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FUELAB 55501-1 Fuel Pressure Regulator Inlet 845096001865 4-12

55501-1 Fuelab Fuel Pressure Regulator 555 Series 4-12 Psi 8 An Inlet Out

( Brand: Fuelab ), ( Manufacturer Part Number: 55501-1 ), ( Part Type: Fuel Pressure Regulator ), ( Seller: Summit Racing Equipment ), ( UPC: 845096001865 )

Review FUELAB Fuel Pressure Regulator Series 4-12 Psi Inlet Out

The Fuelab 55501-1 Fuel Pressure Regulator is a high-performance, 4-12 inch inlet regulator designed for use in automotive applications. This regulator is engineered to provide precise fuel pressure control for improved engine performance and fuel efficiency.

The Fuelab 55501-1 regulator features a robust, anodized aluminum body that is both lightweight and durable. It is also equipped with a high-quality, brass inlet and outlet ports that ensure a secure connection and resist corrosion. The regulator's adjustment range is from 4 to 12 psi, making it suitable for a wide range of applications.

One of the standout features of this regulator is its adjustability. It is equipped with an easy-to-use, external adjustment knob that allows for quick and accurate pressure adjustments. The regulator also comes with a calibrated pressure gauge, which provides real-time pressure feedback and makes it easy to fine-tune the fuel pressure to meet the specific needs of your engine.

Another advantage of the Fuelab 55501-1 regulator is its high flow design. It is capable of delivering up to 200 gallons per hour (GPH) of fuel flow, making it suitable for use in high-performance applications where increased fuel flow is required. The regulator also features a built-in fuel filter, which helps to remove any contaminants from the fuel line and ensure a clean and consistent fuel supply to the engine.

The Fuelab 55501-1 regulator is easy to install and comes with all necessary hardware for a standard installation. It is also compatible with a wide range of fuel systems, including EFI and carbureted applications. The regulator is backed by a one-year warranty, ensuring peace of mind and protection against any manufacturing defects.

In summary, the Fuelab 55501-1 Fuel Pressure Regulator is a high-quality, adjustable regulator that provides precise fuel pressure control, improved engine performance, and increased fuel efficiency. Its robust design, high flow capability, and easy installation make it a popular choice among automotive enthusiasts and professionals.

The Fuelab 55501-1 Fuel Pressure Regulator is a popular aftermarket option for diesel vehicles, especially those used for towing or high-performance applications. Here are some pros and cons to consider before making a purchase:

Pros:

1. Improved Fuel Pressure: The Fuelab regulator is designed to provide more consistent fuel pressure, which can lead to improved engine performance and efficiency.

2. Adjustable: The regulator allows for adjustable fuel pressure settings, giving users the ability to fine-tune their system for their specific needs.

3. Durable Construction: The regulator is constructed from billet aluminum and stainless steel, making it a durable option for harsh driving conditions.

4. Easy Installation: The Fuelab regulator is relatively easy to install, with clear instructions and straightforward mounting hardware.

Cons:

1. Expensive: Compared to some other fuel pressure regulators on the market, the Fuelab 55501-1 can be quite expensive.

2. May Require Additional Parts: Depending on the specific application, users may need to purchase additional parts, such as fuel lines or fittings, to complete the installation.

3. Potential for Over-Pressurization: If not installed correctly or if the adjustment is set too high, the regulator can lead to over-pressurization, which can damage the fuel system or engine.

Conclusion:

The Fuelab 55501-1 Fuel Pressure Regulator is a high-quality, durable option for diesel vehicle owners looking to improve their fuel system performance. However, its high cost and the potential for over-pressurization require careful consideration before making a purchase. If installed correctly and with the appropriate adjustment, the benefits of improved fuel pressure and customizability can outweigh the initial investment.

Recommendation:

If you are confident in your installation abilities and understand the potential risks of over-pressurization, the Fuelab 55501-1 Fuel Pressure Regulator is a solid investment for improved diesel engine performance. However, if you are unsure or if cost is a concern, there may be more affordable options available that still provide adequate fuel pressure adjustment. It's always a good idea to consult with a professional mechanic or diesel specialist before making a purchase or installation.

Details:

Fitment information may not be available for all products and those without fitment will have a Compatibility link. FUELAB Fuel Pressure Regulator, 555 Series, Inline, Non-return Style, 4-12 psi, Billet Aluminum, Black Anodized, Each. Vehicle Fitment.

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part #: 555011 prices

  • $233.00-$334.84

specifications airfueldepo:

  • brand: Fuelab
  • mpn: 55501-1
  • part type: Fuel Pressure Regulator
  • seller: Summit Racing Equipment
  • upc: 845096001865

general airfueldepo:

  • Car Truck Parts Accessories > Air Fuel Delivery > Other Air Fuel Delivery
  • condition: New

shipping airfueldepo:

  • cost: $0.00
  • transit: 3-5 Days
  • type: Fixed
  • service: Economy
  • class: Economy

payments airfueldepo:

  • other
  • credit card: Diners-club
  • wallet: Apple-pay

returns airfueldepo:

  • policy: Returns Accepted
  • paid by: Seller
  • time: 60 Days

offer airfueldepo:

  • quantity: 10
  • sold: 0
  • availability: In Stock
  • options: Ship-to-home
  • started: August 22, 2025

seller airfueldepo:

  • rating: 98.7%
  • city: Tallmadge, Ohio
  • # reviews: 1128831
part type: fuel pressure regulator, seller: summit racing equipment,
category: auto parts > car truck parts accessories > air fuel delivery, sku: 9818292330589693,

Fuelab 55501-1 Is Similar To:

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4 offers $233.00–$334.84 USD
  • Offer #1: $233.00 price + $0.00 shipping estimate = $233.00* total. FUELAB Fuel Pressure Regulator, 555 Series, Inline, Non-return Style, 4-12 psi, Billet Aluminum, Black Anodized, Each.FREE SHIPPING
  • Offer #2: $277.51 price + $25.34 shipping estimate = $302.85* total. Manufacturer Part Number: . Regulator Features.+$25.34 shipping
  • Offer #3: $334.84 price + $24.60 shipping estimate = $359.44* total. This blocking style fuel pressure regulator is a precision tool for regulating fuel pressure on carburettor fed engines. All Fuelab products are covered by a 'Forever Fixed warranty.+$24.60 shipping
  • Offer #4: $334.84 price + $24.60 shipping estimate = $359.44* total. 10.05.2026, 10:04:33.+$24.60 shipping

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