Genuine OEM Mercury / Quicksilver fuel pressure regulator. This factory component controls fuel pressure in the fuel rail for select MPI (Multi-Port Injection) marine engines, maintaining optimal fuel delivery under varying loads and protecting fuel system components. Features: Direct OEM replacement for Mercury part # 892681 Designed to maintain correct fuel rail pressure and help prevent fuel system issues such as surges, rich-run, or lean-run conditions Manufactured to factory fit, finish and performance standards specific to Mercury Marine products Compact regulator assembly, mounts on the fuel cooler on many Gen III MPI engines May Fit / Common Usage:Used on Mercury MPI marine engines such as the 5.0 L MPI, 350 MAG MPI, MX 6.2 L MPI, 496/8.1 L engines when equipped with a Gen III fuel cooler/regulator assembly. Serial number ranges and model years vary — verifying the engine model, serial number and fuel system configuration is essential before purchase.