relay wire, a coil input wire, and a magnetic distributor input wire, plus 6 ft. of 3/8 in. black braided split wire loom.

    What is the wire loom for?

    The included braided split loom protects the harness wiring and keeps the engine bay looking clean and organized.

    What part number is this harness?

    This is Holley part number 558-490.

    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.
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    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.

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    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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