JOHNSON EVINRUDE OMC 0346007 Gasket Cylinder Head 745419277628

( Brand: Johnson Evinrude Omc ), ( Manufacturer Part Number: 0346007 ), ( Part Type: Gasket Cylinder Head ), ( Warranty: 30 Day ), ( UPC: 745419277628 )

Review JOHNSON EVINRUDE OMC Oem Gasket Cylinder Head

The **Johnson Evinrude OMC Part #0346007 (346007) Cylinder Head Gasket** is a precision-engineered sealing component designed exclusively for high-performance outboard motors within the Evinrude E-TEC and E-TEC HP series, ensuring optimal engine performance and longevity. Crafted from high-quality, temperature-resistant materials, this gasket is engineered to maintain a perfect seal between the cylinder head and engine block, preventing coolant and oil leaks while withstanding the intense heat and pressure generated during operation. Its robust construction minimizes the risk of warping or degradation over time, even under demanding conditions such as high RPMs, heavy loads, or extended runtime. This gasket is a critical replacement part for engines experiencing coolant or oil leaks, compression loss, or overheating issues, helping to restore factory-level efficiency and reliability. Whether used in recreational boats, performance fishing vessels, or professional marine applications, the **0346007 gasket** plays a vital role in preserving engine integrity, reducing maintenance downtime, and extending the lifespan of the Evinrude E-TEC or E-TEC HP outboard motor. Proper installation, using the correct torque specifications and gasket sealant, is essential to ensure a leak-free fit and optimal engine function.

**Pros and Cons of buying a Johnson Evinrude OMC 0346007 (346007) Cylinder Head Gasket**

1. **Compatibility and Fit:** This gasket is specifically designed for the Johnson/Evinrude OMC 346 series engines, ensuring a proper fit and sealing performance. Using an OEM or high-quality aftermarket part reduces the risk of leaks or improper installation.

2. **Reliability:** Johnson/Evinrude engines are widely used in marine applications, and OEM parts like this gasket are engineered to meet the manufacturer s specifications. This minimizes the risk of premature failure due to poor material quality or incorrect dimensions.

3. **Ease of Installation:** The gasket is a straightforward replacement part, typically requiring only basic tools (socket wrench, torque wrench, gasket scraper, and sealant if needed). Many marine mechanics and DIYers can install it without specialized equipment.

4. **Cost-Effective Repair:** Replacing a faulty cylinder head gasket is often cheaper than repairing or replacing an entire engine block or head. This part is relatively affordable compared to labor-intensive engine overhauls.

5. **Prevents Engine Damage:** A failing cylinder head gasket can lead to catastrophic issues like coolant mixing with oil, compression loss, or overheating. Replacing it proactively avoids costly repairs down the line.

6. **Availability:** As an OMC part, it is widely available through marine dealers, online retailers (e.g., Amazon, eBay, specialty marine stores), and catalogs. Spare parts for Johnson/Evinrude engines are generally easy to source.

7. **Durability:** High-quality gaskets (especially OEM or reputable aftermarket brands) are made from materials like fiber or composite layers that resist warping, cracking, or degradation over time, especially when properly installed and sealed.

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1. **Potential for Counterfeit Parts:** Some aftermarket or third-party sellers may offer fake or low-quality gaskets that fail prematurely. Buying from untrusted sources increases the risk of receiving a substandard part.

2. **Installation Challenges:** If the engine block or head has warped or damaged sealing surfaces, the new gasket may not create a perfect seal, leading to leaks. This requires careful inspection and possibly machining the surfaces before installation.

3. **Torque Sensitivity:** Over-tightening or under-tightening the head bolts can damage the gasket or the engine. Improper torque can lead to leaks or even cracked cylinder heads. A torque wrench and adherence to the manufacturer s specifications are critical.

4. **Compatibility with Modified Engines:** If the engine has been modified (e.g., cylinder head swaps, porting, or custom machining), the stock gasket may not fit or function correctly. Custom gaskets may be needed in such cases.

5. **Sealant Requirements:** Some installations require a high-temperature sealant (e.g., Permatex 3000 or equivalent) to ensure a leak-proof seal. Failure to use the correct sealant can result in leaks, especially around bolt holes.

6. **Labor Time:** While the part itself is simple, the process of removing the cylinder head, inspecting surfaces, and reinstalling it properly can take several hours, especially for inexperienced DIYers. This may require blocking off time for the repair.

7. **Risk of Residual Damage:** If the gasket was damaged due to overheating or coolant contamination, the underlying issue (e.g., a failing water pump, thermostat, or head gasket) may persist. Addressing the root cause is essential to prevent recurrence.

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The Johnson Evinrude OMC 0346007 cylinder head gasket is a practical and cost-effective solution for repairing leaks or replacing a worn gasket in a 346-series engine. Its compatibility, reliability, and ease of installation make it a sound choice for both professional mechanics and DIY enthusiasts. However, the success of the repair depends on sourcing a genuine part, ensuring proper installation techniques (including correct torque and sealant use), and addressing any underlying engine issues.

For most users, this part is a **recommended purchase** when replacing a faulty gasket, provided they follow best practices during installation. If the engine has been heavily modified or shows signs of broader issues (e.g., warped heads, coolant/oil contamination), consulting a marine mechanic may be advisable to assess whether additional repairs are needed.

Buy the **Johnson Evinrude OMC 0346007 gasket** from a trusted dealer or reputable online retailer to ensure authenticity. Pair it with high-quality sealant and a torque wrench, and follow the manufacturer s guidelines for installation. If unsure about the condition of the engine block or head, have a professional inspect it beforehand. This approach maximizes the likelihood of a successful, long-lasting repair.

Details:

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part #: 0346007 prices

• $34.95-$36.95

specifications ouboaen:

• for makes: Johnson
• brand: Johnson Evinrude Omc
• mpn: 0346007
• part type: Gasket Cylinder Head
• warranty: 30 Day
• upc: 745419277628

general ouboaen:

• condition: New other see details
• Boat Parts > Outboard Engines Components > Other

returns ouboaen:

• paid by: Seller
• time: 30 Days
• policy: Returns Accepted

shipping ouboaen:

• transit: 4-6 Days
• service: USPS Ground Advantage, USPS Priority Mail
• class: Standard, Expedited
• carrier: USPS
• type: Calculated
• cost: $10.95

offer ouboaen:

• best offers: True
• sold: 0
• started: April 26, 2026
• availability: In Stock
• options: Ship-to-home
• quantity: 2

payments ouboaen:

• other
• wallet: Google-pay
• credit card: Discover

seller ouboaen:

• city: Plainwell, Michigan
• rating: 99.9%
• # reviews: 30763

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