This rebulid kit with Housing is used for Johnson Evinrude 2 Stroke Non-Relieved Gearcase, Plastic Wedge Key Impeller,V4 V6 V8 and 85hp 90hp 100 115 125 130 135 150 175 225 235 250 300 hp 1979–1994 outboard engine models NorthBoat impeller kit is capable of OEM specifications, compatible for Johnson Evinrude OEM part numbers 5001594 0434421 0777800 0395062 0435447 0392750 0393082 0395060 0390768 0391637, for Mercury 8M6012792, for Sierra 18-3392 19-3390 Fits: 85HP, 1979–1994; 90HP 100HP 115HP, 1979–1994 Looper, except SL Model; 100HP Commercial, 1984–1994; 125HP, 1993–1994 25 inch shaft S suffix; 130HP 135HP 150HP 175HP 225HP 235HP 250HP 300HP, 1979–1994 includes 20 inch shaft; V4 V6 V8, 1982–1994 Includes: 1x Water Pump Impeller 395864 1x Impeller Key 331107 1x Pump Housing 435959 1x Cup & Wear Plate Assembly 435027 1x Gasket 324701 5x O-Ring 4x Grommet 4x Stainless Steel Bolt 2x Stainless Steel Screw Used on the driveshaft inside your outboard motor's gearcase; fixes your boat motor's overheating, weak pee stream, and rough running from a worn-out impeller; perform maintenance and swap it every 1–2 years or 100 hours to keep your motor happy

This 5001594 Water Pump Rebuild Kit with 395864 Impeller fit the following Johnson Evinrude OMC models:

3HP 4HP 9.9HP 15HP 65HP 80HP 85HP 88HP 90HP 100HP 105HP 110HP 112HP 115HP 120HP 125HP 130HP 140HP 150HP 155HP 175HP 185HP 200HP 225HP 235HP 250HP 275HP 300HP

When the following situations occur on your impeller, it means that you may need to replace the impeller：

You should inspect your impeller at the beginning of each season. If there are signs of wear, such as cracked or damaged blades, it is time to replace the impeller

When the water temperature of the engine starts to rise, especially at low idle. Or when your engine reaches normal operating temperature, the amount of water flowing out decreases. This may be due to a blockage in the cooling outlet, or it may be due to worn or damaged impellers

If your impeller is three or more years old, it's time to replace it. Over time, the blades become hardened and take on a fixed shape, deteriorating engine performance or, in extreme cases, simply falling apart