# 9741A2 Mercruiser Flywheel | Genuine Used Part

🔧 Product Description

  

Genuine MerCruiser 3.7L Flywheel Assembly - Part Number: 9741A2

  

A genuine used flywheel for selected MerCruiser 3.7L / 224 CID inline four-cylinder sterndrive engines.

  

The flywheel mounts to the rear of the crankshaft and carries the ring gear used by the starter motor. It operates inside housing 94985A2 and transfers engine torque through coupling assembly 97432A2.

  

⚙️ Key Features

  

• Genuine MerCruiser 3.7L flywheel

• Correct Mercury reference 9741A2

• Designed for the MerCruiser 224 CID engine

• Used with housing 94985A2

• Supports starter-ring and engine-coupler operation

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 251-9741A2 MerCruiser 3.7L flywheel reference

  

OEM / Related Numbers:

  

• 9741A2

• 251-9741A2

• Related ring-gear assembly: 97433A1

• Engine coupler: 97432A2

• Flywheel housing: 94985A2

• Housing casting: 94984-C1

  

Aftermarket / Verified Equivalents:

  

• No aftermarket equivalent

  

🚤 Compatibility

  

Commonly used on:

  

• MerCruiser 3.7L inline four-cylinder sterndrive engines

• MerCruiser 470-family crankshaft assemblies

• Engines using flywheel housing 94985A2

  

Typically suits:

  

• Engine models:

• MerCruiser 165 3.7L

• MerCruiser 170

• MerCruiser 180

• MerCruiser 188

• MerCruiser 190

• MerCruiser 470-family engines specifying 9741A2

  

• HP Range: Approximately 165HP - 190HP

• Engine Type: 3.7L / 224 CID inline four-cylinder petrol marine engine

• Year Range: Approximately 1983 - 1989 for the documented 9741A2 application

  

🔌 Function

  

The flywheel smooths engine rotation, carries the starter ring gear and transfers crankshaft torque to the engine coupler and sterndrive.

  

Common signs of failure:

  

• Starter teeth are damaged

• Starter motor grinds or slips

• Flywheel is cracked or distorted

• Excessive vibration or runout

• Coupler mounting points are worn

• Heat checking on the flywheel surface

• Corrosion around the crankshaft mounting face

  

📦 Condition

  

• Genuine used part

• Removed from running engine where applicable

• In good working condition unless otherwise stated

## Details

- **Price:** 60.0 AUD
- **Vendor:** Sawley's Auto and Marine
- **Tags:** Sawley’s AAM Used Parts – Flywheels | Engine Flywheels & Ring Gears

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 60.00 AUD | In stock |

## Images

- 9741A2 Mercruiser Flywheel | Genuine Used Part
- 9741A2 Mercruiser Flywheel | Genuine Used Part
- 9741A2 Mercruiser Flywheel | Genuine Used Part
- 9741A2 Mercruiser Flywheel | Genuine Used Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/9741a2-mercruiser-flywheel-genuine-used-part)
> Updated: 2026-07-12