2018 Yamaha Sport Boat Models Where can I find my model number? ELT1050A-T ELT1050A-T (F4A1) [020] ELT1050B-T ELT1050B-T (F4A2) [020] RP1800A-T RP1800A-T (F4B3) [020] RP1800B-T RP1800B-T (F4B4) [020] RX1800A-T RX1800A-T (F3AX) [020] RX1800B-T RX1800B-T (F3AY) [020] XBT1800A-T XBT1800A-T (F3R4) [020] XBT1800B-T XBT1800B-T (F3R5) [020] XBT1800C-T XBT1800C-T (F3R6) [020]