A boat propeller is a crucial component in the propulsion system of a boat, responsible for converting the engine's rotational power into forward or backward thrust. They come in various sizes and styles, each designed to match specific boat types and performance needs. The design of the propeller affects the boat's speed, handling, and fuel efficiency, making its selection important for optimal boat performance. In our online shop, we stock a variety of options to match your boat's specifications. Ensure you choose the right hub and bearing for a smooth fit and operation, whether you need a right-hand (RH) prop or another configuration. Our knowledgeable customer support team is ready to assist you in finding the perfect propeller to enhance your boat's performance and reliability.
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1-2 weeks delivery time Super Marine zinc collar anodes for Gori 3-blade propeller installations, available for both saildrive and shaft-line configurations. The range includes seven 4-hole collar anodes with outside diameters from Ø65 to Ø127 mm, inside diameters from Ø45 to Ø90 mm and heights from 23 to 50 mm. Each version is selected according to installation type and collar dimensions.
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$ 65.54
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1-2 weeks delivery time Super Marine zinc propeller end anodes for compatible Gori propeller installations. The range includes four sizes with outside diameters from Ø25 to Ø44 mm, inside diameters from Ø6 to Ø8.5 mm and heights from 16 to 33 mm. Zinc weights range from 35 to 260 g, and all versions are supplied in bulk.
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$ 11.46
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1-2 weeks delivery time Super Marine zinc sacrificial anodes for J-Prop propellers with adjustable blades, available in Ø60, Ø80 and Ø90 mm sizes. The range covers heights from 26 to 37 mm and weights from 360 g to 1.095 kg. Each version is selected according to the required anode diameter and dimensions of the J-Prop installation.
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$ 23.89
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1-2 weeks delivery time Super Marine zinc sacrificial anodes for Max-Prop propellers, available in Ø63, Ø68, Ø83 and Ø100 mm sizes. The Ø63, Ø68 and Ø83 mm versions feature a 6-hole mounting configuration, while the Ø100 mm model uses 3 mounting holes. Heights range from 39 to 60 mm and weights from 278 g to 1.08 kg.
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$ 26.76
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1-2 weeks delivery time Super Marine zinc sacrificial anodes for Variprop propellers with adjustable blades. The range includes VP64, DF-80, DF-107, DF-112 and DF-128 / DF-140 applications with outside diameters from Ø55 to Ø105 mm and heights from 25 to 56 mm. The VP64 version uses a single mounting hole, while the DF-series anodes feature a 3-hole mounting configuration. Zinc weights range from 240 g to 1.13 kg.
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$ 36.13
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1-2 weeks delivery time Plastimo zinc ogive anodes for Max Prop marine propellers, available in two sizes. Plastimo 401237 measures Ø43x50 mm and weighs 0.3 kg, while Plastimo 401245 measures Ø84x60 mm, features a Ø46 mm drilling diameter and weighs 0.8 kg. The zinc material is specified by Plastimo as compliant with MIL-A-18001K. Plastimo 401237 corresponds to OEM reference OG010/6F.
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$ 19.10
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1-2 weeks delivery time Plastimo zinc collar sacrificial anodes for Max Prop applications, available with Ø42 mm and Ø46 mm internal diameters. Both versions have an outside diameter of Ø92 mm and a height of 25 mm. Plastimo 420807 features a Ø42 mm internal diameter and weighs 0.560 kg, while Plastimo 420808 features a Ø46 mm internal diameter and weighs 0.580 kg. The zinc material is specified by Plastimo as compliant with MIL-A-18001K.
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$ 42.20
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1-2 weeks delivery time The Vetus P4E14X propeller (SKU: P4E14X) is a four-bladed bronze propeller designed for optimal propulsion and smooth operation across a wide range of marine applications. With a 14-inch diameter, it provides enhanced thrust and stability compared to standard three-blade models, making it ideal for boats that require superior maneuverability and reduced vibration. Constructed from high-quality manganese bronze, the P4E14X offers outstanding durability, flexibility, and corrosion resistance. Rotation direction and pitch must be specified when ordering.
