36 865448A01 Trim Pump Reservoir Oil Cap for MerCruiser

This Trim Pump Reservoir Oil Cap is a replacement oil cap for MerCruiser sterndrive and inboard engines, matching OEM Part# 36-865448A01.

Product Overview

This MerCruiser trim pump reservoir oil cap seals the hydraulic fluid reservoir on your boat’s trim pump system. It prevents leaks and contamination, ensuring consistent trim and tilt operation. Designed for boat owners and marine mechanics, this cap is a direct OEM replacement part.

Key Features & Performance

• Direct replacement for OEM part number 36-865448A01
• Prevents fluid leaks and keeps contaminants out of the reservoir
• Durable construction withstands marine environments
• Easy installation—no special tools required
• Ensures reliable trim pump operation

Fitment & Compatibility

• Compatible with MerCruiser sterndrive and inboard engines (Alpha, Bravo, etc.)
• Replaces original trim pump reservoir oil caps on many MerCruiser models

Common Uses

• Replacing a worn or broken oil cap on boat trim pump reservoirs
• Servicing MerCruiser sterndrive trim systems
• Maintaining hydraulic fluid levels in marine applications

Technical Specifications

• Part Number(s): 36-865448A01
• Product Type: Trim Pump Reservoir Oil Cap
• Material: Plastic with sealing gasket

Frequently Asked Questions

Q: Will this cap fit my 1998 MerCruiser 5.7L Alpha One? A: Yes, this cap fits most MerCruiser sterndrive trim pump reservoirs, including the Alpha One series.

Q: Does the cap come with a new gasket? A: Yes, the cap includes an integrated sealing gasket for a leak‑proof fit.

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