Sierra Mercruiser Magnetic Drain Screw 18-2375 by Sierra International Sold out $5.17 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Sold out Sierra Mercruiser Magnetic Drain Screw #18-2375 OEM # 10-14834A1, 22-67892A1 Fits: Mercruiser Alpha MR/Gen II lower units.