The BRP (Bombardier Recreational Products) part number 0320788 (often written as 320788) is a factory original equipment (OEM) hydraulic trim cylinder end cap (also called a gland cap). It is designed for the power tilt and trim assemblies on vintage and classic Johnson and Evinrude outboard marine engines.

New Old Stock (NOS) — genuine factory original part.

⚠️ Please Note: This listing is for the end cap only — no seals or O-rings are included.

Fitment and Compatibility

This end cap fits a massive range of V4 and V6 outboard engines built primarily between 1978 and 1990, as well as select later models:

• Horsepower Range: Widely used on 60 HP to 300 HP engines (including popular 70, 75, 85, 115, 140, 150, 175, 200, 235, and 250 HP configurations).
• System Specifics: It typically corresponds to mid-to-late 2-ram or 3-ram power tilt and trim midsections with specific manufacturing suffixes (such as "M" suffix models).

Features and Purpose

• Leak Prevention: It screws onto the top of the hydraulic trim cylinder to seal the fluid chamber while allowing the trim rod to move up and down cleanly.
• OEM Quality: Genuine BRP factory part — not an aftermarket substitute.
• New Old Stock: Genuine factory original part, unused and in original condition.
• Cap Only: No seals or O-rings are included with this part. Seals must be sourced separately.