(0433550) Evinrude/Johnson Outboard Gearcase O-Ring & Seal Kit

The number 0433550 (or 433550) refers to a Gearcase Seal Kit used for Johnson and Evinrude outboard motors. This kit is essential for resealing the lower unit of the engine to prevent water intrusion and oil leaks. 
Product Details
Manufacturer: Bombardier Recreational Products (BRP) / OMC.
Type: Lower Unit Gearcase Seal Kit.
Engine Compatibility: Fits various 2-stroke outboard motors, most commonly:
40 HP, 50 HP: 1989 and newer.
48 HP: 1989–1996.
25 HP: 1990–1995 (only those with the "D" suffix).
Kit Contents: Typically includes all necessary gaskets, O-rings, and oil seals for a complete gearcase overhaul. Note that modern versions of this kit often replace two older prop shaft seals with a single, updated double-lip seal.