Yes, if yours is 1987, 150 has a compatible steering connection, this kit can fit. It is a front-mount hydraulic steering system designed for single outboard engines up to 300 HP.
Yes, it is suitable for a 2015 F250 Yamaha 4-stroke engine — this indicates it is a direct replacement and does not require modification.
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Yes — it is compatible in principle with a Yamaha 150 SHO (2025), but it requires proper mounting alignment and may need adapter brackets for correct tilt/trim clearance.
