32102-87J20 Suzuki Flywheel | Genuine Used Part

🔧 Product Description

Genuine Suzuki / Johnson 85-Tooth Flywheel Magneto - Part Number: 32102-87J20

A genuine used Suzuki flywheel-magneto assembly for first-generation DF40 and DF50 four-stroke outboards and equivalent Johnson four-stroke engines.

The flywheel is a three-cylinder, 85-tooth assembly and directly cross-references Johnson / Evinrude part number 5036074. It is also commonly identified by Mitsubishi magneto code F4T765.

⚙️ Key Features

• Genuine Suzuki flywheel-magneto assembly
• 85-tooth starter ring gear
• Suzuki reference 32102-87J20
• Johnson / Evinrude equivalent 5036074
• Suits 40HP and 50HP three-cylinder four-stroke outboards

🚤 Compatibility

Commonly used on

• Suzuki DF40 and DF50 four-stroke outboards
• Johnson 40HP and 50HP Suzuki-built four-stroke outboards
• Three-cylinder magneto systems using F4T765

Typically suits

• Engine models:
• Suzuki DF40
• Suzuki DF40T
• Suzuki DF40QH
• Suzuki DF50
• Suzuki DF50T
• Suzuki DF50TH
• Johnson 40HP four-stroke - approximately 2005-2006
• Johnson 50HP four-stroke - approximately 2005-2006
• Engines originally fitted with Suzuki 32102-87J20 or BRP 5036074
• HP Range: 40HP - 50HP
• Engine Type: Inline three-cylinder, four-stroke EFI outboard
• Year Range: Suzuki approximately 1999 - 2010; Johnson approximately 2005 - 2006

🔌 Function

The flywheel carries the starter ring gear and permanent magnets that pass the stator to generate charging and ignition-system power.

⚠️ Common Signs of Failure

• Starter ring teeth are damaged
• Magnets are loose or cracked
• Battery does not charge correctly
• Engine has an unstable timing signal
• Flywheel contacts the stator
• Crankshaft keyway is damaged
• Excessive flywheel runout

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 32102-87J20 current Suzuki service flywheel for the applicable engine family
• 5036074 corresponding Johnson / Evinrude reference

OEM / Related Numbers

• Suzuki: 32102-87J20
• Suzuki: 3210287J20
• Suzuki: 32102-87J20-000
• Johnson / Evinrude: 5036074
• Mitsubishi: F4T765
• Flywheel key and bolt from the 87J magneto assembly
• Stator and charging coil from the matching DF40 / DF50 ignition system

Aftermarket / Verified Equivalents

• No aftermarket equivalent

📦 Condition

• Genuine used part
• Removed from running engine where applicable
• In good working condition unless otherwise stated