The Turning Point Express Mach3 OS 31511520 is a high-performance 3-blade stainless steel propeller designed for serious boaters seeking exceptional acceleration, handling, and fuel efficiency. This left-hand rotation propeller features a 15.6-inch diameter and 15-inch pitch, optimized for 150-300+hp outboards and sterndrives with 4.75-inch gearcases.
Advanced Design Features:
- Engineered with refined cup geometry, leading and trailing edges for superior water flow
- Progressive rake and aggressive blade design deliver excellent hole shot and impressive bow lift
- Class-leading cornering performance for confidence in tight maneuvers
- Large diameter configuration provides outstanding mid-range fuel economy
- Oversized exhaust ports with 40% more flow area reduce backpressure and maximize horsepower
TP17 Proprietary Stainless Steel Construction:
- 20% higher chromium content than competitive props for enhanced corrosion resistance and brilliant shine
- Nearly 250% stronger than conventional stainless steel with 5X greater durability
- Advanced casting technology enables radical performance-oriented blade geometry
- Performance-tuned pitch, rake angles, and exhaust vents optimize all-around performance
Application and Compatibility:
Perfectly matched to large horsepower bay boats, offshore center consoles, and high-performance pontoons/tri-toons. Compatible with all major outboard brands including Mercury, Yamaha, Suzuki, Honda, Evinrude, Johnson, Tohatsu, and others with 4.75-inch gearcases. Also fits Mercury Alpha One and Bravo One, and Volvo Penta SX sterndrives.
Installation Requirements:
Requires separate hub kit installation: 500-series hub kits for engines under 200hp, or 700-series hub kits for engines 200hp and above. Consult application chart for specific hub kit part numbers for your engine.
