SIERRA INTERNATIONAL 18-2640 Seal Lower Unit Gearcase Kit FK1203-1 87807 85-90-102-150

( Brand: Sierra International ), ( Manufacturer Part Number: 18-2640 ), ( Part Type: Seal Unit ), ( Unit Of Measurement: Ea )

Review SIERRA INTERNATIONAL Seal Kit Lower Unit Gearcase fits FORCE

The Sierra International 18-2640 Seal Lower Unit Gearcase Kit, part numbers FK1203-1, 87807, Force 85-90-102-150, is a comprehensive solution designed to address various seal and gasket needs in the lower unit gearcase of your watercraft. This kit is a must-have for boat owners looking to ensure optimal performance and efficiency of their watercraft's powertrain.

The heart of this kit is the precision-engineered seals and gaskets, specifically designed to fit the lower unit gearcase of outboard motors from various manufacturers, including Force. These seals and gaskets are manufactured using high-quality materials that offer exceptional resistance to wear, tear, and the damaging effects of water, UV radiation, and fuel.

1. Aft Seal: This seal is located at the aft end of the lower unit gearcase, preventing water from entering the gearcase.

2. Forward Seal: This seal is located at the forward end of the lower unit gearcase, sealing the area where the drive shaft enters the gearcase.

3. Gearcase Breather Seals: These seals help prevent water from entering the gearcase through the breathers, maintaining a dry environment and ensuring proper lubrication.

4. Oil Cooler Seals: These seals help maintain the integrity of the oil cooling system, preventing leaks and ensuring efficient cooling.

5. Oil Pan Gasket: This gasket seals the oil pan to the lower unit gearcase, preventing leaks and ensuring that the engine compartment remains clean and dry.

Installation of the Sierra International 18-2640 Seal Lower Unit Gearcase Kit is relatively straightforward, making it an excellent choice for DIY boat owners. The kit comes with clear and detailed instructions, ensuring that the installation process is as simple and hassle-free as possible. Additionally, the seals and gaskets are pre-lubricated, reducing the need for additional preparation and saving you time during installation.

Investing in the Sierra International 18-2640 Seal Lower Unit Gearcase Kit is an investment in the long-term performance, reliability, and efficiency of your watercraft's powertrain. By addressing common seal and gasket failure points, you can prevent costly repairs, minimize downtime, and ensure that your watercraft is always ready for the next adventure.

Pros and Cons of buying a Sierra International 18-2640 Seal Lower Unit Gearcase FK1203-1 87807 Force 85-90-102-150 Kit

The Sierra International 18-2640 Seal Lower Unit Gearcase FK1203-1 87807 Force 85-90-102-150 Kit is a replacement gearcase for various models of Force outboard motors. This kit includes several seals and other components. In this analysis, we will discuss the potential advantages and disadvantages of purchasing this product to help you make an informed decision.

1. Comprehensive Kit: This kit includes a wide range of seals and other components that may be required during the gearcase overhaul or replacement process.

2. OEM Quality: The Sierra International kit consists of original equipment manufacturer (OEM) parts, ensuring a perfect fit and optimal performance.

3. Reduces Downtime: By purchasing a complete kit, you can save time and effort as compared to ordering individual parts one by one.

4. Improved Seal Performance: New seals can help prevent leaks and water intrusion, reducing the need for frequent maintenance and potential engine damage.

5. Enhanced Reliability: Replacing old and worn-out seals with new ones can help improve the overall reliability and longevity of your outboard motor.

1. Cost: The Sierra International 18-2640 Seal Lower Unit Gearcase FK1203-1 87807 Force 85-90-102-150 Kit can be a significant investment, especially if you're only experiencing minor issues with your motor.

2. Overkill for Minor Issues: If the issue is only a small leak, it might be more cost-effective to replace the specific seal rather than purchasing an entire kit.

3. Installation Complexity: Depending on your mechanical skills and experience, installing the new gearcase and seals might be a challenging process, potentially requiring professional assistance.

The Sierra International 18-2640 Seal Lower Unit Gearcase FK1203-1 87807 Force 85-90-102-150 Kit offers several advantages, such as comprehensive coverage, OEM quality, reduced downtime, improved seal performance, and enhanced reliability. However, it comes with some disadvantages, including cost, potential overkill for minor issues, and installation complexity.

If you're experiencing severe issues with your outboard motor, such as multiple leaks or poor performance, the Sierra International kit might be a worthwhile investment. On the other hand, if you're only dealing with a minor leak, it might be more economical to replace the specific seal. Ultimately, your decision should be based on the severity and frequency of the issues you're experiencing, as well as your budget and mechanical skills.

If you're confident in your mechanical skills and the issue with your outboard motor is significant, the Sierra International 18-2640 Seal Lower Unit Gearcase FK1203-1 87807 Force 85-90-102-150 Kit could be a wise investment. However, if you're unsure or only dealing with a minor issue, consider assessing the situation carefully and potentially opting for a more targeted repair or replacement. It's always crucial to ensure that you're making the most cost-effective and efficient decision for your specific situation.

Details:

HAZARDOUS PRODUCTS HAZMAT: 1 Carriers charge extra to ship packages with products they consider hazardous, such as oils, paints, and primers. BRAND: Sierra: Force 85-150 HP Seal Kit Lower Gearcase FK1203-1 87807FEATURES ATRIBUTES: -.E. Ask a question. Manufacturer PN: 18-2640.

Below the price of item. FK1203-1.Manufacturer Part Number: 18-2640 Internal Code: 182640. Unit of Measurement: EA. Condition: New.

part #: 182640 prices

• $46.99-$98.03

specifications intengster:

• for models: Force
• brand: Sierra International
• mpn: 18-2640
• part type: Seal Unit
• unit of measurement: Ea

offer intengster:

• availability: In Stock
• sold: 0
• options: Ship-to-home
• started: January 29, 2026

general intengster:

• Boat Parts > Sterndrive Motors Components > Internal Engine Parts
• condition: New

seller intengster:

• # reviews: 75818
• city: Hollywood, Florida
• rating: 99.2%

payments intengster:

• other
• wallet: Paypal
• credit card: Diners-club

returns intengster:

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

shipping intengster:

• cost: $6.43
• service: USPS First Class, USPS Priority Mail, UPS Ground, USPS Priority Mail Express
• carrier: USPS, UPS
• type: Calculated
• class: Standard, Expedited
• transit: 5-11 Days

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