Ensure optimal performance and safety for your marine diesel engine with genuine STX Hydraulic Tightening Nuts, specifically engineered for the 7S60MC-C-02 engine model manufactured by STX Engine Co., Ltd. These high-quality OEM nuts (Part Number P90401-0171-451) are critical components for the engine’s hydraulic tensioning system, delivering precise, secure, and uniform fastening for heavy-duty marine applications. Manufactured to rigorous maritime standards, they guarantee exceptional durability, resistance to high mechanical stress, and exact fitment. These specific units are referenced under S.05-03 and were originally allocated for HULL NO: H2002 (Samjin / DYVI), making them the perfect choice for reliable routine maintenance and engine overhauls.