# 0581543 BRP Flywheel | Genuine Used Part

🔧 Product Description

  

Genuine OMC Evinrude Johnson 40HP to 60HP Three-Cylinder Flywheel Assembly - Part Number: 0581543

  

A genuine used OMC flywheel assembly for selected late-1970s Evinrude and Johnson three-cylinder outboards.

  

The flywheel is most commonly documented on 55HP engines but also appears in replacement-market application data for selected 40HP to 60HP engines from the same ignition family.

  

It carries the starter ring gear and internal magnets required by the engine's electric-start, ignition and charging systems.

  

⚙️ Key Features

  

• Genuine OMC Evinrude Johnson OEM flywheel

• Correct part number 0581543

• Unprefixed part reference 581543

• Used on selected late-1970s three-cylinder engines

• Integrated electric-start ring gear

• Internal permanent-magnet rotor

• Correct taper and keyway for compatible crankshafts

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 0581543 documented service reference

• 581543 unprefixed OMC reference

  

OEM / Related Numbers:

  

• 0581543

• 581543

• 0581537 / 581537 related flywheel reference appearing in replacement listings

• Related stator, timer-base, flywheel-key and flywheel-nut references

  

Aftermarket / Verified Equivalents:

  

• LC Powersports inspected replacement inventory SKU: 8397

• Outboard Exchange replacement reference: 581543

• Direct used replacement references: 0581543 and 581543

• Some replacement listings cross-search 581537; physical stamping and ignition configuration must be checked before interchange

  

🚤 Compatibility

  

Documented applications include:

  

• 1977 Evinrude 55HP - model 55E77D

• 1979 Johnson 55HP Seahorse - model 55EL79

• Selected 1976-1979 40HP to 60HP three-cylinder outboards using flywheel 581543

  

• Primary HP Application: 55HP

• Broader Documented Range: Approximately 40HP - 60HP

• Engine Type: OMC Evinrude Johnson three-cylinder carburetted two-stroke outboard

• Year Range: Approximately 1976 - 1979

  

🔌 Function

  

The flywheel supplies rotational inertia, engages with the starter motor and rotates its permanent magnets around the stator to produce ignition and charging voltage.

  

Common signs of failure:

  

• Starter-ring teeth are worn or missing

• Starter pinion does not engage correctly

• Flywheel taper is scored or fretted

• Keyway is damaged

• Magnets are loose or heavily corroded

• Charging output is low or inconsistent

• Ignition performance becomes erratic

• Flywheel has cracks, impact marks or distortion

  

Used-part inspection points:

  

• Compare the stamped number with the original flywheel

• Inspect the complete ring gear

• Check the crankshaft taper and keyway

• Confirm the internal magnet arrangement

• Do not interchange solely by horsepower

  

📦 Condition

  

• Genuine OMC used part

• Previously fitted and may show normal age-related marks, paint loss or oxidation

• Supplied as pictured

• Confirm the stamped flywheel number and ignition-system compatibility before installation

## Details

- **Price:** 50.0 AUD
- **Vendor:** Sawley's Auto and Marine
- **Tags:** Sawley’s AAM Used Parts – Flywheels | Engine Flywheels & Ring Gears

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 50.00 AUD | In stock |

## Images

- 0581543 BRP Flywheel | Genuine Used Part
- 0581543 BRP Flywheel | Genuine Used Part
- 0581543 BRP Flywheel | Genuine Used Part
- 0581543 BRP Flywheel | Genuine Used Part
- 0581543 BRP Flywheel | Genuine Used Part
- 0581543 BRP Flywheel | Genuine Used Part
- 0581543 BRP Flywheel | Genuine Used Part
- 0581543 BRP Flywheel | Genuine Used Part
- 0581543 BRP Flywheel | Genuine Used Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/0581543-brp-flywheel-genuine-used-part)
> Updated: 2026-07-12