Description
Turning Point Mach4 Stainless Steel Propeller | Boat Supply Store
For boaters demanding immediate acceleration and precise control, this 4-blade stainless steel propeller addresses common shortcomings in mid-range horsepower applications. It features a 13.5" diameter and a 15" pitch, engineered with a proprietary TP17™ stainless steel construction that is significantly stronger and more durable than standard alloys. This design is ideal for enhancing sterndrive boats, tri-toons, and bay boats, particularly for watersports enthusiasts requiring robust stern lift and improved load-carrying capacity.
Key Features
- Unmatched hole shot with 4-Blade Swept Cleaver design
- Superior handling and rough water stability
- Exceptional reverse thrust, up to 46% more
- Proprietary TP17™ stainless steel construction
- Increased durability with 20% higher chromium content
- Enhanced exhaust flow with large free-flowing ports
- Optimized for mid-range horsepower sterndrive applications
- Delivers high-end speed without compromise
Specifications
| Product Specifications | |
|---|---|
| Brand | Turning Point Propellers |
| Model | Express Mach4 |
| Part Number | EX1/EX2-1315-4 |
| Rotation | Right Hand |
| Blade Count | 4 |
| Diameter | 13.5 inches |
| Pitch | 15 inches |
| Material | TP17™ Stainless Steel |
| Exhaust Ports | Large Free-Flowing |
Who This Is For
Boaters seeking a significant performance upgrade in acceleration and maneuverability, especially those operating sterndrive, tri-toon, or bay boats. This propeller is engineered for demanding use cases like watersports and heavy load scenarios.
How It Compares
| Feature | Turning Point Mach4 Stainless Steel Propeller | Mercury Mirage Plus |
|---|---|---|
| Blade Count | 4 | 3 |
| Material | TP17™ Stainless Steel | X7 Stainless Steel |
| Diameter | 13.5" | 13.5" |
| Pitch | 15" | — |
| Reverse Thrust | Up to 46% more than comparable designs | Typically less capable |
| Exhaust Flow Area | 40% more than competitive product | Typically less capable |
Common Concerns Answered
Why is the initial cost higher than aluminum propellers?
The Turning Point Express Mach4 utilizes advanced TP17™ stainless steel, offering 20% higher chromium content, 250% greater strength, and 5X the durability of standard stainless steel, providing a superior long-term investment in performance and longevity.
Customers praise the performance; what are the main benefits they report?
Customer sentiment is overwhelmingly positive, with frequent mentions of exceptional hole shot, noticeably improved handling, superior load-carrying capabilities, and a significant overall performance upgrade compared to previous propeller setups.
Does this propeller come with everything needed for installation?
No, this propeller requires the purchase of a separate, compatible hub kit. Ensure you select the correct hub kit for your specific engine and boat application to ensure proper fitment and function.
Frequently Asked Questions
What is the primary benefit of the Turning Point Express Mach4 propeller?
The primary benefit is its revolutionary 4-blade Swept Cleaver design, engineered to provide unmatched hole shot, superior handling, and enhanced stability for mid-range horsepower engines without sacrificing top-end speed.
What type of boats is the Turning Point Express Mach4 propeller best suited for?
It is best suited for sterndrive boats, tri-toons, and bay boats that can benefit from enhanced acceleration, improved load-carrying capabilities, and increased stern lift, particularly in watersports applications.
What makes the TP17 stainless steel material superior?
TP17™ stainless steel is superior due to its composition of 20% higher chromium content, resulting in 250% greater strength and 5X increased durability compared to standard stainless steel alloys, offering enhanced corrosion resistance and longevity.
Does this propeller require a hub kit?
Yes, this Turning Point Express Mach4 propeller requires the purchase of a separate, compatible hub kit for installation. Please refer to the prop selector on the Turning Point Propellers website to ensure correct fitment.
What is the pitch and diameter of this propeller?
This Turning Point Express Mach4 propeller has a diameter of 13.5 inches and a pitch of 15 inches.
