20 Best Adjustable Fuel Pressure Regulator Diagram [2024]

Are you looking for the best Adjustable Fuel Pressure Regulator Diagram? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling Adjustable Fuel Pressure Regulator Diagram.

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1 Partschoice 0-140 PSI Universal Adjustable Fuel Pressure Regulator Kit W/Gauge Hose, Red FPR Partschoice 0-140 PSI Universal Adjustable Fuel Pressure Regulator Kit W/Gauge Hose, Red FPR
2 Top10 Racing Manual Adjustable Fuel Pressure Regulator Carburetor Carb Fuel Pump FPR Universal 1-5... Top10 Racing Manual Adjustable Fuel Pressure Regulator Carburetor Carb Fuel Pump FPR Universal...
3 PTNHZ RACING Manual Adjustable Fuel Pressure Regulator Carburettor Carb Fuel Pump FPR PTNHZ RACING Manual Adjustable Fuel Pressure Regulator Carburettor Carb Fuel Pump FPR
4 PQY Fuel Pressure Regulator AN8 Feed & AN6 Return Line + 0-160PSI Gauge Set Black PQY Fuel Pressure Regulator AN8 Feed & AN6 Return Line + 0-160PSI Gauge Set Black
5 WATERWICH Aluminum EFI Fuel Pressure Regulator Kit Adjustable with 100 Psi Pressure Gauge AN6-6AN... WATERWICH Aluminum EFI Fuel Pressure Regulator Kit Adjustable with 100 Psi Pressure Gauge AN6-6AN...
6 EVIL ENERGY 6AN Adjustable Fuel Pressure Regulator EFI Bypass Return 30-70psi Black&Red EVIL ENERGY 6AN Adjustable Fuel Pressure Regulator EFI Bypass Return 30-70psi Black&Red
7 AEM 25-300BK Black High Volume Adjustable Fuel Pressure Regulator AEM 25-300BK Black High Volume Adjustable Fuel Pressure Regulator
8 SUPERFASTRACING Black Universal Adjustable Fuel Pressure Regulator Gauge 0-100psi Liquid Chrome SUPERFASTRACING Black Universal Adjustable Fuel Pressure Regulator Gauge 0-100psi Liquid Chrome
9 SUNROAD 0-140 PSI Universal Adjustable Fuel Pressure Regulator Kit With Gauge Hose Blue FPR SUNROAD 0-140 PSI Universal Adjustable Fuel Pressure Regulator Kit With Gauge Hose Blue FPR
10 Holley 12-841 4.5-9 PSI Adjustable Bypass Billet Fuel Pressure Regulator with 3/8' NTP Ports , Black Holley 12-841 4.5-9 PSI Adjustable Bypass Billet Fuel Pressure Regulator with 3/8" NTP Ports , Black
11 Aeromotive 13129 Regulator, EFI Bypass, Adjustable (2) -6 inlets, (1) -6 bypass Aeromotive 13129 Regulator, EFI Bypass, Adjustable (2) -6 inlets, (1) -6 bypass
12 Adjustable Fuel Pressure Regulator Kit Universal Aluminum Gas Oil Injection Pressure Regulator with... Adjustable Fuel Pressure Regulator Kit Universal Aluminum Gas Oil Injection Pressure Regulator...
13 BETTERCLOUD Universal Adjustable EFI Aluminum Fuel Pressure Regulator Kit with 0-100 psi Gauge... BETTERCLOUD Universal Adjustable EFI Aluminum Fuel Pressure Regulator Kit with 0-100 psi Gauge...
14 RVAQUA M11-45PSI Water Pressure Regulator for RV Camper - Brass Lead-Free Adjustable RV Water... RVAQUA M11-45PSI Water Pressure Regulator for RV Camper - Brass Lead-Free Adjustable RV Water...
15 0-140 PSI Adjustable Universal Fuel Pressure Regulator, Aluminum Gas Oil Injection Pressure... 0-140 PSI Adjustable Universal Fuel Pressure Regulator, Aluminum Gas Oil Injection Pressure...
