Mercury 2 Stroke Outboard Thermostat Repair Kit for 70 75 80 90 115 125 HP Motors Replaces 803061T1 Sierra 18-3569 18-3549 18-0339 122F 50C Temperature Rating Simple DIY Fix for Mercury Marine Engines

Regular price $65.95 Sale price$155.00you save $89.05
SKU: VXB0D1N2X6B4





2 Stroke Outboard Thermostat Repair Kit for 70-125 HP Engines
✔️ 122F 50C rating complete with seals gaskets for 70-125 HP engines

This thermostat repair kit restores proper cooling flow on two stroke outboard motors used on boats and personal watercraft.

✅ Replaces 803061T1 plus Sierra 18-3569 18-3549 and 18-0339
✅ Comes with thermostat 14586 seal 62386001 gasket 430068 and washer 47533
✅ Rated at 122F 50C to keep engine temps steady during runs

💡 What temperature rating works best for maintaining two stroke outboard engine efficiency? A correct rating keeps cooling water moving at the right pace. - Matches factory specs so the powerhead runs without hot spots - Cuts risk of overheating on long days out on the water - Allows quick swap with basic hand tools for most DIY boat owners - Pairs well with common aftermarket cross reference numbers