1Replacement reference OEM number: 893353A03, for Mercruiser DTS. 2Built-in ignition switch with ACC/OFF/ON/START positions. 3 Overall dimensions are approximately 2 3/8x5 inches and requires a 7/8 inch cutout diameter. 4 comes with a 6-spade male connector. Easy to install and use, plug and play. 5Strictly follow manufacturing standards to ensure excellent performance. Item Type: Ignition Key Switch Kit Material: Plastic Color: Black OEM: 893353A03 Accessories: Fits Mercruiser DTSBoat Part No. 1075588 is a new key switch for digital throttle and shift engines, Part No. 87-893353A03 Position: 4 (ACC/OFF /ON/START) Incision diameter: approx. 7/8" Overall dimensions: 2 3/8" diameter. x 5 inch D connections: (1) 6 spade male connections Installation: Fixed installation, plug and play 1 x Ignition switch 2 x Key Please double check your product's part number, matching information is for reference only. If you are not sure about the item, please contact us before purchasing to avoid unnecessary, thank you