26-85090A2 18-2624 Gearcase Seal Kit for Mercury Mariner Force 8-25HP Lower Unit

Product Overview

This Gearcase Seal Kit replaces worn seals in Mercury, Mariner, and Force outboard lower units from 8 to 25 horsepower. It prevents gear oil leaks and water intrusion, extending the life of your lower unit. This kit is a direct replacement for OEM part numbers 26-85090A2 and 18-2624.

Key Features & Performance

• Includes all seals needed for a complete lower unit gearcase overhaul
• Manufactured from high-quality rubber and nitrile compounds for oil and water resistance
• Matches OEM specifications for precise fitment
• Replaces both drive shaft and propeller shaft seals
• Helps maintain proper gearcase pressure and lubrication
• Cost-effective alternative to buying individual seals

Fitment & Compatibility

• Mercury outboards 8HP - 25HP (select models)
• Mariner outboards 8HP - 25HP
• Force outboards 8HP - 25HP
• Compatible with OEM part numbers 26-85090A2 and 18-2624

Common Uses

• Rebuilding lower unit gearcases on small Mercury/Mariner/Force outboards
• Replacing leaking seals after gearcase removal or water intrusion
• Performing routine maintenance during winterization or after storage

Technical Specifications

• Part Number(s): 26-85090A2, 18-2624
• Brand: Aftermarket (OEM replacement)
• Material: Rubber, Nitrile

Frequently Asked Questions

Q: Will this kit fit a 15HP Mercury 2-stroke from 1990? A: This kit is designed for Mercury, Mariner, and Force outboards 8-25HP; check your lower unit model and compare with OEM part numbers 26-85090A2 / 18-2624 for exact compatibility.

Q: Are installation instructions included? A: The kit does not include instructions, but standard lower unit seal replacement procedures apply. We recommend a service manual for your specific engine.

Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.