• 12-137_0118117.jpg
  • 12-137_0218117.jpg
  • 12-137_0518117.jpg
  • 12-137_0618117.jpg
  • Diecast In-Tank Retrofit Fuel Module W/return 450 LPH Drop-In Retrofit EFI Fuel System W/hydramat Supports Up to 875 EFI or 1100 CARB HP (At 60 PSI at 13.5 Volts / 16.9 AMP Draw) of Course There Are Many Variables, Estimates Are Based on Gasoline Holley
  • Diecast In-Tank Retrofit Fuel Module W/return 450 LPH Drop-In Retrofit EFI Fuel System W/hydramat Supports Up to 875 EFI or 1100 CARB HP (At 60 PSI at 13.5 Volts / 16.9 AMP Draw) of Course There Are Many Variables, Estimates Are Based on Gasoline Holley
  • Diecast In-Tank Retrofit Fuel Module W/return 450 LPH Drop-In Retrofit EFI Fuel System W/hydramat Supports Up to 875 EFI or 1100 CARB HP (At 60 PSI at 13.5 Volts / 16.9 AMP Draw) of Course There Are Many Variables, Estimates Are Based on Gasoline Holley
  • Diecast In-Tank Retrofit Fuel Module W/return 450 LPH Drop-In Retrofit EFI Fuel System W/hydramat Supports Up to 875 EFI or 1100 CARB HP (At 60 PSI at 13.5 Volts / 16.9 AMP Draw) of Course There Are Many Variables, Estimates Are Based on Gasoline Holley
  • Diecast In-Tank Retrofit Fuel Module W/return 450 LPH Drop-In Retrofit EFI Fuel System W/hydramat Supports Up to 875 EFI or 1100 CARB HP (At 60 PSI at 13.5 Volts / 16.9 AMP Draw) of Course There Are Many Variables, Estimates Are Based on Gasoline Holley
    • 12-137_0118117.jpg
    • 12-137_0218117.jpg
    • 12-137_0518117.jpg
    • 12-137_0618117.jpg
    • Diecast In-Tank Retrofit Fuel Module W/return 450 LPH Drop-In Retrofit EFI Fuel System W/hydramat Supports Up to 875 EFI or 1100 CARB HP (At 60 PSI at 13.5 Volts / 16.9 AMP Draw) of Course There Are Many Variables, Estimates Are Based on Gasoline Holley
    • Diecast In-Tank Retrofit Fuel Module W/return 450 LPH Drop-In Retrofit EFI Fuel System W/hydramat Supports Up to 875 EFI or 1100 CARB HP (At 60 PSI at 13.5 Volts / 16.9 AMP Draw) of Course There Are Many Variables, Estimates Are Based on Gasoline Holley
    • Diecast In-Tank Retrofit Fuel Module W/return 450 LPH Drop-In Retrofit EFI Fuel System W/hydramat Supports Up to 875 EFI or 1100 CARB HP (At 60 PSI at 13.5 Volts / 16.9 AMP Draw) of Course There Are Many Variables, Estimates Are Based on Gasoline Holley
    • Diecast In-Tank Retrofit Fuel Module W/return 450 LPH Drop-In Retrofit EFI Fuel System W/hydramat Supports Up to 875 EFI or 1100 CARB HP (At 60 PSI at 13.5 Volts / 16.9 AMP Draw) of Course There Are Many Variables, Estimates Are Based on Gasoline Holley
    • Diecast In-Tank Retrofit Fuel Module W/return 450 LPH Drop-In Retrofit EFI Fuel System W/hydramat Supports Up to 875 EFI or 1100 CARB HP (At 60 PSI at 13.5 Volts / 16.9 AMP Draw) of Course There Are Many Variables, Estimates Are Based on Gasoline Holley
    Sale!

    Holley Diecast In-Tank RetroFit Fuel Module w/Return, 450 LPH | 12-137

    Vendor: Holley
    Part Number: 12-137
    Save $113
    $899.95 $1,012.95

    Available to order. In-stock orders typically ship in 1 to 2 business days.

    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.
    Payment & Security

    Secure, encrypted checkout. Card details go straight to the payment processor and are never stored by us.

    • Amazon
    • Amazon
    • American Express
    • Apple Pay
    • Diners Club
    • Discover
    • Google Pay
    • Mastercard
    • PayPal
    • Shop Pay
    • Venmo
    • Visa
    Share to:
    View Full Details
    Product DetailsFAQReviewsRelated Products

    This universal in-tank retrofit fuel module converts a factory tank or fuel cell to an in-tank EFI fuel system without welding or fabrication. The die cast pump hanger controls pump vibration in a low-profile 5" diameter design, and an integrated Holley Hydramat keeps fuel delivery consistent even at low fuel levels.

    Specifications:

    • Application: Universal
    • Category: Air and Fuel Delivery
    • Average/Free Flow Rating: 450 LPH
    • Fuel Type: Gasoline, E85
    • Inlet Size: 1/4" NPT
    • Outlet Size: 1/4" NPT
    • Material: Die Cast Aluminum
    • Minimum Fuel Tank Depth: 7.5"
    • Part Type: Fuel Pump Module Assembly
    • Product Type: Fuel Pump Module
    • Sub Category: Fuel Pumps and Related Components
    • Warranty: Manufacturer's Limited 90 Day Warranty
    • Part Number: 12-137

    Supports up to 875 EFI or 1100 carbureted HP at 60 PSI/13.5 volts. Holley recommends pairing it with its 12-753 30 Amp fuel pump relay and a minimum of 12 gauge wire; maximum line/fitting size is 6AN due to space limitations between the unit and fuel tank.

    FAQ

    How much horsepower can this module support?

    Up to 875 EFI or 1100 carbureted HP at 60 PSI and 13.5 volts, though results vary by fuel system design.

    What tank depths does it fit?

    Any fuel tank from 7.5" to 12" deep.

    What relay does Holley recommend?

    The Holley 12-753 30 Amp fuel pump relay with a minimum of 12 gauge wire.

    Does installation require welding?

    No, it installs with basic tools and no welding or fabrication.

    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.

    Related Products

    Recently Viewed