Sierra 18-3426 Water Pump Repair Kit With Housing Mercury and Yamaha Outboards.
Please note: this kit does not contain the housing grommet and the impeller key. Sold as is.
Sierra 18-3426 Water Pump Repair Kit With Housing Mercury Yamaha Outboards
Mercury Water Pump Repair Kit With Housing. This kit includes all parts to replace Impeller and cup in the water pump. Replaces Yamaha 689-W0078-04-00 and Mercury 42431M, 84829M, 97793M, 97793T. Used on the following Yamaha and Mercury Mariner Outboards 1984 25HP and 1984 30HP