MPI

Reliable power starts with precise fuel delivery — and the Mercury Marine Fuel Injector - 8M6002428 is built to make sure your 4.5L or 6.2L MPI engine gets exactly the right mix every time it fires. This isn’t just about squeezing fuel into the cylinders. It’s about delivering the perfect atomized spray, ensuring clean combustion, smooth acceleration, and the kind of throttle response you expect from a well-tuned Mercury.

Specifically engineered for Mercury MCM 4.5L MPI and 6.2L MPI engines, this injector is calibrated to factory specs, so you’re not left chasing adjustments after installation. Internally, the precision-machined components hold up to constant fuel flow, engine vibration, and the harsh reality of ethanol blends. The corrosion-resistant exterior shrugs off the moisture and salt air that are unavoidable in any marine environment. Whether you’re replacing a tired injector or swapping out a complete set, this part delivers the clean fuel flow your engine was designed around.

Why this injector matters:

• Direct-fit for 4.5L MPI and 6.2L MPI MCM engines — installs cleanly with no guesswork
• Precision fuel spray ensures smooth performance and optimal combustion
• Corrosion-resistant construction stands up to ethanol and saltwater exposure
• Factory-matched calibration helps maintain proper air-fuel ratios at all RPMs

Best uses:

1. Replacing failing or clogged injectors to restore lost power and throttle response
2. Routine service for high-hour engines, especially those running ethanol-blended fuels
3. Ensuring consistent fuel delivery for smooth idling, clean acceleration, and peak efficiency

Fuel delivery makes all the difference between a strong-running engine and one that struggles — this Mercury injector helps keep your MPI running like it should.