16 Spectre Performance 2518 Fuel Pressure Regulator Spectre Performance 2518 Fuel Pressure Regulator
17 Somusen Universal Adjustable EFI Fuel Pressure Regulator Kit with 0-100psi Gauge AN6-6AN Fuel Line... Somusen Universal Adjustable EFI Fuel Pressure Regulator Kit with 0-100psi Gauge AN6-6AN Fuel...
18 RJSPHH Fuel Pressure Regulator Kit Carburetor Carb Fuel Pump FPR, Adjustable Gunmetal Fuel Pressure... RJSPHH Fuel Pressure Regulator Kit Carburetor Carb Fuel Pump FPR, Adjustable Gunmetal Fuel...
19 WATERWICH Fuel Pressure Regulator Kit Adjustable 1-5 PSI for Engine Carburetor Carb Kit WATERWICH Fuel Pressure Regulator Kit Adjustable 1-5 PSI for Engine Carburetor Carb Kit
20 Universal Adjustable EFI Aluminum Fuel Pressure Regulator Kit w/ 0-160 psi Gauge AN6-6AN Fuel Line... Universal Adjustable EFI Aluminum Fuel Pressure Regulator Kit w/ 0-160 psi Gauge AN6-6AN Fuel...
Bestseller No. 1
Partschoice 0-140 PSI Universal Adjustable Fuel Pressure Regulator Kit W/Gauge Hose, Red FPR
  • Universal Aluminum Fuel Pressure Regulator - Adjustable from 0 psi to 140 psi Maximum Fuel Pump Capacity
  • Perfect fit all type car. Designed for use with a fuel pump where fuel pressure is steadily delivered
  • The oil in the gauge stabilizes the needle to give you the most accurate readings
  • Improves Fuel Delivery Efficiency and Prevents Fuel Starvation
  • Not Legal in the state of California & New York, Not complies with C.A.R.B. regulations
Bestseller No. 2
Top10 Racing Manual Adjustable Fuel Pressure Regulator Carburetor Carb Fuel Pump FPR Universal 1-5...
  • Ideal for facet fuel pumps to control the fuel pressure to the carburetor.
  • High-quality zinc alloy construction anti-corrosion performance, super longevity.
  • The maximum input pressure should not exceed 7psi.
  • There is an adjustable range of 1 to 5psi via A numbered dial on top.
  • Includes three steel clips and 8mm fittings for 8mm bore push-on fuel hose.
Bestseller No. 3
PTNHZ RACING Manual Adjustable Fuel Pressure Regulator Carburettor Carb Fuel Pump FPR
  • Designed For Single Or Twin Carburettor Installations
  • Has An Adjustable Range Of 1 To 5 Psi Via A Numbered Dial On Top
  • Chrome Finish For The Classic Look
  • Ideal For Facet Fuel Pumps To Control The Fuel Pressure To The Carburettor
  • A Maximum Input Pressure Of 7 Psi Should Not Be Exceeded
Bestseller No. 4
PQY Fuel Pressure Regulator AN8 Feed & AN6 Return Line + 0-160PSI Gauge Set Black
  • ✿APPLICATION :Can be used on E85 & alcohol.
  • ✿FEATURE:Adjustable from 60 to 85psi.(You need to replace the spring inside of the top if you need other psi which is out of the range )1/8'' NPT...
  • ✿MATERIAL&SIZE:CNC-machined from 6061-T651 billet aluminum.AN8 feed & AN6 return.
  • ✿WHAT YOU GET:1 × fuel pressure regulator, 1 × gauge,2 × -8AN fittings for feed and supply lines,1 × -6AN return line fitting,1 × AN8 end...
  • ✿PQY CUSTOMER SERVICE :If you ve any problem ,please contact us and we will respond you on 24 hours except weekends and holidays.
Bestseller No. 5
WATERWICH Aluminum EFI Fuel Pressure Regulator Kit Adjustable with 100 Psi Pressure Gauge AN6-6AN...
