EVINRUDE 5005549 Gearcase 150-250 Assy. P/n

( Manufacturer Part Number: 5005549 )

Review EVINRUDE 150-250 Gearcase Assy. P/n fits G1 M1

The **Evinrude 5005549 G1 150-250 HP M1 Gearcase** is a high-performance, precision-engineered transmission designed exclusively for Evinrude E-TEC and Johnson E-TEC outboard motors within the 150 to 250 horsepower range. This gearcase represents the pinnacle of marine propulsion technology, combining durability, efficiency, and cutting-edge engineering to deliver unmatched power and control for both recreational and performance-oriented boating applications. Built to withstand the demands of heavy-duty use, the **M1 series** features a robust, cast-aluminum housing reinforced with high-strength alloys to ensure resistance against corrosion, impact, and the relentless forces of saltwater exposure. The gearcase incorporates a **direct-drive shaft** system, eliminating the need for a separate driveshaft and reducing mechanical complexity while maximizing power transfer to the propeller. Its **sealed and lubricated internal components** are engineered to minimize wear and extend operational life, even under the most extreme conditions, such as high-speed planing or towing heavy loads.

One of the standout features of this gearcase is its **adjustable trim and tilt mechanism**, which allows for precise tuning of the motor s angle relative to the water, optimizing performance for various load conditions, speeds, and water types whether it s calm lakes, rough seas, or high-speed chops. The **M1 model** also incorporates a **quick-release shaft collar**, simplifying maintenance and making it easier to swap out propellers or inspect the shaft for wear without extensive disassembly. For added convenience, the gearcase is equipped with a **built-in oil cooler**, ensuring that the transmission fluid remains at optimal operating temperatures, which is critical for maintaining gearcase longevity and preventing overheating during prolonged use. The **Evinrude G1 series** is also designed with **reduced vibration and noise**, thanks to advanced balancing techniques and high-quality bearings, providing a smoother, more comfortable ride for passengers while reducing fatigue on the motor itself.

This gearcase is fully compatible with Evinrude s **E-TEC electronic fuel injection system**, which enhances throttle response, fuel efficiency, and emissions control, making it an ideal choice for boaters who prioritize both performance and environmental responsibility. The **M1 series** is also engineered for easy installation, featuring a **universal mounting system** that ensures a secure and stable fit on compatible Evinrude and Johnson outboards, regardless of hull type or size. Whether used in a high-speed wakeboard boat, a deep-V performance cruiser, or a versatile fishing vessel, the **5005549 G1 150-250 HP gearcase** delivers the power, reliability, and adaptability needed to conquer any body of water. Built to meet or exceed industry standards for strength and performance, this transmission is a testament to Evinrude s commitment to innovation and excellence in marine propulsion.

### **Pros and Cons of buying a Evinrude 5005549 G1 150-250 HP M1 Gearcase**

1. **Compatibility with Evinrude E-TEC and G2 Engines** This gearcase is designed to work with Evinrude s newer E-TEC and G2 outboard motors, ensuring better performance and reliability with modern engine technology.

2. **Wide Power Range (150-250 HP)** The gearcase accommodates a broad range of engine sizes, making it versatile for different boat types, from mid-sized cruisers to performance boats.

3. **Durable Construction** Evinrude gearcases are built with high-quality materials, including reinforced casings and corrosion-resistant coatings, which extend the gearcase s lifespan in saltwater and freshwater environments.

4. **Ease of Installation** The M1 series is designed for straightforward installation, often requiring minimal modifications to existing transoms, which can save time and labor costs.

5. **Compatibility with Evinrude s Propeller Systems** Works seamlessly with Evinrude s proprietary propellers, optimizing thrust and efficiency for better handling and fuel economy.

6. **Warranty Coverage** Evinrude offers standard warranties on gearcases, providing some peace of mind against manufacturing defects.

7. **Aftermarket Support** As a widely used component, replacement parts, repairs, and tuning services are readily available from dealerships and marine mechanics.

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1. **Age of the Design (M1 Series)** The M1 gearcase is an older model compared to Evinrude s newer **G2** and **E-TEC** gearcase designs. While it still functions well, newer models may offer improved efficiency, quieter operation, and better fuel savings.

2. **Potential for Wear Over Time** Like any mechanical component, prolonged use can lead to wear in gears, bearings, or seals, which may require eventual replacement or maintenance.

3. **Limited Fuel Efficiency Compared to Newer Models** Older gearcase designs may not be as optimized for fuel efficiency as the latest Evinrude gearcases, which incorporate advanced drivetrain technologies.

4. **Compatibility Issues with Non-Evinrude Engines** While it works with Evinrude motors, pairing it with non-Evinrude engines (e.g., Mercury, Yamaha) may require additional adapters or modifications, potentially voiding warranties.

5. **Higher Upfront Cost for Replacement Parts** If the gearcase fails, replacement parts (especially for older models) can be more expensive than those for newer Evinrude gearcases.

6. **Potential for Noise and Vibration** Older gearcase designs may produce slightly more noise and vibration compared to newer, more refined models with improved balancing and damping.

7. **Limited Smart Features** Unlike newer Evinrude gearcases, this model does not integrate with advanced diagnostics or smart engine management systems.

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The **Evinrude 5005549 G1 150-250 HP M1 Gearcase** remains a solid, reliable choice for boat owners using Evinrude E-TEC or G2 engines, especially if upgrading from an older gearcase. Its durability, compatibility, and ease of installation make it a practical option for many applications. However, if fuel efficiency, noise reduction, or the latest drivetrain technology are priorities, a newer **G2 or E-TEC gearcase** may be a better long-term investment.

- **Buy if:** You need a reliable, mid-range gearcase for an Evinrude-powered boat, have a budget-conscious approach, and don t require the latest efficiency upgrades.

- **Consider an alternative if:** You want better fuel economy, quieter operation, or plan to keep the boat long-term then a newer **Evinrude G2 or E-TEC gearcase** (e.g., 5005549 G2 series) may be worth the extra cost.

- **Maintenance Tip:** Regularly check for wear, ensure proper lubrication, and follow Evinrude s maintenance schedule to maximize the gearcase s lifespan.

For most users, this gearcase provides a good balance of performance and value, but weigh your boat s specific needs before deciding.

Details:

Recommend replacing upper driveshaft seals p/n 329923 and 329922 not supplied. Gear case does not come with drive shaft or shift and is shipped no gear oil. This gearcase came off model # E225DPXSDR and fit2150-250 Evinrude E-etc that used the M1 style. Gearcase came off of none running engine but shifts manually F-N-R as should and pressure vacuum tested OK.

part #: 5005549 prices

• $550.00-$1000.00

specifications ouboaen:

• for models: G1, M1
• for makes: Evinrude
• mpn: 5005549

returns ouboaen:

• policy: No Returns

offer ouboaen:

• best offers: True
• sold: 0
• availability: In Stock
• started: February 11, 2026
• options: Ship-to-home
• quantity: 1

general ouboaen:

• condition: Used
• Boat Parts > Outboard Engines Components > Other

seller ouboaen:

• city: Astoria, Oregon
• # reviews: 39
• rating: 100.0%

shipping ouboaen:

• service: UPS Ground Saver
• type: Calculated
• cost: $173.05
• carrier: UPS
• class: Economy
• transit: 6-13 Days

payments ouboaen:

• credit card: Discover
• other
• wallet: Paypal

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