Mercury - Trim Sensor Converter Kit F150 EFI FourStroke 8M0059529. Overview. The Mercury Trim Sensor Converter Kit (8M0059529) lets you use an analog trim gauge with a digital trim sensor on your F150 EFI FourStroke outboard. It converts the digital output from the sensor into an analog signal, so you can add or keep an analog trim gauge without swapping sensors.. The kit connects directly to the harness inside the engine cowl, making installation quick and clean.. Key Features. Converts digital trim signal to analog output for standard trim gauges. Lets you drive an analog trim gauge without replacing the existing digital sensor. Direct connection to the engine cowl harness for simple installation. Designed specifically for trim function only. Genuine Mercury OEM kit built for reliability and marine durability. Compatibility. Mercury F150 EFI FourStroke outboard engines only. Works with analog trim gauges that require a voltage-based signal. Performance & Practical Benefits. This conv