  • 1.Comes with a 1-3/4'' | 45mm gauge & 1/8'' NPT gauge port, adjustable from 0 to 100 psi to maximum fuel pump capacity,and 6AN inlet ports and return...
  • 2.Oil gauge needle shows you exact reading & Tune the fuel pressure to meet your needsThe oil in the gauge stabilizes the needle to give you the...
  • 3.Designed for use with an electric fuel pump where fuel pressure is steadily delivered.Adjustable Fuel Pressure Regulator to tune the fuel pressure...
  • 4.Add moderate fuel-injection quantity without changing computer oil supply mode, to save much money,Fuel pressure regulator provides high...
  • 5.Based on premium stainless steel & T7 Aluminum Alloy materials & Nylon, securely, light weight and portable,Application: Universal,Such as fuel for...
Bestseller No. 6
EVIL ENERGY 6AN Adjustable Fuel Pressure Regulator EFI Bypass Return 30-70psi Black&Red
  • Bypass pressure regulators return style provides constant effective fuel pressure to the outlet port - pressure overage is bled off through the return...
  • Universal fuel regulator fit for most vehicle's EFI system.Adjustable fuel pressure: 30psi -70psi.Adjust the set screw on top to get the desired...
  • The optimum adjustable 6an fuel pressure regulator location is after the fuel rail(s) when possible.
  • Material: aluminum alloy. Package include: as shown in the main image. (Including instructions).
  • When installing fuel regulator NPT pressure gauge port,please use thread sealant tape for sealing.Professional installation is highly recommended.
SaleBestseller No. 7
AEM 25-300BK Black High Volume Adjustable Fuel Pressure Regulator
  • Applications: 94-01 Acura Integra RS, LS, GS and GSR
  • Applications: 86-89 Honda Accord Lxi, Sei and 90-93 Honda Accord DX, LX, SE, EX (Must use AEM Rail) and 92-95 Honda Civic VX, CX, DX, LX and EX
  • Applications: 99-00 Honda Civic Si and 93-95 Honda Del Sol S, Si and 94-97 Honda Del Sol VTEC
  • Applications: 88-91 Honda Prelude Si and 92-96 Honda Prelude S (Must use AEM Rail)
  • Adjustable from 20 psi to maximum fuel pump capacity
Bestseller No. 8
SUPERFASTRACING Black Universal Adjustable Fuel Pressure Regulator Gauge 0-100psi Liquid Chrome
  • 1 x Fuel Pressure Regulator Gauge , 1-3/4'' | 45mm Gauge
  • Liquid filled gauge for consistent readings hot or cold. Adjustable from 0 to 100 PSI to maximum fuel pump capacity
  • Steel case, a crisp, easy to read black face with white numerals and PSI increments
  • Standard, 1/8 inch NPT male supports a direct connection to any adjustable regulator
  • Easy-Vent Plug for accurate readings every time.
Bestseller No. 9
SUNROAD 0-140 PSI Universal Adjustable Fuel Pressure Regulator Kit With Gauge Hose Blue FPR
  • Universal Replacement for All Type Cars.Used to Keep the Stable Pressure in the Fuel System
  • Adjustable Alumium Fuel Pressure Regulator,So You Can Tune the Fuel Pressure to Your Needs.Adjustable From 0 PSI to 140 Maximum Fuel Pump Capacity
  • Improve Fuel Delivery Efficiency Without Changing Computer Oil Supply Mode,Save Much Money
  • Provide the Highest PerReplacement formance,Reliability and Long Lifespan Replacement for Your Vehical
