An outboard engine cover is a protective accessory designed to shield your boat's engine from harsh marine conditions. Made from durable and breathable materials like acrylic, these covers prevent damage from UV rays, moisture, and debris, ensuring year-round protection. With options for popular brands these covers fit various engine sizes, from V6 to V12, and are available for both 4-stroke and ProXS models. Featuring stylish designs and vents for airflow, they help maintain your engine’s performance while adding a sleek look to your boat.
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Oceansouth Yamaha V6 4T 4.2L Motor Cover F225F/F250D/F300B HP Leg 25" 2010-2020 - Osculati 46.541.02
1-2 weeks delivery time The Osculati 46.541.02 – Oceansouth Yamaha V6 4T 4.2L Motor Cover is custom-shaped for Yamaha 4.2 L V6 four-stroke outboards F225F, F250D, and F300B with a 25" leg, model years 2010–2020. Made of ATLAS 340 g/m² marine-grade fabric, the cover is waterproof, breathable, and UV-resistant; intended for use when the engine is off and ideal for open-area storage to protect against sun, rain, dust, and salt spray.
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$ 91,41
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1-2 weeks delivery time The Osculati 46.541.03 – Oceansouth Yamaha 4-Cylinder 4T 2.8L Motor Cover is tailored for Yamaha four-stroke 4-cylinder 2.8 L outboards F150, F175, and F200 with a 20" leg, manufactured from 2015 onwards. Made from ATLAS 340 g/m² marine-grade fabric, it is waterproof, breathable, and UV resistant. Intended for use when the engine is off, it offers reliable protection during open-area storage against sun, rain, dust, and salt spray.
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$ 77,63
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1-2 weeks delivery time The Osculati 46.541.04 – Oceansouth Yamaha 4-Cylinders 4T 2.7L Motor Cover is custom-shaped for Yamaha four-stroke 4-cylinder 2.7 L outboards F150D, manufactured from 2013 onwards. Made from ATLAS 340 g/m² marine-grade fabric, it is waterproof, breathable, and UV resistant. Intended for use when the engine is off, it provides reliable protection during open-area storage from sun, rain, dust, and salt spray.
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$ 74,08
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1-2 weeks delivery time The Osculati 46.541.05 – Oceansouth Yamaha 4-Cylinders 4T 1.8L Motor Cover is tailored for Yamaha four-stroke 4-cylinder 1.8 L outboards rated 115 HP and 130 HP with a 20" leg, manufactured from 2014 onwards. Made from ATLAS 340 g/m² marine-grade fabric, it is waterproof, breathable, and UV resistant. Designed for use when the engine is off, it offers reliable open-area storage protection against sun, rain, dust, and salt spray.
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$ 66,53
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1-2 weeks delivery time The Osculati 46.541.06 – Oceansouth Yamaha 4-Cylinders 4T 996cc Motor Cover is custom-shaped for Yamaha four-stroke 4-cylinder 996 cc outboards F50, F60, and F70 with a 20" leg, manufactured from 2010 onwards. Made from ATLAS 340 g/m² marine-grade fabric, it is waterproof, breathable, and UV resistant. Designed for use when the engine is off, it ensures durable open-area storage protection against sun, rain, dust, and salt spray.
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$ 48,50
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1-2 weeks delivery time Specifically tailored for Yamaha 3-cylinder 4-stroke 747cc outboard engines (F30/F40 HP, 2009 and newer, 20" shaft), this Oceansouth motor cover by Osculati (item 46.541.07) ensures high-level protection during storage. Made from ATLAS marine-grade fabric (340 g/m²), it is fully waterproof, UV-resistant, and breathable, making it ideal for long-term outdoor exposure while the engine is off.
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$ 45,27
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1-2 weeks delivery time Purpose-built for Yamaha 2-cylinder 4-stroke 498cc outboard engines (F25D HP, from 2010 onwards) with 20" shaft length, the Oceansouth cover (Osculati 46.541.08) provides optimal protection during non-operational periods. Constructed from high-durability ATLAS fabric (340 g/m²), it is waterproof, UV-resistant, and breathable, making it ideal for outdoor engine storage.
