Standard Ignition PR579 Fuel Injection Pressure Regulator

Reliable Fuel Injection Pressure Regulator for Lexus Vehicles

The Standard Ignition PR579 fuel injection pressure regulator is designed to maintain consistent fuel pressure in your Lexus LC500h, LS500, NX300, RX350, and other compatible models. Engineered for gas systems, this new, direct-mount regulator ensures optimal fuel delivery and engine performance.

• Non-adjustable fuel injection pressure regulator
• Constructed from durable cast iron with a silver finish
• Single inlet and outlet port for returnless fuel systems
• Plug-type connector for straightforward installation
• Compatible with Lexus LC500h, LS500, LS500h, NX200t, NX300, NX300h, RX350, RX350L, RX450h, and RX450hL

Durable Construction and Precise Fuel Regulation

The PR579 fuel injection pressure regulator by Standard Ignition is crafted from cast iron and steel, providing strength and longevity under demanding engine conditions. Its silver finish offers corrosion resistance, while the direct mounting type simplifies installation. Designed specifically for gas fuel systems, this returnless regulator maintains steady fuel pressure by controlling the flow between the fuel rail and tank without the need for a return line. The single inlet and outlet ports support efficient fuel management, and the plug-type connector ensures a secure electrical connection.

Compatible Lexus Models and Applications

This fuel injection pressure regulator is compatible with a range of Lexus models, including the LC500h, LS500, LS500h, NX200t, NX300, NX300h, RX350, RX350L, RX450h, and RX450hL. The PR579 part number corresponds to a new, direct-mount regulator designed to meet OEM specifications for these vehicles, ensuring proper fit and function within the fuel injection system.

Common Issues Addressed by the PR579 Regulator

• Inconsistent fuel pressure causing engine hesitation or stalling
• Poor fuel economy due to improper fuel delivery
• Rough idling or engine misfires related to fuel pressure fluctuations
• Check engine light triggered by fuel system faults
• Fuel leaks or pressure drops from worn or damaged regulators

Installation Notes and Tips

• Ensure the vehicle is cool and fuel system pressure is relieved before installation
• Use OEM or equivalent tools to avoid damage to the regulator or fuel lines
• Verify connector type matches the vehicle’s wiring harness for proper fit
• Inspect fuel lines and seals for wear during replacement
• Follow manufacturer torque specifications for mounting bolts

Quality Assurance and Warranty

The Standard Ignition PR579 fuel injection pressure regulator is a new, high-quality replacement part manufactured to meet or exceed OEM standards. Constructed from cast iron and steel with a corrosion-resistant finish, it offers reliable performance for Lexus gas fuel systems. While specific warranty details may vary, Standard Ignition parts typically come with a limited warranty covering defects in materials and workmanship to provide confidence in your purchase.