150 HP
SeaPro Commercial
Mercury 150 HP SeaPro
Commercial · 4-cyl
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Commercial-grade durability for those who run hard all day — heavy-duty components, extended service intervals and the reliability your livelihood depends on.
Specifications
| Horsepower | 150 HP |
| Configuration | Inline-4 SOHC |
| Displacement | 3.0 L / 183 cid |
| Full-throttle RPM | 5000–6000 |
| Dry weight | 455 lb |
| Alternator | 60 A |
| Gear ratio | 1.92:1 |
| Fuel | EFI · 87 octane |
Specifications are Mercury published figures for this engine platform; exact weight, gearcase and rigging vary by shaft length and configuration — confirm on your quote.
Parts & diagrams for this engine
Genuine parts
Parts that fit your 150 HP SeaPro →
Jump to the parts store, pre-filtered to your engine — kits, water pumps, anodes, filters and more, factory-direct.
Exploded diagrams
Look up the 150 HP SeaPro diagram ↗
Find the exact component on Mercury’s official exploded parts diagrams by serial number or model, then order it here.