819514A15 Mercury Trim Harness Assy | Genuine Used Part

🔧 Product Description

Genuine Mercury Power Trim Relay Harness Assembly - Part Number: 84-819514A15

A genuine Mercury power tilt and trim relay harness for selected 65 Jet through 125HP outboards. The harness contains the high-current trim relays, fuse protection, motor leads and engine-harness connections used to operate a two-wire power-trim motor.

The current Mercury service replacement is 8M0092077.

⚙️ Key Features

• Genuine Mercury OEM trim relay and harness assembly
• Original service number 84-819514A15
• Current replacement number 8M0092077
• Converts trim-switch commands into reversible power for the two-wire trim motor
• Used on selected three-cylinder and four-cylinder Mercury and Mariner outboards

🚤 Compatibility

Commonly used on

• Mercury and Mariner two-wire power-trim systems
• Three-cylinder and four-cylinder outboards with engine-mounted UP and DOWN relays

Typically suits

• Engine models:
• Mercury 65 Jet - serial 0D283222 to 0G760299
• Mercury 65 Jet - serial 0G760300 to 0T979999
• Mercury 65 Jet - serial 0P017000 to 0P325499
• Mercury 65 Jet - serial 9793577 to 0P016999
• Mercury 65 Jet - serial 0T980000 to 0T999999
• Mercury 65 Jet - serial 1B000001 and above
• Mercury 75HP three-cylinder - serial 0D283222 to 0G760299
• Mercury 75HP three-cylinder - serial 0G760300 to 0T979999
• Mercury 75HP three-cylinder - serial 0P017000 to 0P325499
• Mercury 75HP three-cylinder - serial 0P325500 and above
• Mercury 75HP three-cylinder - serial 9793577 to 0P016999
• Mercury 75HP three-cylinder - serial 0T980000 to 0T999999
• Mercury 75HP three-cylinder - serial 1B000001 and above
• Mercury 80 Jet - serial 0D283222 to 0G760299
• Mercury 80 Jet - serial 0G760300 to 0T979999
• Mercury 80 Jet - serial 0P017000 to 0P325499
• Mercury 80 Jet - serial 9793577 to 0P016999
• Mercury 80 Jet - serial 0T980000 to 0T999999
• Mercury 80 Jet - serial 1B000001 and above
• Mercury 90HP three-cylinder - serial 0D283222 to 0G760299
• Mercury 90HP three-cylinder - serial 0G760300 to 0T979999
• Mercury 90HP three-cylinder - serial 0P017000 to 0P325499
• Mercury 90HP three-cylinder - serial 0P325500 and above
• Mercury 90HP three-cylinder - serial 0T980000 to 0T999999
• Mercury 90HP three-cylinder - serial 1B000001 and above
• Mercury 100HP four-cylinder - serial 0G760300 to 0G965520
• Mercury 100HP four-cylinder - serial 0P017000 to 0P058999
• Mercury 100HP later four-cylinder trim-harness applications
• Mercury 115HP four-cylinder
• Mercury 125HP four-cylinder
• HP Range: 65 Jet - 125HP
• Engine Type: Mercury / Mariner three-cylinder and four-cylinder carburetted two-stroke outboard
• Year Range: Approximately 1994-2006

🔌 Function

The harness switches battery current through two relays to reverse the trim-motor direction. It also distributes fused power and connects the engine trim switches, remote-control circuit and trim motor.

⚠️ Common Signs of Failure

• Trim operates in only one direction
• Relay clicks without motor operation
• Intermittent trim caused by corroded relay sockets
• Burnt fuse holder or overheated wiring
• Green corrosion inside connectors
• No voltage at the trim motor
• Harness works when relays are manually bypassed

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 8M0092077 → Supersedes 84-819514A15
• 84-819514A15 later OEM relay-harness reference
• 84-819514A13 earlier related trim-harness assembly
• 819514-series earlier base harness references

OEM / Related Numbers

• 8M0092077
• 84-819514A15
• 819514A15
• 84-819514A13
• 819514A13
• 819514
• Mercury two-wire trim relay harness
• 113-22002 aftermarket electrical reference

Aftermarket / Verified Equivalents

• Arrowhead: TRM9200
• EMP: 4-6823
• Jeenda: 113-22002
• Engine Room Marine: M9903
• Marine electrical aftermarket: 819514A15 / 8M0092077 relay harness

📦 Condition

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