435345 Trim Cylinder End Cap Seal Kit for Johnson Evinrude OMC 40 300HP Outboard

Product Overview

This trim cylinder end cap seal kit rebuilds the hydraulic seals on Johnson, Evinrude, and OMC outboard trim cylinders. Designed for 40-300 HP models, it stops fluid leaks and restores proper trim operation.

Key Features & Performance

• Includes all necessary O-rings and seals for the end cap assembly
• Formulated elastomer resists salt water and hydraulic fluid deterioration
• Direct-fit replacement without special tools
• Restores trim system pressure and eliminates drift
• OEM-quality materials for long service life
• Cost-effective alternative to buying a complete trim cylinder

Fitment & Compatibility

• Johnson outboard engines 40-300 HP (vintage applicable)
• Evinrude outboard engines 40-300 HP (vintage applicable)
• OMC outboard engines 40-300 HP with corresponding trim cylinder
• Fits select models using OEM part number 435345

Common Uses

• Repairing leaking trim cylinder end caps
• Rebuilding worn seals during annual maintenance
• Restoring hydraulic lift and trim function
• Preventing corrosion inside the trim cylinder

Technical Specifications

• Material: Buna-N / Nitrile rubber seals
• Application: Trim cylinder end cap
• Part Number(s): 435345

Frequently Asked Questions

Q: Is this seal kit compatible with 2001 Evinrude 150 HP? A: If the trim cylinder uses OEM part 435345, yes; please verify your existing end cap configuration before ordering.

Q: Do I need to disassemble the entire trim cylinder to install these seals? A: Only the end cap must be removed. The kit replaces seals in the cap, not the inner ram seals – follow your service manual for proper procedure.

Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.