  • No instruction included,professional installation is highly recommended
Bestseller No. 10
Holley 12-841 4.5-9 PSI Adjustable Bypass Billet Fuel Pressure Regulator with 3/8" NTP Ports , Black
  • Carbureted Applications
  • Bypass Style
  • Adjustable 4.5-9PSI
  • 3/8" NPT Ports
  • Used in systems with a return lineback to tank
SaleBestseller No. 11
Aeromotive 13129 Regulator, EFI Bypass, Adjustable (2) -6 inlets, (1) -6 bypass
  • Base pressure adjustable from 30-70 psi
  • Fuel pressure rises on a 1:1 ratio with boost
  • Provides (2) ORB-06 inlet/outlet ports and (1) ORB-06 return port
  • 1/8" NPT gauge port
  • Vacuum boost port
Bestseller No. 12
Adjustable Fuel Pressure Regulator Kit Universal Aluminum Gas Oil Injection Pressure Regulator with...
  • Adjust Capacity: This Aluminum Fuel Pressure Regulator Kit is adjustable from 0 to 140 PSI maximum fuel pump capacity. Optimally adjusts oil flow to...
  • Fuel Pressure Regulator Kit: Prevent stalling, flooding, and other drivability problems by making sure your carbs are getting the right amount of fuel...
  • Package Includes: 1x Fuel Pressure Regulator, 2x Hoses, 1x Accessories.
  • Materials: Premium aluminum construction for ideal weight and superior durability.
  • NOTE: Not Legal in the state of California & New York, Not complies with C.A.R.B. regulations, Not for sale in the states of CA and NY. No instruction...
Bestseller No. 13
BETTERCLOUD Universal Adjustable EFI Aluminum Fuel Pressure Regulator Kit with 0-100 psi Gauge...
  • 🔧Comes with a fuel pressure regulator, -6AN inlet ports and return port.
  • 🔧The fuel hose made of 304 stainless steel & CPE synthetic rubber, Length: 170mm & 380mm & 660mm
  • 🔧The hose end fitting made of high quality T6061 Aluminum and -6AN size.
  • 🔧Comes with a 1-3/4'' | 45mm gauge & 1/8'' NPT gauge port, adjustable from 0 to 100 psi to maximum fuel pump capacity.
  • 🔧Support high power application: 300-800 H
SaleBestseller No. 14
RVAQUA M11-45PSI Water Pressure Regulator for RV Camper - Brass Lead-Free Adjustable RV Water...
  • Universal Fitment with Dual-layer Inlet Filter - Designed with 3/4" garden hose threads & NH threads, compatible with All US water sources. DUAL-LAYER...
  • Lead Free Brass, Safer and Healthier - Class C46500 LEAD-FREE BRASS treated by hot casting process technology. Tested to meet NSF lead-free...
  • Stainless Steel Gauge with Explosion-proof Plug - Better shock, dust and water leaking resistance than plastic shell gauge on the market. The build-in...
  • Adjust Water Pressure from 0-160PSI - Adjustable water pressure setting can easily adjust whatever water pressure you want (from 0-160PSI, Preset at...
  • Removable Valve Spool and Easy to Use - Compact size for easy to use, the removable valve spool for easily cleaning or replacement when needed by...
Bestseller No. 15
0-140 PSI Adjustable Universal Fuel Pressure Regulator, Aluminum Gas Oil Injection Pressure...
  • Adjust Capacity-The fuel pressure regulator is equipped with a reading gauge. The maximum fuel pump capacity is 140psi and can be adjusted from...

