Fuel System Parts - Fuel Pressure Regulators

Adjustable Carbureted Regulator from 5-12 lbs

Aeromotive carbureted fuel pressure regulators are true billet regulators. A convoluted diaphragm maximizes piston stroke and increases flow - without stressing the diaphragm. Every Aeromotive carbureted regulator incorporates a poppet design unique to that regulator, and we fabricate the diaphragms from our proprietary elastomer material Precision engineering and manufacturing translate into tight fuel pressure control.

Note: Uses -6 O-ring style fittings

Aeromotive 2-Port Adjustable Fuel Pressure Regulators

CNC-machined and adjustable from 5-12 psi, Aeromotive 2-Port Fuel Pressure Regulators are an excellent upgrade from the competition. Ideal for carbureted and dedicated nitrous applications where higher flow and quicker response is desired. Re-seats after needle shuts down to prevent pressure creep. Mounting bracket included.

• Port Quantity: 3
• Outlet Port Dia. 3/8
• Inlet Port Dia. 3/8
• Pressure Range 5-12

Carburetor Equipped Boost Reference Fuel Regulator

For those of you unfamiliar with boost referencing of a fuel system, well it's the ultimate way to meet fuel supply demands on a supercharged engine. By connecting a hose from your intake manifold to the top fitting of this regulator you can control fuel pressure on demand. You see for every pound of boost your engine generates it will allow the regulator to increase fuel pressure by the pound. These features have been used by professional race teams for years.

• Base fuel pressure adjustable from 3-15 PSI. 
• (1) ORB-10 inlet port and (1) ORB-08 return port.
• P/N 13204 provides (2) ORB-06 outlet ports and 1/8' NPT gauge port.
• Fuel pressure rises on a 1:1 ratio when referencing boost.
• Bypass design provides the ultimate, dynamic fuel delivery system.
• Ideal for converting from fuel injection to carburetion using the stock, in-tank pump.
• EFI conversions will require a larger-than-stock return line for proper low pressure control.

NOTE: REGULATOR DOES NOT INCLUDE THE FITTINGS SHOW IN THE PICTURE. FITTINGS SOLD SEPARATELY. 

Aeromotive Fuel Pressure Regulator 5-12 PSI

This regulator provides quick response and high flow for your high performance engines.

Aeromotive billet aluminum, adjustable marine fuel pressure regulators are specially designed for carbureted marine applications. Aeromotive marine fuel pressure regulators provide the quick response and high flow that your high performance engine needs. They're perfect for nitrous applications! The regulators re-seat after needle shutdown to prevent pressure creep and they're adjustable from 5-12 psi. They feature a corrosion-resistant black anodized finish, a 1/8 in. NPT gauge port, and a mounting bracket, 3/8 in. NPT inlet/outlet ports. They are designed for gasoline applications.

Features:

• Pressure Range (psi) 5-12
• Regulator Style Non-return
• Regulator Location Inline
• Boost/Vacuum Reference Port No
• Gauge Port Yes
• Mounting Bracket Included Yes
• Fittings Included No
• Rebuildable Yes
• Inlet Quantity Single
• Inlet Attachment Female threads
• Inlet Size 3/8 in. NPT
• Outlet Quantity Single
• Outlet Attachment Female threads
• Outlet Size 3/8 in. NPT
• Regulator Material Billet aluminum
• Regulator Finish Black anodized

A2000 Carbureted Bypass 4-Port Regulator

Adjustable from 2 to 20 psi, the A2000  Fuel Pressure Regulator is designed for use with Aeromotive's Drag Race Fuel Pump. The vacuum boost port makes it ideal for high-volume electric or mechanical fuel pumps of any kind where rock-steady pressure control is desired. Also perfect for blow-through carb applications with a turbo or centrifugal supercharger. Boost reference and high-flow capability are unmatched.

• Bypass design provides the ultimate dynamic fuel delivery system
• Four -8AN O-Ring Outlet Ports
• -10AN O-Ring Inlet and Return Ports
• Fuel pressure 1:1 ratio when referencing boost
• Alcohol compatible

Note: High-pressure boost reference applications require high-volume, high-pressure fuel pumps. EFI-type electric or mechanical high-volume pumps with no internal bypass valve are recommended for best results.

Aeromotive Adjustable Fuel Pressure Regulator and Filter Combo - Carbureted

• 10-micron cellulose filter paired with adjustable regulator 
• AN-10 Inlet and Outlet Ports with AN-06 Return Port 
• 1/8” NPT dedicated gauge port
  
• Reduces required return line length
• Carb adjustable from 3psi to 20psi, made for 250PGH and smaller pumps
  

Aeromotive Adjustable Fuel Pressure Regulator and Filter Combo - EFI

• 10-micron cellulose filter paired with adjustable regulator 
• AN-10 Inlet and Outlet Ports with AN-06 Return Port 
• 1/8” NPT dedicated gauge port
  
• Reduces required return line length
• EFI adjustable from 40psi to 75psi, made for A1000 and smaller pumps
  

Adjustable EFI/MPI Flow Command Regulator - 1993-98 MerCruiser 454/502 EFI Systems

