Sierra International 18-3258 Marine Water Pump Kit for Suzuki Outboard Motor Sierra Thrust Washer Meets or exceeds the original equipment quality Sierra part number: 18-4220 Interchangeable with the following: GLM 21300, Mercruiser/Mercury 77987A1, 13171, 12-835467, 12-8354671, 12-835467Q01 Fit specific, check part numbers to ensure proper fit