Fuel Pressure Regulators
- Victor Reinz®Fuel Injection Pressure Regulator O-RingFuel Injection Pressure Regulator O-Ring by Victor Reinz®. Bring your vehicle’s fuel system back to its top shape with this top-notch part. Designed as a direct-fit replacement of your worn-out or malfunctioning part, it will...Designed as a replacement for your worn-out fuel system partWill help optimize your vehicle’s performance and fuel efficiency$3.39
- Walker®Fuel Pressure RegulatorFuel Pressure Regulator by Walker®. With their extensive selection of accessories and hardware for the exhaust system, Walker will provide you with everything needed to do the complete exhaust job. When you choose Walker accessories,...Makes installation quick and easyOptimal OE-style fit and quality$66.79 - $109.67
- Mopar®Fuel Injection Pressure Regulator O-RingFuel Injection Pressure Regulator O-Ring by Mopar®. Bring your vehicle’s fuel system back to its top shape with this top-notch part. Designed as a direct-fit replacement of your worn-out or malfunctioning part, it will provide...Designed as a replacement for your worn-out fuel system partWill help optimize your vehicle’s performance and fuel efficiency$9.49 - $19.73
- WVE®Fuel Injection Pressure RegulatorFuel Injection Pressure Regulator by WVE®. Replace your worn-out or faulty component with this quality replacement from WVE. This product is designed and tested to ensure the ultimate in durability and functionality. Made to meet or...Excellent replacement for your worn-out factory partDesigned to keep your vehicle running reliably mile after mile$20.63 - $549.11
- Hygrade®Fuel Pressure RegulatorFuel Pressure Regulator by Hygrade®. Bring your vehicle’s fuel system back to its top shape with this top-notch part. Designed as a direct-fit replacement of your worn-out or malfunctioning part, it will provide easy, no-hassle...Designed as a replacement for your worn-out fuel system partWill help optimize your vehicle’s performance and fuel efficiency$26.96 - $78.22
- Vemo®Fuel Injection Pressure RegulatorFuel Injection Pressure Regulator by Vemo®. Bring your vehicle’s fuel system back to its top shape with this top-notch part. Designed as a direct-fit replacement of your worn-out or malfunctioning part, it will provide easy,...Designed as a replacement for your worn-out fuel system partWill help optimize your vehicle’s performance and fuel efficiency$700.30 - $990.84
- PPE®Dual Fueler Pressure Regulator BlockDual Fueler Pressure Regulator Block by PPE®. PPE is where engineering, design, and quality come together in perfect form. This superior product was crafted using modern manufacturing methods and high-grade materials to strict standards...Great way to improve the performance of your truckSynonymous with quality, efficiency, and dependability$71.99
- Dodge OEFuel Injection Pressure Regulator (5142345AA)Fuel Injection Pressure Regulator (5142345AA) by Dodge OE. If you want to ensure peak performance of your Dodge mile after mile and keep it looking brand new, rely on superior-quality Dodge OE parts and accessories. They match the parts...Genuine Dodge OEM part designed for your make, model, and yearCrafted from premium-quality materials for long-lasting service$197.26
- Dodge OEFuel Pump Tank Seal (4809783AA)Fuel Pump Tank Seal (4809783AA) by Dodge OE. If you want to ensure peak performance of your Dodge mile after mile and keep it looking brand new, rely on superior-quality Dodge OE parts and accessories. They match the parts and...Genuine Dodge OEM part designed for your make, model, and yearCrafted from premium-quality materials for long-lasting service$30.62
- Jeep OEFuel Injection Pressure Regulator (53030001)Fuel Injection Pressure Regulator (53030001) by Jeep OE. Luckily, your Jeep is built for the long haul and doesn’t need repair very often, but when it does, look no further than superior-grade Jeep OE parts and accessories. They are...Genuine Jeep OEM part that offers a superior fit and performanceGuaranteed to look and function like the part your Jeep came with from the factory$153.44
- ACDelco®Genuine GM Parts™ Fuel Injection Pressure Regulator (12641035)Genuine GM Parts™ Fuel Injection Pressure Regulator (12641035) by ACDelco®. Location: In Fuel Pump. Bring your vehicle’s fuel system back to its top shape with this top-notch part. Designed as a direct-fit replacement of your...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$88.37
- Walker Products®Fuel Injection Pressure Regulator (255-1163)Fuel Injection Pressure Regulator (255-1163) by Walker Products®. Bring your vehicle’s fuel system back to its top shape with this top-notch part. Designed as a direct-fit replacement of your worn-out or malfunctioning part, it will...Designed as a replacement for your worn-out fuel system partWill help optimize your vehicle’s performance and fuel efficiency$36.79
- Walker Products®Fuel Injection Pressure Regulator (255-1206)Fuel Injection Pressure Regulator by Walker Products®. Location: In-Tank. Bring your vehicle’s fuel system back to its top shape with this top-notch part. Designed as a direct-fit replacement of your worn-out or malfunctioning part,...Designed as a replacement for your worn-out fuel system partWill help optimize your vehicle’s performance and fuel efficiency$90.42