Hardin Marine just added the MerCruiser 454/502 EFI Systems application to our line of high performance Flow Command adjustable fuel flow modifiers. The billet aluminum Flow Command is designed specifically for stock or modified 454/502 EFI systems. The Flow Command allows modification of the fuel flow rate to properly tune the air flow ratio. Ideal for use with high flow exhausts and intakes, the Flow Command incorporates these exclusive features:

• Bolt-on adjustable modifier for stock fuel regulators
• 6061-T6 billet aluminum case, CNC machined
• Allows pressure adjustments from 25 to 65 PSI
• Machined to exacting tolerances

HP 500/525 Flow Command Fuel Pressure Regulator (Red Color)

Hardin Marine just introduced the MerCruiser HP500 Systems application to its line of high performance Flow Command adjustable fuel flow modifiers. The billet aluminum Flow Command is designed specifically for stock or modified HP500 systems. The Flow Command allows modification of the fuel flow rate to properly tune the air flow ratio. Ideal for use with high flow exhausts and intakes, the Flow Command incorporates these exclusive features:

• Bolt-on adjustable modifier for stock fuel regulators
• 6061-T billet aluminum case, CNC machined
• Allows pressure adjustments from 25 to 65 PSI
• Machined to exacting tolerances

Bypass Fuel Regulator- up to 120 psi

• .281" bypass orifice
• 1/8" NPT Gauge Port
• 1/8" NPT manifold pressure reference port
• (2) -10 pressure ports
• -8 return port

Bypass Fuel Regulator

• .281" bypass orifice
• 1/8" NPT Gauge Port
• 1/8" NPT manifold pressure reference port
• (2) -10 pressure ports
• -8 return port

Weldon 15 PSI 4 Port Adjustable Fuel Regulator

Revolutionary Tool-Free pressure adjustment -- allows for more precise control of base fuel pressure with single hand adjustability.

Features:
• Stainless Steel Poppet and Delrin seat comprise the most modern cartridge design and allows for the most consistent fuel delivery in the industry
• "Creep" characteristics are unaffected by outlet port configuration, allowing the use of as many or as few ports as desired
• Can be used in single, dual, and "split" carb'd applications without compromising performance
• Industry Standard -- mounting and port configuration for easy installation
• Largest, least restrictive internal flow chamber
• Innovative valve cartridge has the largest flow paths to support higher fuel flows
• Unique Valve seat design provides smooth and predictable valve response with the most stable fuel delivery
• Resilient Teflon diaphragm is compatible with all racing fuels
• Designed to maintain steady fuel delivery during dramatic changes in fuel demand, such as WOT conditions, boost application and gear changes
• Adjustable from 4-15 psi
• 1/8" NPT Gauge Port
• 1/8" NPT manifold pressure reference port (filtered vent -- supplied)
• Fuel pressure increases on a 1:1 ratio with boost
• One -10 Inlet with four -6 pressure ports
• Replaceable / interchangable internal components

Weldon "long" 100 micron filter / assembly

Weldon Billet Fuel Filters are manufactured with the same exacting specifications and stringent quality requirements as our Racing Fuel Pumps. Weldon's Premium Filter media whether replaceable, paper cellulose or cleanable, stainless steel protects Carburetors and Injectors from contamination.

Features:
• 100 Micron Stainless Steel filter for use before the 600-A and any other manufactures' fuel pump
• 40 Micron paper cellulose filter for use before Weldon Billet and Cast Bodied pumps
• 10 Micron paper cellulose filter for use after all fuel pumps
• Over 60 sq. in. of filtering area
• -12 AN O-ring ports, 10 AN O-ring ports, 8 AN O-ring ports
• Radiused end caps to improve fuel flow within filter
• 6.75" Long x 2.38" Dia.
• Black/Gold Bright Dipped Anodized for a long lasting high-performance finish
• Minimal pressure drop

Chrome 4-1/2 to 9 PSI Regulator

This is Holley's most famous carbureted style fuel pressure regulator. The regulator features 3/8" NPT ports. This regulator allows you to adjust from 4-1/4 to 9 PSI.

Carbureted Fuel Pressure Regulator

• Adjustable fuel regulation from 4-1/2 to 9 psi
• One 1/2" NPT inlet and two 1/2" NPT outlet ports
• .437" (7/16") restriction
• Includes mounting hardware and an style fittings
• Alcohol compatible

AEM's Universal Adjustable Fuel Pressure Regulator is capable of supporting enough fuel flow for engines up to 1000 horsepower. Patented interchangeable discharge ports enable the regulator's output to match the output of any fuel pump. Our universal FPR is tapped to accept a -6 AN, or 9/16”x18 fittings and includes a 1/8 NPT port for a fuel pressure gauge or pressure sensor pick up.

Additional Details:

• Mounting: Mounts on Fuel Cooler
• Fits: MCM/MIE 7.4L/LX MPI, 454 Mag MPI, 502 Mag MPI & MIE 8.2L MPI

Interchanges/Replaces

Mallory

• 9-33207

Mercruiser Stern Drive

• 860349A1

Aeromotive Fuel Pressure Regulator Rebuild Kit

Carbureted Fuel Pressure Regulator Service Kit. For Regulator P/Ns 13201, 13205, 13211, 13215, 13217, 13251, 13255. When your Aeromotive regulator begins to show its age, Aeromotive rebuild kits contain the parts to help restore steady fuel pressure.