Description
Turning Point Mach4 Stainless Steel Propeller EX-1513-4L | Boat Supply Store
Boaters seeking to overcome sluggish acceleration and improve overall vessel control will find significant gains with this advanced propeller. Its proprietary TP17 stainless steel construction, featuring 20% higher chromium content, ensures superior strength and corrosion resistance over standard alloys, contributing to robust durability. The 15.3" diameter and 13" pitch, combined with a unique Dual Geometry blade design, facilitate exceptional hole shot and stern lift without compromising top-end velocity, making it ideal for demanding applications like watersports or heavy load carrying on bay boats.
Key Features
- Offers superior hole shot and acceleration due to Dual Geometry blade design.
- Provides enhanced handling and rough water stability with a 4-blade configuration.
- Built with proprietary TP17 stainless steel for unmatched strength and corrosion resistance.
- Generates increased horsepower efficiency through large, free-flowing exhaust ports.
- Delivers exceptional stern lift without sacrificing top-end speed.
- Features a Dual Geometry blade design incorporating variable rake and aggressive pitch.
- Engineered for optimal performance on sterndrive boats, tri-toons, and bay boats.
- Guaranteed robust durability and longevity in harsh marine environments.
Specifications
| Product Specifications | |
|---|---|
| Brand | Turning Point Propellers |
| Model | Express Mach4 |
| Blade Count | 4-Blade |
| Rotation | Left Hand |
| Diameter | 15.3" |
| Pitch | 13" |
| Material | TP17 Stainless Steel |
| MPN | 31501340 |
| Propeller SKU | EX-1513-4L |
Who This Is For
Ideal for boaters aiming to significantly boost their vessel's acceleration, cornering capability, and load-carrying capacity, particularly those operating sterndrive boats, tri-toons, and bay boats. This propeller is also a prime choice for those engaged in watersports seeking improved initial launch performance.
How It Compares
| Feature | Turning Point Mach4 Stainless Steel Propeller EX-1513-4L | Mercury |
|---|---|---|
| Blade Count | 4 | 4 |
| Diameter | 15.3" | 15.3" |
| Pitch | 13" | — |
| Rotation | Left Hand | Left Hand |
| Material | TP17 Stainless Steel | Stainless Steel |
| Blade Design | Dual Geometry (Variable Rake/Aggressive Pitch & Offshore Style) | Performance-tuned 4-blade |
Common Concerns Answered
Why does this propeller require a separate hub kit?
A separate hub kit is essential for ensuring proper fitment and engagement with your specific sterndrive or outboard engine, guaranteeing optimal power transfer and protecting your drivetrain. This modular approach allows for broader engine compatibility across different boat models.
I'm concerned about potentially losing top-end speed when upgrading to a 4-blade propeller.
The Mach4's unique Dual Geometry blade design is specifically engineered to maintain or even improve top-end speed by optimizing hydrodynamic efficiency, meaning you benefit from enhanced acceleration and load-carrying without sacrificing your vessel's maximum velocity.
What if I'm already satisfied with my current OEM propeller?
While OEM propellers are functional, the Turning Point Mach4 often provides a demonstrable upgrade in hole shot, handling, and load capacity, as consistently reported by satisfied customers who view it as a significant performance enhancement over standard equipment.
Frequently Asked Questions
What is the primary benefit of the Turning Point Express Mach4 propeller?
The primary benefit is a unique combination of superior hole shot, enhanced handling, and robust stern lift without sacrificing top-end speed, attributed to its Dual Geometry blade design and advanced TP17 stainless steel construction.
What type of boats is the Turning Point Express Mach4 propeller best suited for?
This propeller is exceptionally well-suited for sterndrive boats, tri-toons, and bay boats, particularly those used for watersports or frequently operated with heavy loads, benefiting from its acceleration and load-carrying capabilities.
What makes the TP17 stainless steel material superior?
TP17 stainless steel contains 20% higher chromium content than standard stainless steel, providing significantly greater strength, durability, and resistance to corrosion and abrasion for extended operational life in marine environments.
Does this propeller require a hub kit?
Yes, this propeller requires the purchase of a separate, compatible hub kit to ensure proper installation and optimal performance with your specific engine and drive system.
Is this a left-hand or right-hand rotation propeller?
This specific model, EX-1513-4L, is a left-hand rotation propeller, designed for twin-engine applications where one engine turns counter-clockwise.