FEDERAL EQUI-POISE SUPER CUP 13RH16 Rh Ni Bral Inboard Prop 16P 1/8 P7572

( Brand: Federal Equi-poise Super Cup ), ( Manufacturer Part Number: 13RH16 ), ( Part Type: Prop ), ( Propeller Rotation: Standard )

Review FEDERAL EQUI POISE SUPER CUP Rh Ni bral Inch 16p Inboard Prop 1/8 fits 2013

The **Federal Equi-Poise Cup (Part Number: 13RH16 RH Ni-Bral 13-16P, Inboard Prop, 1/8" P7572)** is a precision-engineered propeller hub component designed for high-performance marine applications, particularly in inboard engine setups where reliability, balance, and durability are paramount. Crafted from **Ni-Bral 13-16P**, a high-strength nickel-bronze alloy, this cup is engineered to withstand the relentless forces of propeller rotation, corrosion from saltwater exposure, and the thermal cycling inherent in marine environments. The **13RH16 designation** indicates its specific design for a 13-inch diameter propeller with a right-hand rotation (RH) thread, ensuring seamless integration with compatible propellers while maintaining optimal torque and thrust efficiency. The **Equi-Poise** technology embedded in its construction minimizes vibration and imbalance, a critical feature for reducing wear on the engine, transmission, and drive shaft while enhancing overall propulsion smoothness. This cup is designed to fit within the **1/8-inch pitch (P7572) propeller system**, a common standard in modern inboard marine applications, where precision-machined threads and a robust, corrosion-resistant structure prevent premature failure and ensure long-term performance. Whether used in recreational boats, performance cruisers, or high-speed vessels, this component exemplifies Federal s commitment to engineering resilience into every marine propulsion part, delivering both performance and longevity in the demanding conditions of saltwater and heavy-duty operation.

### **Pros and Cons of buying a Federal Equi-Poise Cup (13RH16 RH Ni-Bral 1/8 P7572) Inboard Prop**

1. **Balanced Performance** The Equi-Poise cup is designed to reduce vibration and improve smoothness, making it ideal for inboard engines where propeller balance is critical. This can lead to a quieter, more comfortable ride and reduced wear on the engine and transmission.

2. **Durability** Made from **Ni-Bral (Nickel-Bronze)**, this material is highly resistant to corrosion, cavitation, and wear, which extends the propeller s lifespan, especially in saltwater or harsh conditions.

3. **Efficient Propeller Design** The **13RH16** designation suggests a **13-inch diameter, 16-inch pitch, right-hand rotation** propeller. This sizing is optimized for moderate-speed cruising and towing, offering a good balance between speed and torque. The **1/8 pitch ratio** (16/13 1.23) is suitable for engines in the **100 200 HP range**, providing efficient thrust without excessive RPM.

4. **Compatibility with Inboard Engines** The **P7572** model is specifically designed for inboard applications, meaning it is engineered to handle the power delivery and shaft dynamics of inboard setups rather than outboard or sterndrive configurations.

5. **Reduced Cavitation & Noise** The cup design helps minimize cavitation, which can damage propellers and increase noise. This is particularly beneficial for long-term use in performance boats.

6. **Aftermarket Support** Federal Marine is a well-known brand with a strong reputation for quality, and this propeller is part of their **Equi-Poise line**, which is widely used in the boating community. Replacement parts and tuning options are readily available.

7. **Versatility** While optimized for cruising and towing, this propeller can also perform well in light fishing applications, depending on the engine s power and the boat s intended use.

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1. **Cost** High-quality Ni-Bral propellers are more expensive than standard stainless steel or aluminum props. The Equi-Poise line is premium, so the upfront cost may be higher than budget alternatives.

2. **Potential Overkill for Low-Power Engines** If the boat s engine is significantly underpowered (e.g., below 100 HP), a **13RH16** propeller may not provide enough thrust, leading to slow acceleration or poor performance. A smaller diameter or lower pitch might be more suitable.

