Quicksilver 816575A4 Gear Housing Seal Kit for Mercury 200-250HP Outboards

The Quicksilver 816575A4 Gear Housing Seal Kit is a genuine OEM replacement seal kit designed for Mercury outboard motors ranging from 200 to 250 horsepower. This comprehensive kit contains all necessary seals, O-rings, and gaskets required to properly reseal the lower unit gear housing on compatible Mercury and Mariner outboard engines.

Key Features:

• Genuine Mercury Marine OEM part for guaranteed fit and performance
• Complete seal kit includes all necessary components for gear housing service
• Designed for Mercury 200HP, 225HP, and 250HP EFI and Optimax DFI models
• Compatible with models featuring C-3 casting designation
• Helps prevent water intrusion and gear oil leaks in the lower unit
• Essential for routine lower unit maintenance and rebuilds

Applications: This kit fits Mercury V-200 3.0L EFI (serial T801000 and up), V-200 Optimax 3.0L DFI (G386496 and up), V-225 3.0L (D280813-G437999), V-225 EFI and Optimax models (various serial ranges), and V-250 3.0L EFI engines with C-3 casting. Verify fitment using your engine's model or serial number before ordering.

Cross References: Replaces Mallory 9-74208 and Sierra 18-8382. Also known as part numbers 26-816575A4, 62-1469, 2863-8101, and 28638101.