20 Pack Black Lower Gear Case Oil Drain Gaskets For Yamaha 90430-08020-00 And 90430-08003-00, Exact Yamaha Replacement Set For 4 Stroke Outboard Motors With Japanese Hard Fiberboard Gaskets

Yamaha Lower Gear Gasket Set 20 Pack 90430-08020/08003
✔️ Yamaha gaskets 90430-08020-00 & 90430-08003-00, 5/16 in

This 20-pack gasket set is designed for Yamaha four-stroke outboard lower gearcases. These hard fiberboard gaskets seal the lower unit to prevent oil leaks during changes and routine maintenance.

✅ 20-pack gaskets for stocked maintenance
✅ 5/16 in (8 mm) ID for precise seal
✅ Black Japanese hard fiberboard construction resists oil & water
✅ Fits Yamaha 4-stroke outboards and older models like F150LCA, F175XCA
✅ Exact replacement for Yamaha 90430-08020-00 and 90430-08003-00

💡 What is a lower gear case gasket used for in Yamaha outboard maintenance and oil changes?

- It seals around the oil drain area, preventing leaks during oil changes - It blocks water from entering the lower unit, helping preserve gear oil - Having a spare set reduces downtime during maintenance