- Walker Products®Fuel Injection Pressure Regulator (255-1203)Fuel Injection Pressure Regulator by Walker Products®. Location: In-Tank. Bring your vehicle’s fuel system back to its top shape with this top-notch part. Designed as a direct-fit replacement of your worn-out or malfunctioning part,...Designed as a replacement for your worn-out fuel system partWill help optimize your vehicle’s performance and fuel efficiency$89.81
- Walker Products®Fuel Injection Pressure Regulator (255-1218)Fuel Injection Pressure Regulator by Walker Products®. Location: In-Tank. Bring your vehicle’s fuel system back to its top shape with this top-notch part. Designed as a direct-fit replacement of your worn-out or malfunctioning part,...Designed as a replacement for your worn-out fuel system partWill help optimize your vehicle’s performance and fuel efficiency$30.38
- Walker Products®Fuel Injection Pressure Regulator (255-1213)Fuel Injection Pressure Regulator by Walker Products®. Bring your vehicle’s fuel system back to its top shape with this top-notch part. Designed as a direct-fit replacement of your worn-out or malfunctioning part, it will provide...Designed as a replacement for your worn-out fuel system partWill help optimize your vehicle’s performance and fuel efficiency$59.23
- Walker Products®Fuel Injection Pressure Regulator (255-1005)Fuel Injection Pressure Regulator (255-1005) by Walker Products®. Bring your vehicle’s fuel system back to its top shape with this top-notch part. Designed as a direct-fit replacement of your worn-out or malfunctioning part, it will...Designed as a replacement for your worn-out fuel system partWill help optimize your vehicle’s performance and fuel efficiency$114.77
- Walker Products®Fuel Injection Pressure Regulator (255-1040)Fuel Injection Pressure Regulator by Walker Products®. Bring your vehicle’s fuel system back to its top shape with this top-notch part. Designed as a direct-fit replacement of your worn-out or malfunctioning part, it will provide...Designed as a replacement for your worn-out fuel system partWill help optimize your vehicle’s performance and fuel efficiency$101.33
- Walker Products®Fuel Injection Pressure Regulator (255-1145)Fuel Injection Pressure Regulator (255-1145) by Walker Products®. Bring your vehicle’s fuel system back to its top shape with this top-notch part. Designed as a direct-fit replacement of your worn-out or malfunctioning part, it will...Designed as a replacement for your worn-out fuel system partWill help optimize your vehicle’s performance and fuel efficiency$76.86
- Walker Products®Fuel Injection Pressure Regulator (255-1078)Fuel Injection Pressure Regulator (255-1078) by Walker Products®. Bring your vehicle’s fuel system back to its top shape with this top-notch part. Designed as a direct-fit replacement of your worn-out or malfunctioning part, it will...Designed as a replacement for your worn-out fuel system partWill help optimize your vehicle’s performance and fuel efficiency$98.40
- Walker Products®Fuel Injection Pressure Regulator (255-1197)Fuel Injection Pressure Regulator by Walker Products®. Bring your vehicle’s fuel system back to its top shape with this top-notch part. Designed as a direct-fit replacement of your worn-out or malfunctioning part, it will provide...Designed as a replacement for your worn-out fuel system partWill help optimize your vehicle’s performance and fuel efficiency$53.32
- Walker Products®Fuel Injection Pressure Regulator (255-1137)Fuel Injection Pressure Regulator (255-1137) by Walker Products®. Bring your vehicle’s fuel system back to its top shape with this top-notch part. Designed as a direct-fit replacement of your worn-out or malfunctioning part, it will...Designed as a replacement for your worn-out fuel system partWill help optimize your vehicle’s performance and fuel efficiency$88.87
- Walker Products®Fuel Injection Pressure Regulator (255-1216)Fuel Injection Pressure Regulator (255-1216) by Walker Products®. Bring your vehicle’s fuel system back to its top shape with this top-notch part. Designed as a direct-fit replacement of your worn-out or malfunctioning part, it will...Designed as a replacement for your worn-out fuel system partWill help optimize your vehicle’s performance and fuel efficiency$30.65
- Walker Products®Fuel Injection Pressure Regulator (255-1152)Fuel Injection Pressure Regulator (255-1152) by Walker Products®. Bring your vehicle’s fuel system back to its top shape with this top-notch part. Designed as a direct-fit replacement of your worn-out or malfunctioning part, it will...Designed as a replacement for your worn-out fuel system partWill help optimize your vehicle’s performance and fuel efficiency$60.28
- Walker Products®Fuel Injection Pressure Regulator (255-1168)Fuel Injection Pressure Regulator (255-1168) by Walker Products®. Bring your vehicle’s fuel system back to its top shape with this top-notch part. Designed as a direct-fit replacement of your worn-out or malfunctioning part, it will...Designed as a replacement for your worn-out fuel system partWill help optimize your vehicle’s performance and fuel efficiency$70.45
- Walker Products®Fuel Injection Pressure Regulator (255-1079)Fuel Injection Pressure Regulator (255-1079) by Walker Products®. Bring your vehicle’s fuel system back to its top shape with this top-notch part. Designed as a direct-fit replacement of your worn-out or malfunctioning part, it will...Designed as a replacement for your worn-out fuel system partWill help optimize your vehicle’s performance and fuel efficiency$99.31
