1. Replacing numbers for reference: 893353A03, fit for Mercruiser DTS. 2. Inboard ignition switch, features or OFF or ON or positions. 3. Approximately 2 3 or 8x5in overall dimension, requires a cutout diameter of 7 or 8in. 4. With one 6spade male connection. Easy to install and use, plug and play. 5. Strictly the manufacturing standard to make performance. Item Type: Ignition Key Switch Kit Part Number: 893353A03 Fitment: Fit for Mercruiser DTS Boat part number 1075588 is a new key switch for digital throttle and shift engines, part number 87-893353A03 Positions: 4 ( or OFF or ON or ) Cutout Diameter: . 7 or 8in Overall Dimension: 2 3 or 8in Dia. x 5in D Connection: (1) 6-spade male connection Mounting: Fixed installation, plug and play Colour:black Material:plasticandmetal Package Contents: 1x Key Switch Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.