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$ 961.86
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1-2 weeks delivery time The Vetus P4E15X propeller (SKU: P4E15X) is a four-bladed bronze propeller engineered for superior propulsion efficiency, smooth operation, and precise maneuverability. With a 15-inch diameter, it delivers enhanced thrust and low vibration, making it ideal for vessels requiring reliable performance and quiet operation. Constructed from high-grade manganese bronze, the P4E15X offers exceptional durability, flexibility, and corrosion resistance. The sense of rotation and pitch must be specified when ordering.
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$ 1,068.79
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1-2 weeks delivery time The Vetus P4E16X propeller (SKU: P4E16X) is a four-bladed bronze propeller engineered for efficient propulsion and smooth operation. With a 16-inch diameter, it provides excellent thrust, stability, and reduced vibration, making it suitable for vessels that require high maneuverability and quiet performance. Manufactured from high-quality manganese bronze, the P4E16X combines superior strength, flexibility, and corrosion resistance. The rotation direction and pitch must be specified when ordering.
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$ 1,103.82
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1-2 weeks delivery time The Vetus P4E17X propeller (SKU: P4E17X) is a four-bladed bronze propeller designed to deliver smooth propulsion, optimal thrust, and reduced vibration. With a 17-inch diameter, it provides excellent performance for vessels requiring enhanced maneuverability and stability at various speeds. Manufactured from high-quality manganese bronze, the P4E17X combines strength, flexibility, and corrosion resistance. The direction of rotation and pitch must be specified when ordering.
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$ 1,228.90
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1-2 weeks delivery time The Vetus ASGAT20+ Custom Machining Service (Art. ASGAT20+) provides precision machining of standard Vetus propellers — models P3B, P3C, P4E, or P4G — to meet your specific requirements. Each propeller is customized to the requested dimensions, shaft configuration, and rotation direction, ensuring a perfect fit for your vessel. Please provide all machining details in the notes section of your order.
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$ 312.70
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1-2 weeks delivery time Flexofold bronze anode plate old model 3-blade is designed for older Flexofold propellers with a 3-hole mounting, providing effective galvanic corrosion protection and extending propeller service life.
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$ 68.54
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1-2 weeks delivery time Flexofold disc anode set for saildrive Ø32 mm consists of two disc anodes developed for side-mounted Flexofold saildrive systems, ensuring reliable corrosion protection and supplied as a complete set.
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$ 46.64
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1-2 weeks delivery time Flexofold tapered pivot pin locking screw M8x25 is an original spare part used to securely lock the pivot pin in Flexofold propeller systems, ensuring stable and reliable operation.
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$ 7.10
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1-2 weeks delivery time Flexofold tap washer for saildrive is an original Flexofold component designed for saildrive installations, providing a reliable seal and supporting correct assembly of saildrive components.
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$ 7.10
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1-2 weeks delivery time Flexofold pivot pin Ø16 mm is a precision tapered pin for Flexofold propeller systems, ensuring smooth blade movement and secure fitting, supplied as a set of 3 pieces.
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$ 21.12
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1-2 weeks delivery time Flexofold shock absorbers for 2-blade old type are designed to reduce vibration and impact loads on older Flexofold 2-blade propellers, helping protect drivetrain components and improve durability.
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$ 32.86
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1-2 weeks delivery time Flexofold pivot pin Ø14 mm is a genuine Flexofold spare part that ensures correct alignment and smooth movement of propeller blades, providing a precise and reliable fit.
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$ 23.28
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1-2 weeks delivery time Flexofold propeller nut pilot Ø32 mm is used in Flexofold propeller systems to ensure accurate centering and secure mounting of the propeller on the shaft.
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$ 40.16
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What are the differences between inboard and outboard boat propellers?
Inboard and outboard boat propellers differ primarily in their placement and integration with the boat's engine. Inboard propellers are part of a system where the engine is mounted inside the boat, driving the propeller through a shaft that extends to the hull's exterior. This setup is commonly used in larger boats and offers better protection for the propeller. Outboard propellers, on the other hand, are attached to an outboard motor, which is mounted externally on the stern of the boat. This arrangement provides easier access for maintenance and replacement, and is typical for smaller boats and sailing vessels. Additionally, inboard propellers often require a more complex and protected installation, while outboard setups allow for greater flexibility and ease of handling.
