The Kubota WG750 Oil Pan is a replacement part designed specifically for the 3-cylinder gas engine found in the Grasshopper 721 model. This block-style oil pan is compatible with the Kubota WG750 model and is a crucial component for maintaining the performance and longevity of your lawn mower. With a single oil pan included in the pack, this high-quality part is a perfect fit for those looking to repair or upgrade their lawn mower engine.