Description
Turning Point Mach4 Stainless Prop 14.5x17 4-Blade LH | Boat Supply Store
Elevate your vessel's acceleration and stability with the Turning Point Express Mach4 Stainless Steel Propeller. Engineered with a revolutionary Dual Geometry blade design, this 4-blade propeller, measuring 14.5" diameter x 17" pitch, delivers an aggressive hole shot without compromising high-speed efficiency, a common limitation in other multi-blade designs. Its superior TP17™ stainless steel construction, featuring 20% higher chromium content, provides exceptional corrosion resistance, making it ideal for demanding marine environments and performance applications on sterndrive boats and tri-toons.
Key Features
- Aggressive Hole Shot enabled by the specialized Hustler high-performance blade geometry.
- High-Speed Performance without top-end speed reduction due to the integrated offshore style blade.
- Superior Corrosion Resistance from proprietary TP17™ stainless steel with 20% higher chromium content.
- Enhanced Acceleration and Cornering for a more responsive boating feel.
- Increased Stern Lift for improved planing and load-carrying capability.
- Optimal Horsepower Utilization via large, free-flowing exhaust ports.
- Left-Hand Rotation for specific twin-engine or counter-rotating sterndrive applications.
- Durable 4-Blade Configuration for maximum thrust and smooth operation.
Specifications
| Product Specifications | |
|---|---|
| Brand | Turning Point Propellers |
| Model | Express Mach4 |
| Rotation | Left Hand |
| Blade Count | 4-Blade |
| Diameter | 14.5" |
| Pitch | 17" |
| Material | Proprietary TP17™ Stainless Steel |
| Part Number | EX-1417-4L |
| MPN | 31501741 |
| SKU | CWR56041 |
Who This Is For
Boaters seeking to significantly improve their vessel's acceleration, handling in rough water, and stern lift. This propeller is particularly advantageous for sterndrive boats, tri-toons, and bay boats utilized for watersports or carrying substantial loads.
How It Compares
| Feature | Turning Point Mach4 Stainless Prop 14.5x17 4-Blade LH | Competitor |
|---|---|---|
| Blade Count | 4 | 3, 4 |
| Blade Design | Dual Geometry (Hustler high performance & offshore style) | Variable Rake, High Skew, Standard 4-Blade |
| Material | TP17™ Stainless Steel (20% higher chromium) | X7 Stainless Steel, Stainless Steel |
| Diameter | 14.5" | 14.5", 14.5" |
| Pitch | 17" | — |
| Rotation | Left Hand | Left Hand, Left Hand |
Common Concerns Answered
What is the primary benefit of the Turning Point Express Mach4 propeller?
The primary benefit is its revolutionary Dual Geometry blade design which provides an exceptional combination of aggressive hole shot and high-speed performance, overcoming the typical top-end speed loss seen with other four-blade propellers. This translates to quicker acceleration out of the hole and sustained speed on plane.
Does the Turning Point Express Mach4 propeller require a hub kit?
Yes, the Turning Point Express Mach4 propeller requires a specific hub kit for installation. This is an additional purchase and is essential for proper fitment and operation. Please ensure you select the correct hub kit for your specific engine model.
Why is the stainless steel used in the Mach4 propeller considered superior?
The Mach4 utilizes proprietary TP17™ stainless steel, which contains 20% higher chromium content compared to standard stainless steel alloys. This enhanced composition offers superior corrosion resistance, ensuring greater durability and longevity in harsh marine environments, including saltwater exposure.
Frequently Asked Questions
What type of boat applications is the Turning Point Express Mach4 propeller best suited for?
This propeller is ideal for sterndrive boats, tri-toons, and bay boats. It excels in applications requiring improved hole shot for watersports, enhanced handling in rough water conditions, and increased stern lift for carrying heavier loads or maintaining plane at lower speeds.
What is the difference between the two blade geometries on the Mach4 propeller?
The Dual Geometry design integrates characteristics of both a 'Hustler' high-performance blade and an 'offshore' style blade. This fusion allows for aggressive cupping and rake for immediate acceleration (Hustler aspect) while maintaining efficiency and lift at higher speeds (offshore aspect), a distinct advantage over single-geometry designs.
What is the specific benefit of the large, free-flowing exhaust ports?
The large, free-flowing exhaust ports are engineered to reduce backpressure. This reduction allows the engine to breathe more freely, potentially maximizing horsepower output and contributing to overall performance gains, particularly for engines tuned for higher power delivery.
How does the 4-blade design contribute to performance?
The four-blade configuration offers increased blade surface area, which translates to greater thrust. This is instrumental in achieving quicker acceleration, better load-carrying capacity, and improved grip on the water, especially when maneuvering at lower speeds or during aggressive turns.
Can this propeller be used on a single-engine application?
The Turning Point Express Mach4 EX-1417-4L is a left-hand rotation propeller. While it can be used in a single-engine application if your engine requires left-hand rotation, it is most commonly specified for twin-engine setups where one engine turns clockwise (right-hand) and the other counter-clockwise (left-hand) for optimal steering and performance.
