Skip to Product Info
    • b21c1bdaed78104db70c85b87bc2a47592f26a4d.jpg
    • 3272cfa0ad316741a359b823d7fb61e6739d3d77.jpg
    • 84e4aca0c6c831c0e48e537fcefa234c596989cf.jpg
    • 90ab99942779031917c2c063410c2e6d594fecb5.jpg
    • b59e780207c9803e1c3d4673fc918f2972223106.jpg
    • bdce83a8319b90173da11d8f9b1d9c5d6ee40de2.jpg
    • c0e751c262c1e935f56b5d7a271911e6fdf7d1cb.jpg
    • d1b0003d9f30e0cedbf07a023efe5def2ae811c7.jpg
    • FUEL Regulator/damper Regulator/damper, Extended RANGE 40-100PSI Holley
    • FUEL Regulator/damper Regulator/damper, Extended RANGE 40-100PSI Holley
    • FUEL Regulator/damper Regulator/damper, Extended RANGE 40-100PSI Holley
    • FUEL Regulator/damper Regulator/damper, Extended RANGE 40-100PSI Holley
    • FUEL Regulator/damper Regulator/damper, Extended RANGE 40-100PSI Holley
    • FUEL Regulator/damper Regulator/damper, Extended RANGE 40-100PSI Holley
    • FUEL Regulator/damper Regulator/damper, Extended RANGE 40-100PSI Holley
    • FUEL Regulator/damper Regulator/damper, Extended RANGE 40-100PSI Holley
    Sale!

    Holley Fuel Pressure Regulator/Damper, Extended Range 40-100 PSI, 8AN | 12-1001

    Vendor: Holley
    Part Number: 12-1001
    Save $47
    Sale Price $371.95 Regular Price $418.95

    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
    • American Express
    • Apple Pay
    • Diners Club
    • Discover
    • Google Pay
    • Mastercard
    • PayPal
    • Shop Pay
    • Venmo
    • Visa
    Share to:

    Fuel pulse dampers work in tandem with the fuel pressure regulator to further control fuel pressure in an EFI system, smoothing out the pressure pulsations caused by injectors opening and closing and by the fuel pump operating — pulsations too fast to see on an analog gauge but that can still disrupt fuel delivery.

    Specifications:

    • Category: Air and Fuel Delivery
    • Product Type: Fuel Pressure Regulator/Damper
    • Sub Category: Carburetion
    • Style: Billet Aluminum
    • Finish: Anodized Black
    • Fuel Type: Gasoline / Ethanol / Methanol / E85
    • Pressure Range: 40-100 PSI
    • Inlet/Outlet Size: 3/4-16 Female O-Ring (8 AN ORB)
    • Warranty: Manufacturer's Limited 90 Day Warranty
    • Part Number: 12-1001

    Built from fully anodized billet aluminum with stainless steel springs and a fluorosilicone diaphragm for broad fuel compatibility. Includes fittings for the damper/regulator and direct-mount dampers, a 1/8-inch NPT port for a mechanical pressure gauge or transducer, and a vacuum fitting with one foot of hose for vacuum referencing. Assembled and tested in the USA.

    FAQ

    What does a fuel pulse damper do?

    It works with the fuel pressure regulator to smooth out pressure pulsations from the injectors and fuel pump that can disrupt fuel delivery.

    What pressure range does this unit cover?

    40-100 PSI, an extended range for high-volume fuel systems.

    What fuels is this compatible with?

    Gasoline, ethanol, methanol, and E85.

    What's included for gauge installation?

    A 1/8-inch NPT port on the body for a mechanical pressure gauge or pressure transducer, plus a vacuum fitting and one foot of hose for vacuum referencing.

    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.

    Recently Viewed