## Left Crankcase for 22mm Needle Bearings, 139FMB 50 4T AC - WM Motor This left crankcase is a high-quality replacement part from the reputable brand WM Motor, designed specifically for mopeds with 139FMB and 147FMB engines. Engineered for precision and durability, it ensures reliable performance and a long service life. Constructed from robust materials, it's resistant to mechanical damage and harsh operating conditions. ### Why choose the WM Motor crankcase? * **Perfect Fit:** The crankcase is precisely manufactured, guaranteeing hassle-free installation and a perfect fit for 139FMB and 147FMB engines. * **High Quality:** WM Motor is a brand known for producing high-quality motorcycle parts, resulting in long-lasting durability and reliability. * **22mm Needle Bearings:** Designed for use with 22mm diameter needle bearings, ensuring smooth and efficient crankshaft operation. * **Engine Protection:** The robust construction of the left crankcase effectively protects internal engine components from damage and contamination. * **Long-Term Investment:** Choosing a WM Motor crankcase is an investment in the longevity and safety of your moped. This left crankcase is the ideal choice for anyone seeking a robust and reliable replacement part for their moped.