18-684M Water Pump Compatible with 5.7L 5.0L 4.3L Volvo Penta Circulation Mercruiser,1968-98，46-8M0113734 8503991 3853850 18-684M

【 Preuim Quality Materials】:Well-Machined Dokili water Pump, made of solid steel, help to keep your vehicles running at Top performance. 【 Function】: This water pump is an engine-powered bi-directional pump that circulates seawater to maintain the right engine temperatures. Replacing the water pump is a safety measure that needs to be done regularly every 75,000-100,000 miles to prevent engine damage before it fails completely. 【 Replaces Part】:Mercruiser 8M0113734, 8503991, 850399, 17437, 850399002, 878341, 811841, FI1101292, 54793, 52226, FI1101208, FI1100742, 18-3599-2, MW02, 20318, 15201, S551045, 9-42606. 【 Package】:This kit includes a new black solid steel water pump, stainless shaft, pulley and steel backing plate which provides maximum corrosion resistance and durability. 【 】:If the part ever fails on your 4.3L, 5.0L, 5.7L V6/V8 Boat Engines simply contact us for a replacement. Avoid yourself from headache by replacing your worn timing components and save time and money by purchasing this kit from AA Ignition.