Description
Turning Point Mach4 15" x 15" SS Prop | Boat Supply Store
Engineered for explosive acceleration and superior cornering, this four-blade propeller transforms boat performance. Its innovative Dual Geometry blade design integrates aggressive pitch for a powerful hole shot with variable rake for precise handling, maintaining top-end speed. Constructed from proprietary TP17™ stainless steel, it offers exceptional strength and corrosion resistance, ideal for maximizing engine efficiency through its large exhaust ports.
Key Features
- Superior Hole Shot with Dual Geometry blade design combining Hustler and offshore blade profiles.
- Exceptional Cornering through precise blade geometry for responsive handling.
- Maximum Stern Lift for improved planing and stability with offshore-style blades.
- Uncompromised Top-End Speed unlike conventional four-blade designs.
- Extreme Durability via TP17™ proprietary stainless steel, 250% stronger than standard.
- Enhanced Engine Efficiency due to large, free-flowing exhaust ports.
- Right-Hand Rotation for standard sterndrive and outboard applications.
- Corrosion Resistance with a 20% higher chromium content in TP17™ steel.
Specifications
| Product Specifications | |
|---|---|
| Brand | Turning Point Propellers |
| Model | Express Mach4™ |
| Part Number | EX-1515-4 |
| Material | TP17™ Stainless Steel |
| Blade Count | 4 |
| Rotation | Right Hand |
| Diameter | 15" |
| Pitch | 15" |
| Exhaust Ports | Large, Free-Flowing |
Who This Is For
Boaters seeking a significant performance upgrade for watersports, sterndrives, tri-toons, and bay boats, especially those with 9.9-300+hp engines demanding improved hole shot, handling, and load-carrying capabilities.
How It Compares
| Feature | Turning Point Mach4 15" x 15" SS Prop | Competitor |
|---|---|---|
| Blade Design | Dual Geometry (2 Hustler, 2 Offshore) | 4-Blade Performance, 4-Blade Standard |
| Material | TP17™ Stainless Steel (20% higher chromium, 250% stronger) | High-Strength Stainless Steel, Stainless Steel |
| Exhaust Flow Area | 40% more than competitors | Standard, Standard |
| Hole Shot Performance | Exceptional (Hustler blade design) | Excellent, Good |
| Stern Lift | Maximum (Offshore blade design) | Excellent, Good |
Common Concerns Answered
Why is the initial cost higher than basic propellers?
The advanced TP17™ stainless steel construction and proprietary Dual Geometry blade design represent a significant engineering investment, providing superior durability and performance compared to standard propellers, justifying the premium price for long-term value.
Do I need to purchase anything else for installation?
Yes, a separate hub kit is required for installation. Please ensure you select the correct hub kit compatible with your specific engine make and model for proper fitment and secure mounting.
How does this propeller compare to OEM options?
Customer sentiment indicates substantial improvements in acceleration, handling, and overall boat performance when upgrading from OEM propellers, making it a recognized performance enhancement.
Frequently Asked Questions
What is the primary benefit of the Turning Point Express Mach4 propeller's dual blade geometry?
The Dual Geometry blade design combines the benefits of two Hustler high-performance blades for aggressive acceleration and two offshore-style blades for enhanced cornering and stern lift, optimizing overall boat dynamics.
What types of boats is the Turning Point Express Mach4 propeller best suited for?
This propeller is ideal for sterndrive boats, tri-toons, bay boats, and any vessel requiring a significant hole shot, improved handling, rough water stability, and enhanced load-carrying capacity, particularly those with 9.9-300+hp engines.
What is TP17 stainless steel and why is it superior?
TP17™ is a proprietary stainless steel alloy featuring 20% higher chromium content, making it 250% stronger and 5 times more durable than standard stainless steel, offering superior strength and corrosion resistance for marine environments.
Does the Turning Point Express Mach4 propeller require a hub kit?
Yes, this propeller requires a separate Turning Point hub kit for installation. It is crucial to select the correct hub kit for your specific outboard or sterndrive engine.
What is the warranty on the Turning Point Express Mach4 propeller?
Please refer to the manufacturer's official warranty policy, typically found on their support website or within the product documentation, for detailed information regarding warranty coverage and terms.