87412A3 Aftermarket Mercruiser Trim Cylinder Assembly | Sawley's Select Marine Parts

🔧 Product Description

Aftermarket MerCruiser TR/TRS Complete Starboard Trim Cylinder - Part Number: 87412A3

Complete starboard hydraulic trim-cylinder assembly for MerCruiser TR and TRS external-line sterndrives. It is the side-specific companion to 87411A3.

⚙️ Key Features

• Starboard-side complete cylinder

• External hydraulic-line TR/TRS configuration

• Installed piston rod, piston, gland/end-cap and internal seals

• Correct side-specific hose-port orientation

• Direct replacement for the 1977-1993 TR/TRS cylinder family

📋 Kit / Assembly Contents

• 1 × Complete starboard cylinder body and tube - 87412A3

• 1 × Installed piston rod and piston assembly - supplied within the cylinder

• 1 × Installed end-cap/gland and seal package - supplied within the cylinder

• Hydraulic hoses and anchor hardware - serviced separately

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 87412A3 → Original complete starboard cylinder reference

• Current replacement availability is aftermarket/NLA-dependent

OEM / Related Numbers:

• 87412A3

• REC87412A3

• TR/TRS external-line cylinder family

• 87399-series external-line repair components

Aftermarket / Verified Equivalents:

• Recmar: REC87412A3

• Aftermarket TR/TRS starboard cylinder assemblies

🚤 Compatibility

Commonly used on:

• MerCruiser TR and TRS external-hose trim systems

Typically suits:

• Engine / drive models:

• TR 200-ratio sterndrives

• TRS 1.50-ratio sterndrives

• TR/TRS drive packages produced approximately 1977-1993

• Installations requiring the starboard cylinder 87412A3

• HP Range: Drive application; not engine-horsepower specific

• Engine / Drive Type: External-line dual hydraulic trim cylinder

• Year Range: 1977-1993

• Serial / Identification Range: Confirm starboard side, hose-port orientation, anchor-pin dimensions and cylinder number.

🔌 Function

Converts hydraulic pressure into linear force to trim and tilt the TR/TRS sterndrive and hold it at the selected position.

Common signs of failure or replacement requirement:

• Hydraulic leakage at rod, cap or ports

• Drive settles after trimming

• Pitted or bent piston rod

• Unequal port/starboard movement

• Binding or incomplete cylinder travel

📦 Condition

• Brand-new aftermarket replacement part

• Supplied as a new replacement component

• Supplied in suitable retail or equivalent packaging