Reliability, flexibility, power and efficiency – all within your reach. Backed by decades of marine power innovation and product leadership, Mercury V8 and V6 FourStroke outboards deliver legendary performance and forward-thinking technology. FourStroke outboards are built for any body of water and a wide variety of boats.

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Engine Specifications by Horsepower

Horsepower FourStroke 250 - 300hp
Displacement (CID/CC) 279 CID
Displacement (L) 4.6L
Cylinder Configuration V-8 [64 degree] with Dual Overhead Cam [DOHC] and 32-valves
Full throttle RPM 5200-6000
Alternator amp / Watt 85-amp (1071 Watt) with Idle Charge
Starting Electric Start with SmartStart Protection
Steering Hydraulic (standard)
Power (optional)
Shaft length 20" / 508 mm
25" / 635 mm
Gearcase ratio 1.75:1
Dry weight *Lightest model available 527 lbs / 239 kgs
Trim system Power trim and tilt