Quicksilver 79831A1 Lower Unit Gear Housing Seal Kit for Mercury Outboard Motors

The Quicksilver 79831A1 Gear Housing Seal Kit is a genuine Mercury Marine OEM replacement seal kit designed for comprehensive lower unit maintenance on Mercury and Mariner outboard motors. This complete seal kit provides all the critical seals needed to rebuild and service the lower gearcase housing, ensuring proper lubrication retention and preventing water intrusion into the lower unit.

Key Features:

• Genuine Mercury Marine OEM quality seal kit (Part Number 26-79831A1)
• Complete seal package for lower unit gearcase service and rebuild
• Precision-engineered seals designed to OEM specifications
• Includes propeller shaft seals and housing seals for comprehensive coverage
• Compatible with multiple Mercury/Mariner outboard configurations

Applications:

• Mercury/Mariner 35-40 HP 2-cylinder outboards (1984-1997)
• Mercury/Mariner 40-50 HP 4-cylinder outboards (1989-1997)
• Mercury/Mariner 45-50 HP 4-cylinder outboards (1980-1990)
• Mercury/Mariner 50-70 HP 3-cylinder outboards (1976-1990)

This seal kit is essential for proper lower unit maintenance and rebuild procedures. Using genuine Quicksilver seals ensures proper fit, durability, and reliable performance. Cross-reference numbers include Sierra 18-2654 and Force 5000309. Always verify your engine's serial number and configuration before ordering to ensure proper fitment, as Mercury/Mariner motors are identified by serial number ranges rather than model year alone.