Replacement Fuel Pressure Regulator Diaphragm
Includes Spring, Suit New Design AF49-4500 & 4501

Replacement Diaphragm and Spring Kit.

This diaphragm and spring kit suits the new design Aeroflow Performance Bypass fuel pump regulators. The new design comapred to the previous design has a octagon style top hat. The part numbers are AF49-4500 and AF49-4501.