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    • Fuel Cell EFI Pump Module Assembly 6-Bolt Flange 255 LPH Drop-In EFI Holley
    • Fuel Cell EFI Pump Module Assembly 6-Bolt Flange 255 LPH Drop-In EFI Holley
    • Fuel Cell EFI Pump Module Assembly 6-Bolt Flange 255 LPH Drop-In EFI Holley
    • Fuel Cell EFI Pump Module Assembly 6-Bolt Flange 255 LPH Drop-In EFI Holley
    • Fuel Cell EFI Pump Module Assembly 6-Bolt Flange 255 LPH Drop-In EFI Holley
    • Fuel Cell EFI Pump Module Assembly 6-Bolt Flange 255 LPH Drop-In EFI Holley
    • Fuel Cell EFI Pump Module Assembly 6-Bolt Flange 255 LPH Drop-In EFI Holley

    Holley Fuel Cell EFI Pump Module Assembly, 255 LPH Single Pump, 6-Bolt Flange | 12-139

    Vendor: Holley
    Part Number: 12-139
    Save $75
    Sale Price $599.95 Regular Price $674.95

    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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    Holley's Fuel Cell EFI Pump Module Assembly offers a straightforward way to update a racing fuel system to EFI, and it can also serve as an upgrade for carbureted systems when paired with the proper regulator. It drops in as a direct replacement for an existing 6-bolt flange fuel cell cap assembly, with a billet top flange that includes an 8AN inlet port, 10AN outlet port, and fuel filler cap. Pump depth is fully adjustable from 7.5" to 12" deep, and the kit includes all hardware needed for installation.

    Specifications:

    • Application: Universal
    • Average Flow Rating: 255 LPH
    • Average Current Draw: 10.4 Amps
    • Flange Style: 6-Bolt
    • Free Flow Rating: 67 GPH / 255 LPH
    • Fuel Type: Gasoline
    • Inlet Size: 8 AN ORB
    • Outlet Size: 10 AN ORB
    • Maximum Pressure: 80 PSI
    • Single or Dual Pump: Single
    • Voltage: 12V
    • Part Number: 12-139

    Assembly fits common RJS, Jaz, Summit, Jegs, RCI, Speedmaster, and Speedway fuel cells. Fill cap thread is 1 1/2"-12. Supports up to 550 EFI or 700 carbureted horsepower (at 60 PSI, 13.5 volts, 10.4 amp draw).

    FAQ

    What fuel cells does this module fit?

    It is designed as a direct drop-in replacement for existing 6-bolt flange fuel cell cap assemblies, fitting common RJS, Jaz, Summit, Jegs, RCI, Speedmaster, and Speedway fuel cells.

    Can it be used with a carbureted fuel system?

    Yes. While designed for EFI, it can also be used as an upgrade for carbureted systems when paired with the proper regulator.

    How much horsepower can this pump support?

    Up to 550 EFI horsepower or 700 carbureted horsepower at 60 PSI, 13.5 volts, with a 10.4 amp draw.

    Is the pump depth adjustable?

    Yes, the fuel pump depth is fully adjustable from 7.5" to 12" deep to fit different fuel cell sizes.

    What connections does the module include?

    The billet top flange includes an 8AN inlet port, a 10AN outlet port, and a fuel filler cap with a 1 1/2"-12 thread.

    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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