OMC 391741 Water Pump Repair Kit

( Brand: Omc ), ( Manufacturer Part Number: 391741 ), ( Part Type: Pump ), ( Country Of Origin: United States )

Review OMC New Genuine Johnson Evinrude Water Pump Repair Kit Oem

The **OMC 391741 Johnson Evinrude Water Pump Repair Kit** is a meticulously engineered, high-performance solution designed specifically for restoring and maintaining the critical cooling and propulsion systems of Johnson/Evinrude outboard motors. This premium repair kit is crafted to address common wear-and-tear issues in the water pump assembly, ensuring optimal engine performance, longevity, and reliability especially in demanding marine environments where corrosion, debris, and heavy usage can compromise critical components. The kit includes a carefully selected combination of high-grade, marine-grade materials, including a durable **impeller** (often made from reinforced nylon or composite materials for superior resistance to cavitation and abrasion), a **seal kit** featuring O-rings and gaskets engineered to withstand extreme temperatures and pressure fluctuations, and a **shaft sleeve** or **bearing assembly** designed to minimize friction and prevent premature failure. Whether tackling a leaking water pump, a worn impeller causing reduced thrust, or a seized shaft due to sediment buildup, this repair kit provides the precision parts needed to perform a professional-grade restoration. Its compatibility with a wide range of Johnson/Evinrude outboard models from older classic engines to modern high-performance units makes it an indispensable tool for both DIY enthusiasts and professional mechanics. By using this kit, boat owners can confidently restore their engine s cooling efficiency, prevent overheating, and avoid costly repairs down the line, all while ensuring seamless integration with the existing drivetrain. The inclusion of clear installation instructions and the use of OMC s trusted branding guarantee that users receive not just parts, but a complete, hassle-free solution to keep their outboard running at peak performance for countless hours on the water.

The **OMC 391741 Johnson/Evinrude Water Pump Repair Kit** is a popular aftermarket solution for repairing or replacing the water pump in older Johnson/Evinrude outboard engines. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros of the OMC 391741 Repair Kit**

1. **Cost-Effective Alternative to a Full Replacement**

The kit is significantly cheaper than purchasing a new water pump assembly, making it an attractive option for budget-conscious boat owners. A full water pump replacement can cost hundreds of dollars, whereas this kit often runs under $100.

2. **Compatibility with Older Engines**

The kit is designed to fit a wide range of Johnson/Evinrude outboards, particularly those from the 1980s to early 2000s. If your engine is no longer under warranty or is older, this kit provides a practical repair solution without requiring a full engine overhaul.

3. **Easy Installation**

The kit is relatively straightforward to install, especially for those with basic mechanical skills. It includes gaskets, seals, and mounting hardware, reducing the need for additional purchases. Many users report completing the repair in a few hours with minimal tools.

4. **Improved Reliability Over a Failed Pump**

A failing water pump can lead to overheating, reduced engine performance, or even complete engine failure. Replacing the impeller and seals with this kit can restore proper cooling and prevent further damage, extending the life of the engine.

5. **Widely Available and Supported**

OMC (Outboard Marine Corporation) is a well-known brand, and this kit is commonly stocked by marine supply stores, online retailers, and even eBay. There is also a wealth of online resources, forums (such as Evinrude forums or Marine Parts Exchange), and video tutorials to guide installation.

6. **Prevents Coolant Leaks**

Many water pump failures result from worn seals or impellers, causing coolant leaks. This kit replaces the critical components, sealing the system and preventing leaks that could contaminate the engine s coolant or damage other components.

7. **Minimal Downtime**

Since the repair is relatively simple, it can be done during routine maintenance or a minor engine service, avoiding the need for a full engine swap or professional labor costs.

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### **Cons of the OMC 391741 Repair Kit**

1. **Limited Longevity Compared to OEM Parts**

While the kit is a cost-effective fix, it may not last as long as an original equipment manufacturer (OEM) water pump. The impeller and seals in the kit are aftermarket and may wear out faster, especially if the engine is heavily used or operates in harsh conditions (e.g., saltwater, extreme temperatures).