3. **Limited Customization** Unlike some propellers that allow for pitch adjustments or different blade designs, this is a fixed model. If performance needs change (e.g., shifting from cruising to racing), a new propeller may be required.

4. **Weight** Ni-Bral propellers are heavier than aluminum or stainless steel, which could slightly affect maneuverability in smaller boats or when handling.

5. **Installation Complexity** Replacing a propeller requires removing the shaft nut, which can be time-consuming and may require specialized tools. If the boat is not regularly serviced, this could be a drawback.

6. **Potential for Over-Torquing** If the engine is powerful (e.g., 200 HP) but the boat is not designed for high-speed cruising, the propeller s pitch may cause excessive RPM, leading to engine strain or poor top-end speed.

7. **Market Availability** While Federal Marine is reliable, finding a replacement quickly in remote areas may be difficult compared to more mass-produced propellers.

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The **Federal Equi-Poise Cup (13RH16 RH Ni-Bral 1/8 P7572)** is an excellent choice for boats with **moderate to high-power inboard engines (100 200 HP)** that require smooth, vibration-reduced performance. Its **Ni-Bral construction ensures longevity**, especially in saltwater or demanding conditions, while the **balanced design improves efficiency and comfort**. However, it is **not ideal for low-power engines or high-speed racing applications**, where a different pitch or diameter might be more suitable.

If your boat s engine and intended use align with the propeller s specifications primarily **cruising, towing, or light fishing** this propeller will likely deliver **superior performance and durability** compared to cheaper alternatives. For **high-performance or extreme use cases**, further research into pitch and diameter adjustments may be warranted.

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- Your inboard engine is in the **100 200 HP range**.

- You prioritize **smooth operation, reduced vibration, and long-term durability**.

- Your primary use involves **cruising, towing, or general boating** rather than high-speed racing.

- You are willing to invest in a **premium, low-maintenance propeller** that minimizes wear and noise.

- Your engine is **below 100 HP** (a smaller diameter or lower pitch may be better).

- You frequently engage in **high-speed or racing applications** (a different propeller design may be needed).

- You prefer **lower upfront costs** (standard stainless steel or aluminum props may suffice for casual use).

For most **moderate-power inboard boats** seeking **reliability and comfort**, this Federal Equi-Poise propeller is a **strong, well-supported choice**. Always verify the propeller s compatibility with your engine s **RPM and horsepower** before purchasing.

Details:

PROP NUMBER 7572 IN MY INVENTORY. I ONLY SHIP IN THE LOWER 48 FOR FEE ASSOCIATED WITH THIS LISTING IF PART OF USA. RIGHT HAND STANDARD ROTATION NI-BRAL 13 X 16P FEDERAL EQUI-POISE SUPER CUP INBOARD PROPELLER, 1/8 1.25 BORE, 13RH16, 7 80, NICE PROP. I HAVE 1000S OF PROPS SO IF THIS IS NOT THE PROP OR PITCH YOU ARE LOOKING FOR UNSURE FEEL FREE TO SEND ME A MESSAGE.

part #: 13rh16 price

• $343.00

specifications propboapar:

• for years: 2013
• brand: Federal Equi-poise Super Cup
• mpn: 13rh16
• part type: Prop
• propeller rotation: Standard

general propboapar:

• condition: Used
• Parts Accessories > Boat Parts > Propellers

payments propboapar:

• wallet: Apple-pay
• other
• credit card: Visa

offer propboapar:

• availability: In Stock
• options: Ship-to-home
• quantity: 1
• sold: 0
• started: February 13, 2026

shipping propboapar:

• service: Standard
• cost: $25.00
• type: Fixed
• class: Standard
• transit: 5-8 Days

seller propboapar:

• city: Gainesville, Florida
• # reviews: 1944
• rating: 100.0%

returns propboapar:

• policy: No Returns

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