The Genuine Volvo Engine Crankshaft Thrust Washer (part number 30777742) is a small but crucial component in an engine's crankshaft system. It is designed to prevent excessive movement of the crankshaft, which can cause damage to the engine and affect its performance. This thrust washer is made by Volvo, a reputable and trusted brand in the automotive industry, ensuring high quality and compatibility with Volvo engines. It is a genuine OEM (Original Equipment Manufacturer) part, meaning it is made to the same specifications as the original part installed in the vehicle. This particular thrust washer is designed for use in Volvo engines and has a part number of 30777742. It is an essential part for ensuring the smooth and efficient operation of the engine, making it an important component for any Volvo vehicle.