Sierra 18-2226-9 Marine Outboard Bearing Shim .005" (Pack of 2)

The Sierra 18-2226-9 is a precision-machined 0.005" bearing shim designed for use in Johnson/Evinrude outboard lower unit gearcases. Sold as a standard package of two shims, this part is engineered to establish or adjust bearing preload, ensuring bearings roll and move as intended within the gearcase assembly.

Shims like this one are used to fill small gaps, provide support, modify component fit, and produce a level seating surface between parts. They are also commonly used as spacers between worn components during lower unit rebuilds and service.

Key Specifications:

• Thickness: 0.005"
• Inner Diameter (I.D.): 1.530"
• Sold as: Package of 2
• OEM Replacement For: Johnson/Evinrude (OMC) 320168
• Cross-Reference Part Numbers: 47-2226, 47-2226-9, 47-22269, 18-2226, AP2928

Features & Benefits:

• Precision-built to original manufacturer specifications for accurate bearing preload adjustment
• Marine-grade construction suitable for use in demanding saltwater and freshwater environments
• Direct OEM replacement — no modification required
• Manufactured by Sierra, a Sea Star Solutions brand known for quality marine replacement parts