General Specifications
HP / kW 450 HP / 335.3 kW
Displacement 5559 cc (339.2 cu in.)
Cylinders 8 (V8 60°)
WOT RPM Range Check Manual
Bore x Stroke 96 x 96 mm
Weight (Lightest) 437 kg / 964 lbs
Drive & Lower Unit
Gear Ratio 1.79:1
Shaft Options 25, 30, 35
Propeller Style 16–17"
Maintenance Quick-Specs
Engine Oil Yamalube 4-Stroke
Oil Capacity See Manual
Gear Lube See Manual
Spark Plug Check Search
Fuel/Power Mid-Grade 89 Oct
Identification
The serial number for the Yamaha XTO Offshore 450 V8 is typically found on a plate located on the transom bracket.