Ensure optimal engine performance with this high-quality Outboard Thermostat, specially designed to fit Yamaha 9.9-70hp 4 Stroke models from 2001 to 2004 and Mercury Mariner 9.9-50hp 4 Stroke models from 1998 to 2002. Crafted from premium copper material, this thermostat offers excellent corrosion resistance and durability, guaranteeing long-lasting service under harsh marine conditions. Key Features: · Premium Copper Construction: Made from high-grade copper, ensuring firm structure, corrosion resistance, and extended durability for reliable engine cooling. · OEM Replacement: Direct replacement for OEM part numbers 6G8-12411-01, 66M-12411-01, and 825212T02, providing an exact fit and maintaining original engine performance standards. · Wide Compatibility: Specifically designed to fit Yamaha 9.9-70hp 4 Stroke (2001-2004) and Mercury Mariner 9.9-50hp 4 Stroke (1998-2002) outboard engines, ensuring broad application coverage. · Easy Installation: Simple to install with no need for complicated tools, making replacement quick and hassle-free for both professionals and DIY enthusiasts. · Reliable Performance: Maintains optimal engine temperature by regulating coolant flow, helping prevent overheating and enhancing engine efficiency. Specifications: · Item Type: Outboard Thermostat · Material: Copper · Color: As shown in the picture · OEM Numbers: 6G8-12411-01, 66M-12411-01, 825212T02 · Fitment: Yamaha 9.9-70hp 4 Stroke (2001-2004), Mercury Mariner 9.9-50hp 4 Stroke (1998-2002) Package Includes: · 1 x Outboard Thermostat This durable copper Outboard Thermostat is an essential replacement part that ensures your marine engine operates smoothly and efficiently. Upgrade your boat’s cooling system with this reliable and easy-to-install thermostat designed to meet original equipment standards.