When searching for boat props, it's important to find the right propeller for your boat to ensure optimal performance. We offer a wide range of boat propellers for sale, including performance propellers, sterndrive, and general propeller-GP models. Our inventory includes PowerTech propellers and custom inboard propellers, perfect for ski and wake boats. Our expert team can help you with any custom inboard propeller needs and provide replacement boat propellers. We strive to offer one of the largest selections of boat props at the lowest prices. Whether you're dealing with a bent prop shaft or need a duo blade powertech prop, we aim to provide consistent quality and fuel economy.
How do the materials used in inboard boat props and shaft affect their performance and durability?
The materials used in boat propellers significantly influence their performance and durability. Bronze propellers, commonly used in many inboard applications, offer excellent corrosion resistance and durability, making them suitable for long-term use in saltwater environments. Stainless steel propellers, on the other hand, provide a stronger alternative with greater impact resistance and less flex under load, enhancing performance by maintaining more precise blade shape at higher speeds.
Both materials ensure that the propellers can withstand the harsh marine environment while supporting the specific performance requirements of different types of boats, from sailing vessels to motor-driven crafts.
What is the impact of inboard propellers blade count on a boat’s maneuverability and thrust?
The number of blades on a boat propeller plays a crucial role in determining the boat's maneuverability and thrust. Generally, a propeller with more blades, such as a four or five-blade propeller, provides smoother operation and better traction in the water, which enhances maneuverability at lower speeds and in tight conditions. Fewer blades, like those on a three-blade propeller, typically generate greater top speed and are more efficient, making them ideal for faster inboard and outboard boats. The choice of blade count should align with the boat's intended use and performance goals, whether it's for leisurely sailing or high-speed boating, ensuring optimal propulsion and handling characteristics.
Find the ideal setup for your boating style in our complete range of Outboard Propellers.
What are the basics of inboard boat propellers and how do they differ from other types?
| Aspect | Inboard Propeller System | Other Propulsion Types (Outboard, Sterndrive) |
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| Engine Location | Mounted centrally inside the hull, forward of the transom. | Engine or drive unit is attached to or through the transom. |
| Propeller Drive | Fixed propeller shaft connected directly to the transmission. | Propeller is on a vertical driveshaft or integrated lower unit. |
| Steering Mechanism | Rudder directs water flow from the propeller for directional change. | The entire motor or drive unit swivels to change thrust vector. |
| Efficiency & Vibration | Long, straight shaft alignment promotes smooth, efficient power transfer. | Universal joints or gears in lower units can absorb more energy. |
| Typical Hull Suitability | Common on larger sailboats, trawlers, cruisers, and workboats. | Dominant on smaller recreational powerboats and runabouts. |
How does choosing between a 3-blade and 4-blade propeller affect performance and fuel efficiency?
A 3 blade propeller often provides a slight edge in top speed and maximum efficiency for lightweight, faster hulls. In contrast, a 4 blade propeller typically offers superior low-speed thrust, smoother operation, and better cruise efficiency for heavier vessels, trading a bit of peak speed for improved grip and handling.
What do diameter and pitch mean when selecting the right inboard propeller?
Diameter is the circle described by the blade tips, governing thrust and load capacity. Pitch is the theoretical forward travel per revolution, dictating speed and engine load.
Together, they define the right prop for your engine and hull:
- A larger diameter increases low-end thrust.
- More pitch allows higher potential speed.
- Incorrect combinations cause over or under-revving.
How does the bore size influence the fit and balance of an inboard boat propeller?
The bore is the central hole that mates the propeller to the tapered shaft. An imprecise fit causes wobbling, vibration, and potential damage to the shaft or strut. A perfectly matched bore, often achieved through CNC machining by brands like Acme Marine, ensures concentric balance and secure keyway engagement for marine propulsion integrity.
Where can you find high-quality inboard propellers for sale from brands like Acme?
Specialist prop shops and major marine distributors maintain an extensive inventory of inboard units from leading manufacturers. Propellers are available directly from select boat builders or through authorized online retailers that cater to yacht and commercial operators. Brands like Michigan Wheel, OJ, and VEEM offer robust options in NiBral material known for its strength and corrosion resistance.