This O2 Sensor is used in:

5.7/6.2L MPI Inborad EC - 5.7L MPI MIE EC
5.7/6.2L MPI Inborad EC - 6.2L MPI MIE EC
5.7L MPI SKI EC - 5.7L SKI EC
5.0L, 350, 377 MAG MPI Sterndrive EC - 377 MAG MPI Bravo EC
5.0L, 350, 377 MAG MPI Sterndrive EC - 350 MAG MPI Alpha/Bravo EC
5.0L, 350, 377 MAG MPI Sterndrive EC - 350 MAG MPI Horizon Alpha/Bravo EC
5.0L, 350, 377 MAG MPI Sterndrive EC - 5.0L MPI Alpha/Bravo EC
5.0, 350, 377 MAG MPI Sterndrive EC - 350 MAG MPI Horizon Alpha/Bravo EC
5.0, 350, 377 MAG MPI Sterndrive EC - 377 MAG MPI Bravo EC
5.0, 350, 377 MAG MPI Sterndrive EC - 5.0L MPI Alpha/Bravo EC

3.0L MPI EC - 3.0L MPI EC
4.3L MPI Alpha/Bravo EC - 4.3L MPI Alpha/Bravo EC
4.5L MPI Alpha/Bravo - 4.5L MPI 250 Alpha/Bravo EC

8.1L Inborad EC - 8.1L Inborad (Base) EC
8.1L Inborad EC - 8.1L Inborad (H.O.) EC
8.2 MAG HO EC - 8.2L MAG EC (Base Model)
8.2 MAG / 8.2 MAG HO EC - 8.2L MAG EC (Base Model)
8.2L MAG / 8.2L MAG HO - 8.2L MAG (Base Model)
8.2 MAG HO EC - 8.2L MAG EC (H.O. Model)
8.2L MAG / 8.2L MAG HO - 8.2L MAG (H.O. Model)
8.2 MAG / 8.2 MAG HO EC - 8.2L MAG EC (H.O. Model)
8.2 HO EC - 8.2L Inborad (BASE) EC
8.2 HO EC - 8.2L Inborad (H.O.) EC
8.2 Horizon / 8.2 HO EC - 8.2L Inborad (H.O.) EC
8.2 Horizon / 8.2 HO EC - 8.2L Inborad (Base) EC

Scorpion 350 EC / 377 HO EC - Scorpion377 HO EC
Scorpion 350 EC / 377 HO EC - Scorpion350 EC

496 MAG Sterndrive EC - 496 MAG EC (H.O. Model)
496 MAG Sterndrive EC - 496 MAG EC (Base Model)

540 HP - 540 Race Sterndrive
520 HP - 520 Race Sterndrive
Vazer 100 EC - 100 Vazer EC

Fits: 3.0L 4.3L 5.0L 5.7L 6.0L 8.1L Series Marine Gasoline Engines