Trim Cylinder Port & Starboard for MerCruiser Alpha 1 Gen 2, 815954A7 & 815935A7

Trim Cylinder Port & Starboard for MerCruiser Alpha 1 Gen 2

This trim cylinder set replaces OEM part numbers 815954A7 and 815935A7 for MerCruiser Alpha 1 Gen 2 sterndrives, providing reliable hydraulic trimming action.

Overview

This trim cylinder port and starboard assembly is a direct replacement for MerCruiser Alpha 1 Gen 2 sterndrive systems, restoring proper outdrive trim adjustment. It includes two cylinders, one for the port side and one for the starboard side, matching OEM part numbers 815954A7 and 815935A7. This trim cylinder set is essential for maintaining precise boat handling and performance on the water.

Built For Performance

• Factory-spec hydraulic cylinders for smooth operation
• Includes both port and starboard cylinders for a complete replacement
• Designed for MerCruiser Alpha 1 Gen 2 sterndrives
• Direct bolt-on installation using existing hardware
• Meets or exceeds OEM specifications for reliability

Fits These Machines

• for MerCruiser Alpha 1 Gen 2 sterndrive

On-The-Job Use

• Adjusting outdrive trim angle for optimal boat performance
• Replacing worn or leaking trim cylinders on MerCruiser sterndrives
• Maintaining proper tilt and trim function for shallow water navigation
• Ensuring balanced trim response on port and starboard sides

Specs At A Glance

Good To Know

Q: How do I know if my trim cylinder needs replacement? A: Common signs include slow or uneven trimming, leaking hydraulic fluid, or difficulty holding the outdrive in position.

Q: Can I install this trim cylinder set myself? A: Yes, it is a bolt-on replacement, but you will need to bleed the hydraulic system after installation to remove air pockets.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.