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$ 43,14
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1-2 weeks delivery time Designed for Yamaha V6 4-stroke 4.2L outboard engines (F225F / F250D / F300B, model years 2010–2020, 25" shaft), the Oceansouth ventilated motor cover (Osculati 46.541.12) offers full protection both during navigation and while stationary. Made from ATLAS 340 g/m² marine-grade fabric, it is waterproof, UV-resistant, and breathable. The integrated ventilation system allows safe engine operation while the cover is on, making it ideal for all-weather use.
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$ 157,12
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1-2 weeks delivery time Designed for Yamaha 4-cylinder 4-stroke 2.8L outboard engines (F150 / F175 / F200 HP, 2015 and newer, 20" shaft), the ventilated Oceansouth motor cover (Osculati 46.541.13) provides robust protection during both storage and navigation. Made from ATLAS 340 g/m² fabric, it is waterproof, UV-resistant, and breathable. The integrated ventilation system ensures engine performance is not compromised, making it ideal for on-water use in demanding marine conditions.
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$ 133,48
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1-2 weeks delivery time Designed for Yamaha 4-cylinder 4-stroke 1.8L outboard engines (115 / 130 HP, model year 2014 and newer, 20" shaft), the ventilated Oceansouth motor cover (Osculati 46.541.15) ensures all-weather protection both during storage and navigation. Made of durable ATLAS marine-grade fabric (340 g/m²), this waterproof, UV-resistant, and breathable cover is engineered for a secure, model-specific fit with integrated ventilation panels for use while the engine is running.
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$ 114,38
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1-2 weeks delivery time Custom-made for Yamaha 4-cylinder 4-stroke 996cc outboard engines (F50 / F60 / F70 HP, from 2010 onwards, with 20" shaft), the Oceansouth ventilated motor cover (Osculati 46.541.16) delivers robust protection in both static and active use. Crafted from ATLAS 340 g/m² marine-grade fabric, it is waterproof, UV-resistant, and breathable. Its ventilation system allows engine operation while covered, making it suitable for real-world on-water usage and long-term open area storage.
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$ 83,39
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1-2 weeks delivery time Specifically designed for Yamaha 3-cylinder 4-stroke 747cc outboard engines (F30/F40 HP, 2009 and newer, 20" shaft), the Oceansouth ventilated motor cover (Osculati 46.541.17) combines tailored fit with durable protection. Made from ATLAS 340 g/m² marine-grade fabric, it is waterproof, UV-resistant, and breathable. Its ventilated construction enables safe use during navigation, making it ideal for extended outdoor exposure in operational conditions.
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$ 77,83
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1-2 weeks delivery time Specifically tailored for Yamaha 2-cylinder 4-stroke 498cc outboards (F25D HP, 2010 and newer, 20" shaft), the Oceansouth ventilated motor cover (Osculati 46.541.18) combines precise fit with high-performance protection. Constructed from ATLAS marine-grade fabric (340 g/m²), it is waterproof, UV-resistant, and breathable. Its ventilated design allows use even during navigation, making it ideal for all-season outdoor engine protection.
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$ 74,12
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1-2 weeks delivery time Designed for Yamaha 2-cylinder 4-stroke 432cc outboard engines (F25C / F25G / F15B / F20C HP, from 2017 and 2023 onwards, with 15" shaft), the ventilated Oceansouth cover (Osculati 46.541.19) offers full protection both during storage and navigation. Manufactured from ATLAS marine-grade fabric (340 g/m²), it is waterproof, UV-resistant, and breathable. Its custom fit and built-in ventilation make it ideal for real-world operation in harsh marine environments.
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$ 74,12
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1-2 weeks delivery time Designed for Yamaha 4-cylinder 4-stroke 1.8L outboard engines, including F75D, F90C, F100F, and VMAX90 HP models (from 2017 onward, 20" shaft), the Oceansouth ventilated cover (Osculati 46.541.20) provides full protection during storage and operation. Crafted from ATLAS 340 g/m² marine-grade polyester, it is waterproof, breathable, and UV-resistant. With its precision fit and built-in ventilation, this cover ensures secure protection without removing it during navigation.
