Sierra 18-6763 Tilt and Trim Motor Sierra Tilt and Trim Motor Meets or exceeds the original equipment quality Sierra part number: 18-6763 Interchangeable with the following: Arco 6217, Mercruiser 92975A6, 79271A4, Mercury 92975A32, 67914A2, 92975A28, 92975A22, 92975A4, 76395A2, 76395A5, 64461A4, 97528A3, 92975A6