86617A7 86617A20 Mercury Stator | Genuine Used Part

🔧 Product Description

Genuine Mercury / Mariner Ignition Stator Assembly - Part Numbers: 86617A7 / 86617A20

A genuine Mercury / Mariner ignition stator assembly used on smaller 6HP to 25HP two-stroke outboards. This stator assembly mounts beneath the flywheel and supplies ignition-system electrical output on compatible Mercury and Mariner engines.

⚙️ Key Features

• Genuine Mercury / Mariner ignition stator assembly
• Correct OEM references 86617A7 and 86617A20
• Later 86617A20 service assembly in the 86617 stator family
• Used on 6HP to 25HP Mercury / Mariner two-stroke outboards
• Cross-references with Sierra and Mallory replacement stator references

🚤 Compatibility

Commonly used on

• Mercury / Mariner small two-stroke ignition systems
• 6HP to 25HP outboards using the 86617 stator assembly family

Typically suits

• Engine models:
• Mercury 6HP two-stroke applications where 86617A20 is specified
• Mercury 8HP two-stroke applications where 86617A20 is specified
• Mercury 9.9HP two-stroke applications where 86617A20 is specified
• Mercury 10HP two-stroke applications where 86617A20 is specified
• Mercury 15HP two-stroke applications where 86617A20 is specified
• Mercury 20HP two-stroke applications where 86617A20 is specified
• Mercury 25HP two-stroke applications where 86617A20 is specified
• Mariner 6HP / 8HP / 9.9HP / 10HP / 15HP / 20HP / 25HP two-stroke applications using the 86617 stator family
• HP Range: commonly 6HP - 25HP
• Engine Type: Mercury / Mariner two-stroke outboard
• Year Range: approximately 1990s-2000s depending on model and serial range
• System Type: Ignition stator assembly

🔌 Function

The ignition stator generates electrical output under the flywheel for the outboard ignition system. It provides the energy required for spark generation during cranking and running.

⚠️ Common Signs of Failure

• Weak or missing spark
• Hard starting
• Engine cuts out once warm
• Misfire under throttle
• Intermittent spark caused by heat or vibration
• Damaged or brittle stator leads
• Burnt stator winding or cracked insulation
• Stator resistance or output below specification

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 86617A20 later Mercury ignition stator assembly reference
• 86617A13 related earlier Mercury stator reference
• 86617A11 related earlier Mercury stator reference
• 86617A9 related earlier Mercury stator reference
• 86617A7 earlier Mercury stator reference
• 86617A5 related earlier Mercury stator reference
• 86617A3 related earlier Mercury stator reference
• 86617A2 related earlier Mercury stator reference

OEM / Related Numbers

• 86617A20
• 86617A 20
• 86617A13
• 86617A11
• 86617A9
• 86617A7
• 86617A5
• 86617A3
• 86617A2

Aftermarket / Verified Equivalents

• Sierra: 18-5864
• Mallory: 9-25505
• Aftermarket reference: 5864
• Aftermarket reference: 86617A20

📦 Condition

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