  • Universal for All Type Cars. Adjustable fuel pressure regulator, made of Premium aluminum construction, the effect is directly reflected in the...

  • Built-In Diaphragm-The built-in diaphragm, made of special material, controls the opening and closing of the pressure valve, which has a certain...

  • Function of The Universal Fuel Pressure Regulator, Universal fuel pressure regulator for fuel injection can increase the proper amount of fuel...

  • The Role of The Fuel Pressure Regulator Kit, Prevents stalling, flooding and other drivability issues by ensuring your carbs are getting the right...

SaleBestseller No. 16
Spectre Performance 2518 Fuel Pressure Regulator
  • Adjustable through a pressure range of 1 psi to 4 psi
  • Bright plated finish
  • 3/8 In. barb fittings and mounting hardware included
  • Made from high quality material
  • Use with 2515 or 59013 fuel pressure gauge
Bestseller No. 17
Somusen Universal Adjustable EFI Fuel Pressure Regulator Kit with 0-100psi Gauge AN6-6AN Fuel Line...
  • The fuel pressure regulator is a necessary item for any EFI system, regulates the pressure of the fuel in the system, even dramatic changes in fuel...
  • The fuel pressure regulator regulates the fuel pressure against the air pressure/boost, this leads to that the fuel injector can maintain the perfect...
  • The pressure gauge needle shows you the exact reading, you can regulate the pressure to your needs. The fuel regulator pressure gauge range is...
  • This fuel pressure regulator has strong versatility. Universal fit for most car's EFI systems.
  • Professional installation is highly recommended.We offer 12 months warranty and lifelong customer service.If you have any questions about the product,...
Bestseller No. 18
RJSPHH Fuel Pressure Regulator Kit Carburetor Carb Fuel Pump FPR, Adjustable Gunmetal Fuel Pressure...
  • 【Wide Usage】This fuel pressure regulator kit is ideal for facet fuel pumps to control the fuel pressure to the carburetor.
  • 【Reliable Quality】High-quality zinc alloy construction anti-corrosion performance, super longevity.
  • 【Adjustable】There is an adjustable range of 1 to 5psi via A numbered dial on top.The maximum input pressure should not exceed 7psi.
  • 【Package List】This regulator kit Includes 3 steel clips and 8mm fittings for 8mm bore push-on fuel hose.
  • 【Simple Install】Professional installation is strongly recommended. No instructions included!
Bestseller No. 19
WATERWICH Fuel Pressure Regulator Kit Adjustable 1-5 PSI for Engine Carburetor Carb Kit
  • 1.Has An Adjustable Range Of 1 To 5 Psi Via A Numbered Dial On.Designed For Single Or Twin Carburettor Installations,Maximum Input Pressure Of 7 Psi...
  • 2.Based on premium stainless steel Aluminum Alloy materials, securely, light weight and portable,Application: Universal for Engine Carburetor Carb.
  • 3.Ideal For Facet Fuel Pumps To Control The Fuel Pressure To The Carburettor,Designed for use with an electric fuel pump where fuel pressure is...
  • 4.Add moderate fuel-injection quantity without changing computer oil supply mode, to save much money,Fuel pressure regulator provides high...
  • 5.Fine thread pitch for precise pressure adjustment,Accepts non-port style fittings without any interference.Includes three steel clips and 8mm...
Bestseller No. 20
Universal Adjustable EFI Aluminum Fuel Pressure Regulator Kit w/ 0-160 psi Gauge AN6-6AN Fuel Line...
  • Comes with 7pcs Hose End Fitting & 3pcs Stainless Steel Braided Fuel Hose.
  • The fitting made of high quality T6061 Aluminum and -6AN size.
  • The fuel hose made of 304 stainless steel & CPE synthetic rubber.
  • Length of the fuel hose: 170mm & 380mm & 660mm.
  • Support high power application: 300-800 hp.

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FAQ:

Q: How do you adjust the fuel pressure regulator?

A: Using the adjustment on the fuel pressure regulator, set the fuel pressure to 36psi via the needle on your fuel pressure gauge. Turn off the ignition, remove jumper, reinstall the relay and cover, and start the car. The fuel pressure at idle should be LESS than 36psi. When you are in boost it will be MORE than 36psi.

Q: How do you install a fuel pressure regulator?

A: To install a fuel pressure regulator, disconnect the fuel line to the old regulator, install the gauge, and then reconnect the fuel pump to the fuse. Disconnect the battery, and install the new regulator. Before starting, make sure to wear proper safety equipment, including gloves and eye protection.

Q: How do you test fuel pressure regulator?

A: Quick Answer. To test a vehicle’s fuel pressure regulators, connect the fuel pressure gauge to the fuel rail and start the engine with the vacuum line detached, and then attach the vacuum line and observe the drop in pressure on the gauge. If the fuel pressure drops around 5 lbs. per square inch, then the pressure regulators are working.

Q: What are some signs of fuel pressure regulator problems?

A: Symptoms of a failing fuel pressure regulator include blackened spark plugs, a rough running engine and black smoke coming out of the tailpipe.