GENUINE Quicksilver by Mercury Marine
Regulator mounted on fuel cooler. Brown and blue color mark, Green ring on base of tube. Fits MCM/MIE 4.3L, 5.0L, 5.7L & 6.2L MPI engines with ECM 555 and MCM/MIE 7.4L MPI (L29), 454 Mag MPI, 496 Mag & HO, 500 EFI and MIE 8.1S & HO.