150 HP
Pro XS Performance
Mercury 150 HP Pro XS
Performance · 4-cyl
Request a quote
Tournament-bred performance — lighter weight, a harder hole shot and higher top speed, tuned for bass and bay boats that demand to win.
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 Pro XS →
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 Pro XS diagram ↗
Find the exact component on Mercury’s official exploded parts diagrams by serial number or model, then order it here.