Replacement Fuel Pressure Regulator Diaphragm
Includes Spring, Suit New Design AF49-3000 & 4000

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 AF49-3000 and AF49-4000.