2. **Potential Fitment Issues**

Some users report that the kit may not fit perfectly in certain engine models, particularly if the engine has been modified or if there are unique mounting configurations. It s essential to verify compatibility with your specific engine model before purchasing.

3. **Requires Some Mechanical Skill**

While the repair is manageable for DIYers, it does require familiarity with basic engine maintenance. Mismanagement during installation such as improper sealing or torque specifications could lead to leaks or further damage. Those without mechanical experience may need to consult a professional.

4. **Not a Permanent Solution for Severely Worn Engines**

If the engine s water pump housing is cracked, corroded, or otherwise damaged, the kit alone won t fix the underlying issue. In such cases, a full water pump replacement (including the housing) may be necessary, rendering the kit insufficient.

5. **Quality Variability**

As an aftermarket product, the quality can vary depending on the manufacturer and batch. Some users report receiving kits with subpar seals or impellers that fail prematurely. Purchasing from reputable sellers (e.g., Marine Parts Exchange, Amazon, or specialized marine stores) can mitigate this risk.

6. **Limited Warranty or No Warranty**

Unlike OEM parts, this kit typically comes with little to no warranty. If the kit fails shortly after installation, the buyer is responsible for the cost of replacement, which could negate the initial savings.

7. **Potential for Coolant Contamination**

If the engine s coolant system has been contaminated (e.g., with oil or debris), simply replacing the water pump may not resolve the issue. In such cases, a full flush of the cooling system may be required, adding to the overall repair time and cost.

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### **Conclusion**

The **OMC 391741 Johnson/Evinrude Water Pump Repair Kit** is a practical and cost-effective solution for repairing a failing water pump in older Johnson/Evinrude outboards. It offers significant savings over a full replacement, is relatively easy to install, and can prevent costly engine damage from overheating or coolant leaks. The kit is well-supported by a large community of users and is widely available, making it a go-to choice for DIYers.

However, the kit is not a permanent fix and may require more frequent replacements than OEM parts. It also demands some mechanical skill to install correctly, and fitment issues or quality variability can be concerns. For engines with severely damaged housings or contaminated coolant systems, additional repairs may be necessary.

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### **Recommendation**

- You have an older Johnson/Evinrude outboard with a failing water pump.

- You are comfortable with basic engine maintenance and have access to tools.

- You want a quick, affordable fix to restore cooling and prevent further engine damage.

- Your engine s water pump housing is intact, and the issue is isolated to the impeller or seals.

- Your engine s water pump housing is cracked, corroded, or otherwise damaged.

- You lack mechanical experience and are unwilling to seek professional help.

- You suspect your engine s coolant system is contaminated or requires a full flush.

- You are looking for a long-term, warranty-backed solution (in which case, an OEM water pump may be preferable).

- If your engine is still under warranty, contact Johnson/Evinrude for an OEM replacement or repair under warranty terms.

- For newer engines or those with complex issues, consult a marine mechanic to assess whether a full water pump replacement or other repairs are needed.

- If you frequently encounter water pump failures, consider upgrading to a more modern outboard with improved durability.

In summary, the OMC 391741 kit is an excellent choice for a temporary or permanent fix in the right circumstances, but it s not a one-size-fits-all solution. Always verify compatibility with your engine model and be prepared for potential follow-up repairs if the kit fails prematurely.

Details:

$9.95 Shipping Handling USPS Ground Advantage. New Genuine OMC water pump kit.

part #: 391741 prices

• $20.00-$64.99

specifications ouboaen:

• for makes: Johnson, Evinrude, Omc
• brand: Omc
• mpn: 391741
• part type: Pump
• country of origin: United States

seller ouboaen:

• city: Bradford, Rhode Island
• # reviews: 17461
• rating: 99.9%

returns ouboaen:

• policy: No Returns

shipping ouboaen:

• type: Fixed
• cost: $9.95
• carrier: USPS
• class: Standard
• service: USPS Ground Advantage
• transit: 3-8 Days

offer ouboaen:

• sold: 0
• availability: In Stock
• quantity: 1
• options: Ship-to-home
• started: April 14, 2026

general ouboaen:

• Boat Parts > Outboard Engines Components > Cowlings Housings
• condition: New

payments ouboaen:

• wallet: Paypal
• other
• credit card: Mastercard

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