- Walker Products®Fuel Injection Pressure Regulator (255-1147)Fuel Injection Pressure Regulator by Walker Products®. Bring your vehicle’s fuel system back to its top shape with this top-notch part. Designed as a direct-fit replacement of your worn-out or malfunctioning part, it will provide...Designed as a replacement for your worn-out fuel system partWill help optimize your vehicle’s performance and fuel efficiency$84.10
- Walker Products®Fuel Injection Pressure Regulator (255-1032)Fuel Injection Pressure Regulator by Walker Products®. Bring your vehicle’s fuel system back to its top shape with this top-notch part. Designed as a direct-fit replacement of your worn-out or malfunctioning part, it will provide...Designed as a replacement for your worn-out fuel system partWill help optimize your vehicle’s performance and fuel efficiency$95.03
- Walker Products®Fuel Injection Pressure Regulator (255-1211)Fuel Injection Pressure Regulator by Walker Products®. Bring your vehicle’s fuel system back to its top shape with this top-notch part. Designed as a direct-fit replacement of your worn-out or malfunctioning part, it will provide...Designed as a replacement for your worn-out fuel system partWill help optimize your vehicle’s performance and fuel efficiency$82.01
- Walker Products®Fuel Injection Pressure Regulator (255-1188)Fuel Injection Pressure Regulator (255-1188) by Walker Products®. Type A. Bring your vehicle’s fuel system back to its top shape with this top-notch part. Designed as a direct-fit replacement of your worn-out or malfunctioning part,...Designed as a replacement for your worn-out fuel system partWill help optimize your vehicle’s performance and fuel efficiency$101.57
Fuel pressure regulators have long been used on electronic fuel injection systems. They maintain fuel pressure within the specified range. A fuel pressure regulator is mounted to the fuel rail and contains a spring and a diaphragm. A port connects the regulator to engine vacuum and it is also connected to the fuel return line, which allows fuel to flow back to the tank. At idle, when less fuel is required, engine vacuum acts against the spring and diaphragm to allow excess fuel to flow back to the tank. When the throttle is opened and more fuel is needed, the reduced vacuum under such conditions allows the spring and diaphragm to restrict return flow, ensuring there is enough pressure for the increased pulse width.
A fuel pressure regulator will typically fail closed, resulting in too much fuel pressure, a rich mixture, poor fuel economy and excessive emissions. If you disconnect the vacuum hose from the regulator and the fuel pressure doesn’t rise, the regulator is most likely faulty. However, there could be a problem with the vacuum signal, caused by a cut or broken vacuum line, so to be sure, apply vacuum with a hand-held vacuum pump. Fuel pressure should drop as vacuum is increased. If it doesn’t, verify that the return line isn’t blocked, and if not, replace the regulator.
However, if the spring in the regulator breaks or the regulator leaks, this will result in fuel pressure that is too low and a lean condition. If fuel pressure is low and doesn’t rise when the fuel return line is pinched shut, the fuel pump is most likely at fault. However, if the pressure does rise, the regulator should be replaced. Regardless of the failure mode, we have the replacement fuel pressure regulator to restore proper engine operation. All of the regulators we offer are manufactured to OE specs to meet the specific fuel pressure requirements of each vehicle, and ensure ease of fitment and perfect engine performance.
Fuel pressure regulators deliver satisfactory performance – as long as the rest of the fuel system remains in factory stock configuration. But install larger injectors, forced induction, a high volume fuel pump or other mods, and the OE regulator becomes inadequate. We have pressure regulators to suit every type of fuel system and level of modifications, from direct fit upgrades to units designed for full custom high flow fuel systems. The main problem with OEM regulators is that they can’t be adjusted, and being able to increase fuel pressure may be all you need to do with moderately larger injectors to achieve the optimal air/fuel ratio. We offer adjustable regulators that are direct bolt-on replacements for the factory component on select applications, so you can tune your EFI car for peak performance. Many of these are manufactured from billet aluminum and come with attractive finishes to complement your engine.
If you’re building a full custom designed electronic fuel injection system, we offer pressure regulators for everything from street/strip applications right up to 3000 horsepower drag racing engines. These regulators are adjustable, compatible with gasoline and alcohol, and available to complement a wide range of fuel pump flow rates and fuel system configurations. We have static regulators for returnless systems and for use with external fuel pumps connected to return lines, as well as bypass regulators with a port to return excess fuel to the tank. Many have vacuum/boost reference ports. These pumps are CNC machined from billet aluminum, with an attractive finish and feature as many as 4 inlet ports. We also offer pressure regulators specially designed for carbureted applications.