Description
Mach4 Stainless Steel Propeller | Boat Supply Store
Engineered for a significant performance uplift on 40-150hp applications, this 4-blade propeller delivers an exceptional hole shot and refined handling characteristics. Its 13-inch diameter and 21-inch pitch, combined with a Swept Cleaver design and large free-flowing exhaust ports, provide superior acceleration and stern lift. Constructed from industry-leading TP17 stainless steel with 20% higher chromium content than competitors, it offers robust corrosion resistance and durability for demanding marine environments.
Key Features
- Unprecedented hole shot and handling
- Superior rough water stability
- Enhanced acceleration and cornering
- Increased reverse thrust for watersports
- Exceptional durability with TP17 stainless steel
- Better corrosion resistance than competitors
- Optimized exhaust flow for peak performance
- Ideal for load-carrying applications
Specifications
| Product Specifications | |
|---|---|
| Hand | Right Hand |
| Material | Stainless Steel |
| Blade Count | 4-Blade |
| Diameter | 13" |
| Pitch | 21" |
| Model | EX1/EX2-1321-4 |
| Steel Type | TP17 |
| Exhaust | Large free-flowing ports |
| Engine Application | 40-150hp |
Who This Is For
Boaters with 40-150hp engines seeking a substantial performance upgrade, especially those prioritizing exceptional hole shot, handling, and stern lift for watersports or towing. This propeller is ideal for tri-toons, bay boats, and sterndrive vessels requiring enhanced low-end and mid-range power.
How It Compares
| Feature | Mach4 Stainless Steel Propeller | Competitor |
|---|---|---|
| Blade Count | 4 | 3, 4 |
| Diameter | 13" | 13.5", 13" |
| Pitch | 21" | — |
| Material | TP17 Stainless Steel | X7 Stainless Steel, Stainless Steel |
| Design | Swept Cleaver | Proprietary, Concord |
| Exhaust Ports | Large Free Flowing | Standard, Standard |
Common Concerns Answered
What is the primary benefit of the Turning Point Express Mach4 propeller?
The primary benefit is a significant improvement in acceleration, handling, and rough water stability, particularly noticeable in the hole shot and reverse thrust capabilities, making it a superior upgrade for performance-oriented boaters.
Are there any trade-offs with this 4-blade propeller?
Some users may observe a marginal reduction in top-end speed compared to a 3-blade propeller; however, this is a typical trade-off for the substantial gains in low-end torque, mid-range acceleration, and overall handling that the Mach4 provides.
Why is the TP17 stainless steel material highlighted?
TP17 stainless steel offers superior strength and durability, boasting nearly 250% more strength and 5X the durability of standard stainless steel, along with a 20% higher chromium content for enhanced corrosion resistance against harsh marine conditions.
Frequently Asked Questions
What type of boat applications is the Turning Point Express Mach4 propeller best suited for?
It is ideally suited for 40-150hp sterndrive boats, tri-toons, bay boats, and any vessel requiring enhanced stern lift, superior hole shot for watersports, or improved load-carrying capacity.
What makes the TP17 stainless steel material superior?
TP17 stainless steel is superior due to its significantly higher tensile strength (nearly 250% stronger) and durability (5X more durable) compared to standard stainless steel, coupled with a 20% greater chromium content, which provides exceptional resistance to corrosion and pitting in saltwater environments.
How does the large free-flowing exhaust port design benefit performance?
The large, free-flowing exhaust ports allow for significantly more efficient exhaust gas evacuation (40% more area versus competitors), reducing backpressure and enabling the engine to operate more freely, thereby enhancing acceleration and overall engine efficiency.
Is a hub kit required for installation, and how do I select the correct one?
Yes, a separate hub kit is required for installation. Selecting the correct hub kit is crucial and depends on your specific engine make, model, and year; consult the Turning Point Propellers selection chart or contact a marine specialist for precise compatibility.
What is the primary benefit of the Turning Point Express Mach4 propeller?
The primary benefit is a significant improvement in acceleration, handling, and rough water stability, particularly noticeable in the hole shot and reverse thrust capabilities, making it a superior upgrade for performance-oriented boaters.
