# 97499A2 Mercruiser Starter Motor | Genuine Used Part

🔧 Product Description

  

Genuine MerCruiser 3.7L / 470-Series Starter Motor - Part Number: 50-97499A2

  

A genuine MerCruiser starter motor used on MerCruiser 3.7L / 470-series 4-cylinder petrol engines. This 12-volt, 9-tooth, clockwise starter family is commonly used on 165, 170, 180, 190, 3.7L, 470 and 488-series MerCruiser engines from the 1980s.

  

⚙️ Key Features

  

• Genuine MerCruiser starter motor

• Correct OEM reference 50-97499A2

• 12-volt marine starter motor

• 9-tooth drive gear

• Used on MerCruiser 3.7L / 470-series petrol engines

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 50-97499R4 later remanufactured / service reference

• 50-97499R3 related remanufactured / service reference

• 50-97499R2 related remanufactured / service reference

• 50-97499A2 MerCruiser starter motor assembly reference

• 50-79604A3 related earlier MerCruiser starter reference

• 50-79604A1 related earlier MerCruiser starter reference

• 50-72550A2 related MerCruiser starter reference

• 50-72550A1 related MerCruiser starter reference

• 50-65785A1 related MerCruiser starter reference

• 50-47454 earlier MerCruiser starter reference

  

OEM / Related Numbers:

  

• 50-97499A2

• 97499A2

• 50-97499R4

• 50-97499R3

• 50-97499R2

• 50-79604A3

• 50-79604A1

• 50-72550A2

• 50-72550A1

• 50-65785A1

• 50-47454

  

Aftermarket / Verified Equivalents:

  

• Sierra: 18-5907

• Recmar: REC50-97499A2

• API Marine: 2103 style replacement

• Aftermarket reference: 50-97499A2 / 50-97499R series

  

🚤 Compatibility

  

Commonly used on:

  

• MerCruiser 3.7L 4-cylinder petrol engines

• MerCruiser 470 / 488-series starter systems

  

Typically suits:

  

• Engine models:

• MerCruiser 165 3.7L 4-cylinder starter applications

• MerCruiser 170 3.7L 4-cylinder starter applications

• MerCruiser 180 3.7L 4-cylinder starter applications

• MerCruiser 190 3.7L 4-cylinder starter applications

• MerCruiser 3.7L / 224 CID 4-cylinder starter applications

• MerCruiser 470 starter applications, approximately 1983-1989

• MerCruiser 488 starter applications, approximately 1983-1989

• Front-mount counter-rotation GM V8 marine engine applications where the diagram specifies this starter family

  

• Engine Type: MerCruiser 3.7L / 224 CID 4-cylinder petrol engine

• Year Range: approximately 1983-1989 for core 470 / 488-series use

• Starter Type: 12V, 9-tooth, clockwise rotation, 2-bolt mount

  

🔌 Function

  

The starter motor engages the flywheel ring gear and cranks the petrol marine engine during electric starting.

  

Common signs of failure:

  

• Starter clicks but does not crank

• Slow crank despite charged battery

• Starter gear grinding at flywheel

• Intermittent hot-start issue

• Excessive current draw

• Worn brushes, solenoid contacts, armature, bearings or drive gear

  

📦 Condition

  

• Genuine used part

• Removed from running engine where applicable

• In good working condition unless otherwise stated

## Details

- **Price:** 40.0 AUD
- **Vendor:** Sawley's Auto and Marine
- **Tags:** Sawley’s AAM Used Parts – Starter Motors | Marine Starter Motors & Cranking Systems

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 40.00 AUD | In stock |

## Images

- 97499A2 Mercruiser Starter Motor | Genuine Used Part
- 97499A2 Mercruiser Starter Motor | Genuine Used Part
- 97499A2 Mercruiser Starter Motor | Genuine Used Part
- 97499A2 Mercruiser Starter Motor | Genuine Used Part
- 97499A2 Mercruiser Starter Motor | Genuine Used Part
- 97499A2 Mercruiser Starter Motor | Genuine Used Part
- 97499A2 Mercruiser Starter Motor | Genuine Used Part
- 97499A2 Mercruiser Starter Motor | Genuine Used Part
- 97499A2 Mercruiser Starter Motor | Genuine Used Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/97499a2-mercruiser-starter-motor-genuine-used-part)
> Updated: 2026-07-06