Power Trim Relay | Sierra 18-5705 Sierra Power Trim Relay | 18-5705 Aftermarket power trim relay without mounting tab for older model Volvo Penta AQ 270, 275, and 280 model outdrives. Relay for the mechanical lifting device used on Volvo Penta AQ270, 275 and 280 stern drives 5 connection terminals without the mounting tab 40 amps resistive when contact open 30 amps conductive when contant open 20 amps resistive when contact closed 15 amps conductive when contact closed Replaces Volvo Penta 3857533