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893891 66015T1 Mercury Starter Motor | Genuine Used Part

893891 66015T1 Mercury Starter Motor | Genuine Used Part

$100.00 AUD
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🔧 Product Description

Genuine Mercury / Mariner Starter Motor - Part Numbers: 893891 / 66015T1

A genuine Mercury / Mariner starter motor used on 3-cylinder and 4-cylinder two-stroke outboards. This 10-tooth starter family is commonly used on 65 Jet, 75HP, 80HP, 90HP, 100HP, 115HP and 125HP engines depending on tooth count and starter diagram.

⚙️ Key Features

  • Genuine Mercury / Mariner starter motor
  • Correct OEM references 893891 and 66015T1
  • 10-tooth starter drive family
  • Used on 3-cylinder and 4-cylinder two-stroke outboards
  • Cross-references with ARCO and Sierra starter replacements

🚤 Compatibility

Commonly used on

  • Mercury / Mariner 3-cylinder two-stroke starter systems
  • Mercury / Mariner 4-cylinder two-stroke starter systems

Typically suits

  • Engine models:
  • Mercury / Mariner 65 Jet 3-cylinder - approximately 1986-1988
  • Mercury / Mariner 80HP 3-cylinder - approximately 1986-1988
  • Mercury / Mariner 75HP 4-cylinder - approximately 1977-1994
  • Mercury / Mariner 80HP 4-cylinder applications using 10-tooth starter family
  • Mercury / Mariner 90HP 4-cylinder - approximately 1977-1994
  • Mercury / Mariner 100HP 4-cylinder applications where 66015T1 is specified
  • Mercury / Mariner 115HP 4-cylinder applications where 66015T1 is specified
  • Mercury / Mariner 125HP 4-cylinder applications where 66015T1 is specified
  • HP Range: commonly 65 Jet and 75HP - 125HP
  • Engine Type: Mercury / Mariner 3-cylinder and 4-cylinder two-stroke outboard
  • Year Range: approximately 1977-1994 for core 10-tooth applications, with later service replacement use where listed
  • Starter Type: 12V, 10-tooth starter motor family

🔌 Function

The starter motor engages the flywheel ring gear and cranks the outboard during electric starting.

⚠️ Common Signs of Failure

  • Starter clicks but does not crank
  • Slow crank with good battery voltage
  • Starter spins without flywheel engagement
  • Grinding at the flywheel
  • Intermittent starting after heat or vibration
  • Worn brushes, bushings, armature or starter drive gear

🔄 Supersession & Cross Reference

OEM Supersession Chain

  • 50-893891T later Mercury starter motor reference
  • 50-66015T1 related Mercury starter motor reference
  • 50-66015 related Mercury starter reference
  • 50-65436 related Mercury starter reference
  • 50-60315 related earlier Mercury starter reference

OEM / Related Numbers

  • 893891
  • 50-893891
  • 50-893891T
  • 66015T1
  • 50-66015T1
  • 66015-2
  • 66015
  • 50-66015
  • 65436
  • 50-65436
  • 60315
  • 50-60315

Aftermarket / Verified Equivalents

  • ARCO: 5375
  • Sierra: 18-5604
  • API Marine: MOT3002N
  • Aftermarket reference: 50-893891T / 50-66015T1

📦 Condition

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