MARINE PARTS 508105 Sterndrive Stern Drive Outdrive Mounting 18-2613 Gasket Set Kit

( Brand: Marine Parts ), ( Manufacturer Part Number: 508105 ), ( Interchange With: Glm 39630 ), ( Type: Outdrive Gasket Set ), ( Warranty: 1 Year ), ( Interchanges With: Mallory 9-62605 ), ( California Prop 65 Warning: Warning This Product Can Expose You To Chemicals Which Are Known )

Review MARINE PARTS Omc Sterndrive Stern Drive Outdrive Mounting Gasket Set Kit fits COBRA

The **Marine 508105 18-2613 OMC Cobra Sterndrive Stern Drive Mounting Gasket Set Kit** is a precision-engineered replacement kit designed exclusively for Outboard Motor Corporation s (OMC) Cobra sterndrive models, specifically tailored to the 18-2613 series. This meticulously crafted gasket set ensures a secure, leak-free seal between the sterndrive s critical components, including the lower unit housing, drive shaft housing, and transom mounting surfaces, thereby maintaining optimal performance and longevity. Engineered from high-quality, durable materials, the gasket set includes a combination of reinforced elastomers and specialized sealing compounds that withstand the harsh marine environment, including exposure to saltwater, extreme temperatures, and constant vibration. The kit is built to fit seamlessly with the Cobra s proprietary mounting interfaces, offering a tight, uniform seal that prevents fluid leaks whether from oil, coolant, or hydraulic systems while also reducing noise and minimizing wear on critical seals and bearings. Ideal for both professional marine technicians and DIY enthusiasts, this gasket set simplifies the installation process with its pre-cut, accurately sized components, ensuring a clean and efficient fit during sterndrive maintenance or repairs. By maintaining the integrity of the sterndrive s internal systems, this kit helps preserve fuel efficiency, power output, and the overall reliability of the OMC Cobra, making it an essential upgrade for any boat owner seeking long-term performance and protection against costly failures.

**Pros and Cons of buying a Marine 508105 18-2613 OMC Cobra Sterndrive Stern Drive Outdrive Mounting Gasket Set Kit**

1. **Compatibility** This gasket set is specifically designed for the OMC Cobra sterndrive outdrive, ensuring a proper fit and preventing leaks. It is tailored for models like the 18-2613, reducing the risk of mismatches that could occur with generic gaskets.

2. **Seal Integrity** High-quality gaskets are essential for maintaining a watertight seal between the outdrive and the transom. A well-fitted gasket prevents water ingress, which can damage the drive mechanism and reduce performance.

3. **Ease of Installation** The kit includes all necessary gaskets and seals, simplifying the replacement process. This can save time and effort compared to sourcing individual parts separately.

4. **Prevents Corrosion** A properly sealed outdrive reduces exposure to saltwater and moisture, which are primary causes of corrosion. This extends the lifespan of the sterndrive and reduces maintenance costs over time.

5. **Performance Maintenance** A leak-free connection ensures optimal hydraulic and mechanical performance, preventing power loss or inefficient operation.

6. **Cost-Effective Solution** Replacing worn or damaged gaskets is often cheaper than repairing or replacing a compromised outdrive. This kit provides a straightforward, budget-friendly fix for common wear issues.

7. **Manufacturer-Specific Design** Being an OMC-branded part, it is engineered to meet the manufacturer s specifications, ensuring reliability and compatibility with the sterndrive s design.

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1. **Limited Use Case** This kit is **only** compatible with the specific OMC Cobra sterndrive models (e.g., 18-2613). If your outdrive is from a different brand or model, this kit will not work, potentially requiring a different (and possibly more expensive) replacement.

2. **Potential for Improper Installation** If not installed correctly, even a high-quality gasket set can fail to seal properly. Improper installation may lead to leaks, requiring rework or replacement sooner than expected.

3. **Wear and Tear Over Time** Gaskets degrade with exposure to saltwater, UV rays, and mechanical stress. While this kit provides a replacement, it may not address underlying issues like misalignment or corrosion in the mounting area.

4. **Availability and Lead Times** Depending on the region, OMC parts may not always be readily available, leading to delays in obtaining the kit. Checking stock or ordering from authorized dealers in advance is advisable.

5. **Cost Relative to Full Replacement** While this kit is a cost-effective solution, if the outdrive itself is severely damaged (e.g., cracked housing, seized components), replacing the gaskets may not be sufficient. In such cases, a full outdrive replacement could be more economical in the long run.

6. **DIY Difficulty** Replacing gaskets on an outdrive requires some mechanical skill and access to the correct tools (e.g., torque wrench, sealant, and possibly a lift or support system for the boat). Those without experience may struggle with the process.

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The **Marine 508105 18-2613 OMC Cobra Sterndrive Stern Drive Outdrive Mounting Gasket Set Kit** is a **practical and cost-effective solution** for preventing leaks and maintaining the integrity of an OMC Cobra sterndrive. Its **brand-specific design, ease of installation, and role in preventing corrosion** make it a worthwhile investment for boat owners dealing with gasket failure. However, its **limited compatibility, reliance on proper installation, and inability to address broader outdrive issues** are key limitations to consider.

If your outdrive is otherwise in good condition and the gaskets are the primary source of leakage or wear, this kit is a **strong recommendation**. However, if the outdrive shows signs of **structural damage, excessive corrosion, or mechanical failure**, a full inspection or replacement may be necessary to avoid recurring problems.

- You confirm it matches your **OMC Cobra sterndrive model** (e.g., 18-2613).

- Your outdrive is otherwise functional, and leaks are the main issue.

- You are comfortable with **basic DIY maintenance** or have access to a marine mechanic.

- Your outdrive is from a **different brand or model**.

- The outdrive has **visible cracks, rust, or mechanical failures** beyond gasket wear.

- You lack the **tools, time, or confidence** to install it correctly.

For long-term reliability, pair this replacement with **regular maintenance**, including **cleaning, lubrication, and inspections** of the outdrive and transom area.

Details:

18-2613 508105 OMC Cobra Sterndrive Stern Drive Outdrive Mounting Gasket Set Kit.

part #: 508105 prices

• $13.20-$13.30

specifications ouboaen:

• for models: Cobra
• for makes: Omc
• brand: Marine Parts
• mpn: 508105
• interchange with: Glm 39630
• type: Outdrive Gasket Set
• warranty: 1 Year
• interchanges with: Mallory 9-62605
• california prop 65 warning: Warning This Product Can Expose You To Chemicals Which Are Known

payments ouboaen:

• other
• wallet: Apple-pay
• credit card: Mastercard

seller ouboaen:

• city: Burlington, Wisconsin
• # reviews: 1142
• rating: 98.1%

returns ouboaen:

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

general ouboaen:

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

shipping ouboaen:

• carrier: USPS
• cost: $7.46
• transit: 3-8 Days
• class: Standard
• service: USPS Ground Advantage
• type: Calculated

offer ouboaen:

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

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