Ridesteady Classic Speed Control Kit 4" Display, Chrome Bezel Price: $949.00 CPU 3.5" Display / keypad Throttle motor with control cable Paddlewheel speed sensor Electrical wiring Connection kit Installation and Operation Guide One year limited warranty 60 day return policy Choose options below: Display Bezel BlackChrome, +$19.99 Throttle Motor Cable Length 14 ft.20 ft., +$9.99 The cable length needed between the CPU (under the dash) and the throttle motor (in the engine bilge). Inboards/direct-drives can typically use the 14ft length while V-drives and I/Os need the 20ft length. [OPTIONAL] Existing Paddlewheel Cable NoneInclude, +$9.99 This cable can be used to connect to an existing, previously-installed paddlewheel. Refer to Install Guide pages 12-13 or contact Hydrophase for more information. Throttle Return Spring No Throttle Return SpringThrottle Return Spring, +$7.00 Some Mercruiser carbureted engines need a throttle return spring. Check here for more information.