Working on a Wisconsin engine rebuild? This cylinder base gasket is exactly what you need for models QD617 and W4-1770! It's brand new, never used, and comes in its original packaging - just like you'd get from an engine parts supplier. This gasket creates the essential seal between the cylinder and engine block, preventing compression loss and oil leaks. While it's unbranded/generic, it's manufactured to proper specifications for a precise fit. These Wisconsin engines are workhorses in industrial, agricultural, and vintage equipment, and proper gaskets are crucial for maintaining performance. Whether you're doing a complete overhaul or just replacing a leaking gasket, this part ensures a proper seal. The installation is straightforward if you're familiar with small engine work - just clean the surfaces, position the gasket correctly, and reassemble. MPN and UPC don't apply, but the compatibility is clear: Wisconsin QD617 and W4-1770 engines. This single gasket might be a small part, but it plays a big role in your engine's compression and reliability. Keep your Wisconsin motor running strong with this essential replacement gasket. Perfect for mechanics, farmers, or anyone maintaining equipment with these durable Wisconsin engines. Don't let a simple gasket failure keep your equipment down - this replacement gets you back in business!