Mercury Fuel Pressure Regulator Kit, 43 PSI (MerCruiser MPI) 861126A1

Mercury Fuel Pressure Regulator Kit, 43 PSI (MerCruiser MPI) 861126A1 is a genuine Mercury/Quicksilver OEM replacement regulator designed for compatible MerCruiser sterndrive and inboard engines. Maintaining the correct fuel pressure is essential for reliable starting, smooth engine operation, and optimum fuel system performance.

Compatible with the following:

• MerCruiser 4.3L MPI (ECM 555)
• MerCruiser 5.0L MPI (ECM 555)
• MerCruiser 5.7L MPI (ECM 555)
• MerCruiser 6.2L MPI (ECM 555)
• MerCruiser 7.4L MPI (L29)
• MerCruiser 454 Magnum MPI
• MerCruiser 496 Magnum & HO
• MerCruiser 500 EFI
• MerCruiser 8.1S & 8.1 HO

This 43 PSI fuel pressure regulator mounts directly on the fuel cooler and is manufactured to Mercury Marine's OEM specifications for proper fit and dependable performance. Replacing a worn or malfunctioning regulator helps restore correct fuel pressure and supports consistent engine operation.

Always verify compatibility using your engine serial number before ordering, as fuel system components may vary between engine models and production years.

Quicksilver is Mercury Marine's official parts and accessories brand, offering the same OEM quality and fit as Mercury-branded components.

To Confirm Compatibility: Contact our team with your engine serial number at (727) 596-5929 before ordering.