73521 898265005 Mercury Starter Motor | Genuine Used Part

🔧 Product Description

Genuine Mercury / Mariner Starter Motor - Part Numbers: 50-73521 / 50-898265005

A genuine Mercury / Mariner starter motor used on older Mercury two-stroke outboards. This 10-tooth starter family is associated with the Mercury inline starter system and related service parts used across mid-range and high-output two-stroke applications.

⚙️ Key Features

• Genuine Mercury / Mariner starter motor
• Correct OEM references 50-73521 and 50-898265005
• 10-tooth starter drive family
• Used on Mercury / Mariner two-stroke electric-start systems
• Related to Mercury inline starter motor component chart applications

🚤 Compatibility

Commonly used on

• Mercury / Mariner two-stroke starter motor assemblies
• Older 10-tooth Mercury starter systems using the 73521 starter family

Typically suits

• Engine models:
• Mercury inline two-stroke starter applications where 50-73521 is specified
• Mercury / Mariner mid-range and inline high-output electric-start systems using the 73521 / 898265005 starter family
• Mercury starter motor assemblies using the 10-tooth 73521 starter reference and matching service components
• HP Range: model-specific Mercury / Mariner two-stroke applications where listed by starter diagram
• Engine Type: Mercury / Mariner two-stroke outboard
• Year Range: older Mercury / Mariner starter-family applications where the parts chart lists 50-73521 / 50-898265005
• Starter Type: 10-tooth starter motor family

🔌 Function

The starter motor converts battery current into mechanical cranking force, engaging the flywheel to start the engine.

⚠️ Common Signs of Failure

• Starter solenoid clicks but motor does not turn
• Slow or weak cranking
• Starter pinion grinding or slipping
• Intermittent no-crank issue
• Excessive current draw
• Brush, armature, bearing or drive gear wear

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 50-898265005 later related Mercury starter motor service reference
• 50-73521 earlier Mercury starter motor reference
• 735211 related chart / typed reference for the 73521 starter family

OEM / Related Numbers

• 50-898265005
• 898265005
• 50-73521
• 73521
• 735211 typed / chart reference
• 685753 related brush set component
• 90643 related starter component
• 75660 related starter component

Aftermarket / Verified Equivalents

• Aftermarket reference: 50-73521
• Aftermarket reference: 50-898265005
• 10-tooth Mercury / Mariner starter replacement family

📦 Condition

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