Thermostat And Seals Kit For Johnson Evinrude Outboard Motors Replacement 5 To 235 HP, 60C/143F Thermostat, Stainless Steel Seals, Easy Plug-N-Play Cooling System Upgrade, Fits Sierra 18-3543 And OEM 5005440 8330720 777260

Thermostat and Seals Kit for Outboard Motors, 60C/143F
✔️ 1-pack thermostat kit with stainless seals, plug-n-play

This thermostat and seals kit upgrades the cooling system by replacing worn components with a stainless steel thermostat and two seal gaskets. It is designed to work across a wide range of outboard motors from 5-235 HP and is compatible with Sierra 18-3543 and OEM numbers listed in the product details.

✅ 60°C / 143°F thermostat temperature with OEM compatibility
✅ Stainless steel thermostat body and 2 seal gaskets
✅ Plug-n-play cooling system upgrade for quick install
✅ Fits Sierra 18-3543 and OEM 5005440, 8330720, 777260
✅ Compatible with Johnson/Evinrude outboards 5-235 HP

💡 What is an outboard thermostat and seals kit used for and why upgrade the cooling system?

It's handy for maintaining optimal engine temperature and preventing overheating in varying loads.

- Keeps cooling system temps within optimal range for many engines
- Easy upgrade reduces downtime and installs quick
- Replaces OEM parts like Sierra 18-3543 and 5005440, 8330720, 777260
- Suitable for engines across a wide HP range from 5-235 HP