Restore precise fuel pressure control with this Holley regulator diaphragm kit designed specifically for 12-803 and 12-804 regulators. Measuring 17.80 cm in length, it ensures an exact fit for reliable performance. Improve your fuel system's consistency and efficiency—read on for full details.

Maintain precise fuel pressure between 4.5 and 9 PSI to optimize engine performance and fuel efficiency. This Holley regulator features dual 3/8 NPT outlets for versatile fuel system integration, all within a compact 9.1 cm x 9.1 cm profile. Discover how this regulator ensures stable fuel delivery under varying conditions.

Maintain precise fuel pressure between 1-4 PSI for optimal carburettor performance with the Holley Red Regulator. Compact at just 9.9 cm in length and width, it integrates seamlessly into your fuel system. Discover how this regulator enhances your engine’s efficiency and reliability in the full description.

Maintain precise fuel pressure for optimal engine performance with the Aeromotive Universal EFI & Carb Fuel Regulator. Featuring 3/8" NPT ports for seamless integration, this regulator weighs just 0.47 kg, combining reliability with easy installation. Explore its advanced features to enhance your fuel system's efficiency.