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 Max Prop Z120R3 round zinc sacrificial anode for Whisper 120 5-blade propellers. The anode features D1 52 mm, D2 71.5 mm, D3 90 mm, E 120 mm and K hole distance 61.9 mm. Designed as a replacement zinc anode for compatible Max Prop Whisper installations. Article code Z120R3, barcode 8720193068725.
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$ 102.69
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1-2 weeks delivery time Max Prop Z125T3 triangular zinc sacrificial anode for Classic 125 3-blade propellers. The anode features D1 80 mm, D2 100 mm, E 125 mm and K hole distance 86.6 mm. Designed as a replacement zinc anode for compatible Max Prop Classic installations. Article code Z125T3, barcode 8720193076102.
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$ 126.27
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1-2 weeks delivery time Max Prop Z126R3 round zinc sacrificial anode for Easy 126 and Whisper 127 5-blade propeller systems. The anode features D1 52 mm, D2 77.5 mm, D3 92 mm, E 126–127 mm and K hole distance 67.1 mm. Designed as a replacement zinc anode for compatible Max Prop Easy and Whisper installations. Article code Z126R3, barcode 8720193068732.
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$ 91.43
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1-2 weeks delivery time Max Prop Z129R3 round zinc sacrificial anode for Whisper 129 5-blade propeller systems. The anode features D1 56 mm, D2 80.5 mm, D3 104 mm, E 129 mm and K hole distance 69.7 mm. Designed as a replacement zinc anode for compatible Max Prop Whisper installations. Article code Z129R3, barcode 8720193068749.
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$ 123.29
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1-2 weeks delivery time Max Prop Z144R3 round zinc sacrificial anode for Whisper 144 5-blade propeller systems. The anode features D1 64 mm, D2 92.2 mm, D3 122 mm, E 144 mm and K hole distance 79.8 mm. Designed as a replacement zinc anode for compatible Max Prop Whisper installations. Article code Z144R3, barcode 8720193068756.
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$ 164.33
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1-2 weeks delivery time Max Prop Z145R3 round zinc sacrificial anode for Whisper 145 / 148 5-blade propeller systems. The anode features D1 65 mm, D2 90 mm, D3 117 mm and K hole distance 77.9 mm. Designed as a replacement zinc anode for compatible Max Prop Whisper installations. Article code Z145R3, barcode 8720193068763.
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$ 164.33
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1-2 weeks delivery time Max Prop Z160T3 triangular zinc sacrificial anode for Classic 160 3-blade propellers. The anode features D1 100 mm, D2 130 mm, E 160 mm and K hole distance 112.6 mm. Designed as a replacement zinc anode for compatible Max Prop Classic installations. Article code Z160T3, barcode 8720193068770.
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$ 169.81
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1-2 weeks delivery time Max Prop Z161R3 round zinc sacrificial anode for Whisper 161 5-blade propeller systems. The anode features D1 71 mm, D2 103.2 mm, D3 130 mm, E 161 mm and K hole distance 89.4 mm. Designed as a replacement zinc anode for compatible Max Prop Whisper installations. Article code Z161R3, barcode 8720193068787.
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$ 205.36
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1-2 weeks delivery time Max Prop Z164R3 round zinc sacrificial anode for Whisper 164 5-blade propeller systems. The anode features D1 77 mm, D2 105.5 mm, D3 140 mm, E 164 mm and K hole distance 91.4 mm. Designed as a replacement zinc anode for compatible Max Prop Whisper installations. Article code Z164R3, barcode 8720193068794.
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$ 205.36
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1-2 weeks delivery time Max Prop Z190R3 round zinc sacrificial anode for Whisper 190 5-blade propeller systems. The anode features D1 81 mm, D2 116.2 mm, D3 156 mm, E 190 mm and K hole distance 100.6 mm. Designed as a replacement zinc anode for compatible Max Prop Whisper installations. Article code Z190R3, barcode 8720193068800.