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$ 109,64
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1-2 weeks delivery time Tailored for Yamaha 2-cylinder 4-stroke 212cc outboard engines (F8F/F9.9J HP, from 2013 onward, 15" shaft), the ventilated Oceansouth motor cover (Osculati 46.541.21) is made from ATLAS 340 g/m² marine-grade polyester. Waterproof, UV-resistant, and breathable, it protects the engine in all weather conditions. The ventilated design allows use while underway, making it ideal for continuous outdoor exposure and safe operation with the cover on.
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$ 80,53
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1-2 weeks delivery time Optimized for Yamaha 1-cylinder 4-stroke 139cc outboard engines (F4B, F5A, F6C HP, from 2010 onwards, 15" shaft), the Oceansouth ventilated motor cover (Osculati 46.541.22) delivers effective protection in both storage and active operation. Made of ATLAS 340 g/m² marine-grade fabric, it is waterproof, UV-resistant, and breathable. The integrated ventilation system allows safe engine operation while the cover remains in place.
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$ 76,34
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1-2 weeks delivery time Engineered for Yamaha 1-cylinder 4-stroke 72cc outboard motors (F2.5B HP, from 2015 onward, 15" shaft), the ventilated Oceansouth cover (Osculati 46.541.23) offers dependable protection during both storage and operation. Constructed from ATLAS 340 g/m² marine-grade polyester, the cover is waterproof, UV-resistant, and breathable. Integrated ventilation enables safe engine operation with the cover in place, ideal for harsh outdoor marine environments.
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$ 72,16
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1-2 weeks delivery time Tailored for Yamaha 2-cylinder 4-stroke 362cc outboards (F15C / F20B HP, from 2007 onward, 15" shaft), the ventilated Oceansouth cover (Osculati 46.541.30) is built to deliver full protection during both storage and operation. Constructed from ATLAS 340 g/m² marine-grade polyester, it is waterproof, UV-resistant, and breathable. Ventilation ports allow safe engine use while covered, ensuring continuous protection in harsh marine environments.
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$ 72,16
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1-2 weeks delivery time Designed for Yamaha XTO Offshore V8 5.6L outboards (375 / 425 / 450 HP, 25" shaft, from 2018 onward), the ventilated Oceansouth motor cover (Osculati 46.541.35) offers maximum protection during both storage and navigation. Constructed from ATLAS 340 g/m² marine-grade polyester, this waterproof, UV-resistant, and breathable cover is engineered for demanding offshore conditions. The integrated ventilation system ensures operational safety without the need to remove the cover during engine use.
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$ 279,50
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How does a breathable outboard engine cover protect your motor year-round from harsh marine conditions?
A breathable outboard engine cover protects your motor year-round by allowing air to circulate, preventing moisture buildup and mildew, which can damage the engine over time. Made from durable materials like marine-grade polyester or canvas, these covers are designed to fit snugly over the cowling, shielding it from harmful environmental conditions like UV rays and saltwater. In addition to protection, modern and stylish designs, such as grey camo, can add a sleek look to your boat while ensuring your outboard motor remains in top condition.
For a selection of premium covers, check out our Evinrude Boat Motor Covers, designed to safeguard your engine from the elements.
What role does proper cover fit play in ensuring maximum protection for outboard motors?
Proper cover fit is essential in ensuring maximum protection for outboard motors by providing a snug barrier that shields the engine from harmful elements like UV rays, moisture, and debris. Whether using a custom-made motor hood cover or a marine canvas boat cover, having the dimensions that closely match your particular model prevents gaps that could expose the motor to potential damage. A well-fitted cover, like those made from marine-grade polyester or with grey camo designs, offers year-round protection while adding style to your boat and ensuring your outboard motor looks and performs at its best.
For a perfect fit and superior protection, explore our Mercury Outboard Motor Covers, designed for durability and all-weather defense.
What are the benefits of using marine-grade polyester in boat engine covers for UV and moisture protection?
Marine grade polyester in boat engine covers offers superior UV and moisture protection, ensuring your outboard motor is shielded year-round from harsh marine conditions. The durable cover material helps prevent fading and water damage while maintaining breathability, making it both functional and stylish. Whether it's a custom-made or universal cover, this top-of-the-line protection adds a touch of style to your outboard boat while keeping it in the best condition possible.
For Yamaha owners, explore our collection of Yamaha Outboard Motor Covers for tailored fit and long-lasting performance.