OMC Lower Cowl Engine Cover Outboard 745419132460 0434172 40 50 65

( Brand: Omc ), ( Manufacturer Part Number: 434172 ), ( Part Type: Cowl Cover Hp Engine ), ( Color: Color May Vary ), ( UPC: 745419132460 )

Review OMC Lower Cowl Engine Cover Evinrude Johnson 40 50 60 65 70 Hp Outboard fits 1986–2001

The **OMC 434172 (0434172) Lower Cowl Engine Cover** is a precision-engineered replacement part designed specifically for Evinrude and Johnson outboard motors in the 40 to 70 horsepower range, including the 40 HP, 50 HP, 60 HP, 65 HP, and 70 HP models. Crafted from high-quality, durable materials, this lower cowl cover is built to withstand the rigors of marine environments, ensuring long-lasting performance and protection for your engine. The cover features a sleek, aerodynamic design that not only enhances the aesthetic appeal of your outboard but also optimizes airflow and cooling efficiency, helping to maintain optimal engine temperature during operation. Engineered to fit seamlessly with the upper cowl, this part ensures a secure and watertight seal, preventing water ingress that could lead to corrosion or operational issues. Its robust construction also provides added protection against debris, saltwater corrosion, and the elements, extending the lifespan of your outboard motor. Whether you're preparing for a day on the water or performing routine maintenance, this lower cowl cover is a reliable and essential component for preserving the integrity and functionality of your Evinrude or Johnson outboard.

### **Pros and Cons of buying a OMC 434172 / 0434172 Lower Cowl Engine Cover for Evinrude/Johnson 40-70 HP Outboards**

1. **Compatibility** This part is designed specifically for Evinrude/Johnson outboards in the 40 70 HP range, ensuring a proper fit without modifications.

2. **Durability** Made from high-quality materials, it is built to withstand exposure to water, UV rays, and mechanical stress, reducing long-term wear.

3. **Aesthetic Improvement** Replacing a damaged or worn cover restores the outboard s appearance, maintaining its resale value.

4. **Protection** The lower cowl cover shields internal components from debris, water intrusion, and corrosion, extending the engine s lifespan.

5. **Easy Installation** Designed for straightforward replacement, requiring minimal tools and time, even for DIYers.

6. **OEM Quality** As an Original Equipment Manufacturer (OMC) part, it meets the same standards as factory replacements, ensuring reliability.

7. **Prevents Rust & Corrosion** A well-fitted cover helps seal the engine bay, reducing moisture buildup that leads to rust and electrical issues.

8. **Noise Reduction** A properly installed cover helps dampen engine noise, improving comfort for the operator.

1. **Cost** While not excessively expensive, it is a specialized part, and prices may be higher than generic aftermarket alternatives.

2. **Potential Fit Issues** If the outboard has been modified or has unique wear patterns, the cover may not align perfectly, requiring adjustments.

3. **Replacement Necessity** If the existing cover is only slightly damaged, some may opt to repair it instead of replacing, saving money.

4. **Limited Availability** Since it s an older model part, finding it in stock may require ordering from specialty marine suppliers.

5. **Installation Challenges** If the outboard has significant corrosion or misalignment in the mounting points, installation could be more difficult than expected.

6. **Warranty Considerations** If the outboard is under warranty, improper installation (e.g., overtightening bolts) could void coverage.

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### **Conclusion**

The **OMC 434172 / 0434172 lower cowl engine cover** is a **highly recommended replacement** for Evinrude/Johnson 40 70 HP outboards when the existing cover is cracked, corroded, or missing. Its **durability, OEM quality, and protective benefits** far outweigh the minor drawbacks, such as cost and potential fit concerns. For most boat owners, the **investment is justified** in terms of **long-term engine protection, performance, and resale value**.

If the cover is only lightly damaged, **repairing it with marine-grade epoxy or a flexible sealant** could be a cost-effective alternative. However, if it is **severely compromised**, replacement is the best choice to prevent **water intrusion, electrical shorts, and further engine damage**.

- **Buy the OMC part** if you need a **direct factory replacement** for reliability and longevity.

- **Check for aftermarket alternatives** (e.g., from brands like **Mercury Marine or Sea-Doo**) if cost is a concern, though OMC remains the safest choice for exact fitment.

- **Inspect the mounting area** before installation to ensure no corrosion or damage that could interfere with a proper seal.

- **Follow the manufacturer s installation instructions** carefully to avoid voiding warranties or causing leaks.

For most users, **this is a straightforward, worthwhile upgrade** that enhances both the **functionality and appearance** of the outboard.

Details:

Free shipping.

part #: 434172 prices

• $39.95-$59.99

specifications ouboaen:

• for makes: Evinrude, Johnson, Omc
• for years: 1986-2001
• brand: Omc
• mpn: 434172
• part type: Cowl Cover Hp Engine
• color: Color May Vary
• upc: 745419132460

seller ouboaen:

• # reviews: 994
• city: Eagle, Wisconsin
• rating: 99.1%

offer ouboaen:

• options: Ship-to-home
• availability: In Stock
• best offers: True
• sold: 0
• quantity: 1
• started: June 12, 2026

returns ouboaen:

• policy: No Returns

payments ouboaen:

• wallet: Apple-pay
• credit card: Diners-club
• other

general ouboaen:

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

shipping ouboaen:

• cost: $0.00
• class: Standard
• service: USPS Ground Advantage
• type: Calculated
• transit: 5-12 Days
• carrier: USPS

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