Suzuki Screw - D1C01-06165. OEM-Grade Fastening for Secure Outboard Engine Assembly. The Suzuki Screw - D1C01-06165 is a genuine replacement part built to meet the high standards of Suzuki marine engineering. Specifically designed for precision applications on Suzuki outboard motors, this screw offers secure fastening where it matters most-helping maintain the integrity of your engine's components under constant vibration, moisture, and load.. Key Features. Genuine OEM Part - Manufactured to Suz