Sierra International 18-3279 Marine Water Pump Service Kit for Honda Outboard Motor Sierra Water Pump Kit without Base Meets or exceeds the original equipment quality Sierra part number: 18-3507 Interchangeable with the following: GLM 12010, Mallory 9-48301, Mercury 46-60366A1, 46-60366Q1, 46-32767A1 Fit specific, check part numbers to ensure proper fit