45522A3 Aftermarket Mercruiser Power Trim Overhaul Kit | Sawley's Select Marine Parts

🔧 Product Description

Aftermarket replacement MC-1 Complete Trim Cylinder Overhaul Kit - Replaces Part Number: 45522A3

New aftermarket complete trim-cylinder overhaul kit replacing MerCruiser 45522A3. It is used to rebuild early MC-1 cylinders where the tube, piston, valve and internal wear components require renewal as well as the hydraulic seals.

⚙️ Key Features

• Complete early MC-1 cylinder overhaul package

• Services internal tube, piston, valves, springs and seals

• Designed for 1970-1982 MerCruiser trim-cylinder families

• Equivalent to GLM complete overhaul kit 87412

• One kit services one trim cylinder

🧰 Kit / Assembly Contents

• 1 × O-ring - GLM P/N 81109

• 1 × O-ring - GLM P/N 82109

• 1 × O-ring - GLM P/N 81169

• 1 × O-ring - GLM P/N 82129

• 1 × Quad ring - GLM P/N 41170

• 1 × Washer - GLM P/N 07400

• 1 × Sealing washer - GLM P/N 21677

• 1 × Rod scraper/wiper - GLM P/N 41172

• 1 × Inner cylinder tube - GLM P/N 87411

• 1 × Floating piston - GLM P/N 02191

• 1 × Tube guide - GLM P/N 02192

• 1 × Retaining bolt - GLM P/N 22354

• 1 × Plain washer - GLM P/N 21668

• 1 × Shim washer - GLM P/N 02195

• 2 × Valve springs - GLM P/N 02196

• 1 × Valve guide - GLM P/N 02197

• 2 × Steel balls - GLM P/N 26384

• 1 × Impact/shock piston - GLM P/N 02199

• 1 × Return/shock piston - GLM P/N 02190

• 1 × Return spring - GLM P/N 26386

• 1 × Return guide - GLM P/N 02187

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 45522A3 (MerCruiser OEM complete overhaul-kit reference)

OEM / Related Numbers:

• GLM 87412

• Early MC-1 trim-cylinder family

Aftermarket / Verified Equivalents:

• GLM: 87412

• Recmar complete MC-1 cylinder overhaul kit

• Aftermarket 45522A3 overhaul package

🚤 Compatibility

Commonly used on:

• Early MerCruiser MC-1 hydraulic trim cylinders

Typically suits:

• Engine / Drive models:

• 120HP, 140HP, 165HP and related inline-engine packages

• Early V8 MC-1 drives using the rebuildable 1970-1982 cylinder design

• HP / Drive Range: Approximately 120HP - 260HP

• System Type: Early MerCruiser dual hydraulic trim-cylinder system

• Year Range: 1970 - 1982

• Serial / Component Identification: Confirm the early MC-1 cylinder design; later Alpha and Bravo cylinders use different seal kits.

🔌 Function

The overhaul kit renews the piston, tube, valves, springs, wear components and hydraulic seals required to restore the matching trim cylinder to correct operating pressure and movement.

Common signs of failure / service requirement:

• Hydraulic fluid leaks from the trim-cylinder rod or tube

• Cylinder drifts down under engine or drive weight

• Piston binds, moves unevenly or cannot complete its travel

• Internal pressure bypass remains after external seals are renewed

• Tube, piston, valves or springs show wear during disassembly

📦 Condition

• New aftermarket replacement part

• Brand new

• Supplied in original or equivalent packaging