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

🚤 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

🔄 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

📦 Condition

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