878143T05 Mercury Stator | Genuine Used Part

🔧 Product Description

Genuine Mercury / Mariner Four-Stroke Stator Assembly - Part Number: 878143T05

A genuine Mercury / Mariner stator assembly used on 30HP to 60HP four-stroke EFI outboards. This charging stator supplies electrical output to the rectifier / regulator and battery charging circuit.

⚙️ Key Features

• Genuine Mercury / Mariner stator assembly
• Correct Mercury part number 878143T05
• Also formatted as 398-878143T05
• Used on 30HP to 60HP four-stroke EFI outboards
• Cross-references with 18-99236 replacement stator family

🚤 Compatibility

Commonly used on

• Mercury / Mariner 30HP to 60HP four-stroke EFI charging systems
• Smaller Mercury four-stroke outboards using 878143T05 stator assembly

Typically suits

• Engine models:
• Mercury 30HP EFI 4-Stroke applications where 878143T05 is specified
• Mercury 40HP EFI 4-Stroke applications where 878143T05 is specified
• Mercury 50HP EFI 4-Stroke applications where 878143T05 is specified
• Mercury 60HP EFI 4-Stroke applications where 878143T05 is specified
• Mariner 30HP EFI 4-Stroke applications where 878143T05 is specified
• Mariner 40HP EFI 4-Stroke applications where 878143T05 is specified
• Mariner 50HP EFI 4-Stroke applications where 878143T05 is specified
• Mariner 60HP EFI 4-Stroke applications where 878143T05 is specified
• Mercury 60HP 4-Stroke generator applications around 2002 model-family use
• HP Range: 30HP - 60HP
• Engine Type: Mercury / Mariner four-stroke EFI outboard
• Year Range: approximately 2002-2008
• System Type: Charging stator / generator assembly

🔌 Function

The stator generates AC charging output under the flywheel. The rectifier / regulator converts this output into DC voltage for battery charging and electrical-system operation.

⚠️ Common Signs of Failure

• Battery not charging
• Charging voltage low or unstable
• EFI electrical faults caused by low system voltage
• Hard starting from poor battery recovery
• Electrical accessories draining the battery while running
• Burnt winding smell or discoloured coil windings
• Damaged connector or broken stator leads
• AC output below specification during testing

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 398-878143T05 Mercury stator service format
• 878143T05 Mercury stator assembly reference
• 398-878143T3 related earlier Mercury stator reference

OEM / Related Numbers

• 878143T05
• 878143T 05
• 398-878143T05
• 398878143T05
• 878143T3
• 398-878143T3

Aftermarket / Verified Equivalents

• CDI Electronics: 174-0001
• Sierra: 18-99236
• Aftermarket reference: 398-878143T05
• Aftermarket Mercury / Mariner 30HP-60HP four-stroke stator replacement

📦 Condition

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