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$ 246.40
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1-2 weeks delivery time Max Prop Z63R2 round zinc sacrificial anode designed for Classic 63 2-blade propellers. Manufactured from zinc and intended as a replacement corrosion-protection component for compatible Max Prop Classic installations. Article code Z63R2, barcode 8720193076119.
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$ 59.45
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1-2 weeks delivery time Max Prop Z63R3 round zinc sacrificial anode for Classic 63 3-blade propellers. The anode features D1 38 mm, D2 50 mm, D3 60 mm, E 63 mm and K hole distance 43.3 mm. Designed as a replacement zinc anode for compatible Max Prop Classic installations. Article code Z63R3, barcode 8720193076126.
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$ 63.78
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1-2 weeks delivery time Max Prop Z63T3 triangular zinc sacrificial anode for Classic 63 3-blade propellers. The anode features D1 38 mm, D2 54 mm, E 63 mm and K hole distance 46.8 mm. Designed as a replacement zinc anode for compatible Max Prop Classic installations. Article code Z63T3, barcode 8720193076133.
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$ 53.34
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1-2 weeks delivery time Max Prop Z70R3 round zinc sacrificial anode with D1 43 mm, D2 58 mm, D3 68 mm and K hole distance 50.2 mm. Source data lists compatibility with Max Prop Classic Round, Easy and Whisper configurations with hub type 70 / 99, while the corresponding product specification identifies it for Classic 70 3-blade propellers. Article code Z70R3, barcode 8720193076140.
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$ 63
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1-2 weeks delivery time Max Prop Z78R3 round zinc sacrificial anode for Easy 78 propeller systems, suitable for 2- and 3-blade configurations. The anode features D1 31 mm, D2 47 mm, D3 60 mm, E 78 mm and K hole distance 40.7 mm. Designed as a replacement zinc anode for compatible Max Prop Easy installations. Article code Z78R3, barcode 8720193076157.
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$ 59.45
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1-2 weeks delivery time Max Prop Z83R3 round zinc sacrificial anode with D1 45 mm, D2 65 mm, D3 80 mm and K hole distance 56.3 mm. The supplied data lists compatibility with Max Prop Classic Round, Easy and Whisper configurations with hub types 83, 110 and 115, while the corresponding product specification identifies it specifically for Classic 83 3-blade propellers. Article code Z83R3, barcode 8720193076164.
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$ 73.86
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1-2 weeks delivery time Max Prop Z83T3 triangular zinc sacrificial anode for Classic 83 3-blade propellers. The anode features D1 46 mm, D2 70 mm, E 83 mm and K hole distance 60.6 mm. Designed as a replacement zinc anode for compatible Max Prop Classic installations. Article code Z83T3, barcode 8720193076171.
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$ 73.86
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1-2 weeks delivery time Max Prop Z85R3 round zinc sacrificial anode for Easy 85 propeller systems, suitable for 2-, 3- and 4-blade configurations. The anode features D1 31 mm, D2 50 mm, D3 64 mm, E 85 mm and K hole distance 43.3 mm. Designed as a replacement zinc anode for compatible Max Prop Easy installations. Article code Z85R3, barcode 8720193076188.
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$ 59.45
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1-2 weeks delivery time Max Prop Z90R3 round zinc sacrificial anode for Easy 90 propeller systems, suitable for 3- and 4-blade configurations. The anode features D1 38 mm, D2 54 mm, D3 68 mm, E 90 mm and K hole distance 46.8 mm. Designed as a replacement zinc anode for compatible Max Prop Easy installations. Article code Z90R3, barcode 8720193076195.
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$ 59.45
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1-2 weeks delivery time Max Prop Z99R3 round zinc sacrificial anode for Easy and Whisper 99 propeller systems, suitable for 3-, 4- and 5-blade configurations. The anode features D1 43 mm, D2 58 mm, D3 68 mm and K hole distance 50.2 mm. Designed as a replacement zinc anode for compatible Max Prop Easy and Whisper installations. Article code Z99R3, barcode 8720193068817.
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$ 59.45
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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) |
|---|---|---|
| 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.