Wiring Harness - Tilt & Trim – Fits Mercury Marine 65-125 HP Outboards (Replaces 84-819514A15)

Wiring Harness - Tilt & Trim – Fits Mercury Marine 65-125 HP Outboards (Replaces 84-819514A15)

This wiring harness is an aftermarket replacement for 1994-2006 Mercury Marine 65-125 HP outboard engines, including 3-cylinder and 4-cylinder models. It is specifically designed for tilt and trim motor systems that require converting from a 3-wire motor to a 2-wire setup.

This unit is a direct replacement for Mercury Marine part number 84-819514A15 and other equivalent aftermarket parts.

• Function: Converts 3-wire tilt & trim motors to 2-wire operation.
• Installation: Features a direct plug-in design with female bullet connectors for straightforward installation.
• Complete Kit: Includes the main wire harness, a 30A fuse, and two 12V relays.

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket brands.

Compatible Engine Models

Confirm your engine model/year in the table below. For Mercury owners, here’s a guide to help you identify your engine’s serial/model: Mercury Serial Number Guide. You can also review exploded diagrams to verify part numbers: Mercury Parts Diagrams & Catalog.

Technical Specifications

Package Contents

• 1 x Wiring Harness Assembly (Replaces 84-819514A15)
• 1 x 30A Fuse
• 2 x 12V 20A/30A Relays

Installation Guide

1. Safety First: Disconnect the battery before beginning any electrical work.
2. Locate Old Harness: Identify and locate the existing tilt and trim wiring harness on your engine.
3. Disconnect Old Harness: Carefully unplug all connectors from the old harness, noting their positions.
4. Remove Old Components: Remove the old relays and harness assembly.
5. Install New Harness: Connect the new wiring harness, matching the connectors to their corresponding positions on the engine and trim motor.
6. Mount Relays: Securely mount the two new relays in a dry location, away from excessive heat or vibration.
7. Install Fuse: Insert the 30A fuse into the fuse holder on the new harness.
8. Secure Wiring: Neatly route and secure all wires away from moving parts or sharp edges using zip ties.
9. Reconnect Battery: Reconnect the battery terminals.
10. Test Operation: Test the tilt and trim functions to ensure proper up/down operation.

Troubleshooting & FAQ

Q: How do I know if this harness will work with my trim motor?
A: This harness is specifically designed to convert a 3-wire tilt and trim motor system to a 2-wire system. If your Mercury engine falls within the 65-125 HP range (1994-2006) and you need to make this conversion, this part is compatible.

Q: Will this fit my 1995 Mercury 90 HP outboard?
A: Yes, this harness is listed as compatible with the Mercury 90 HP (3-cylinder) 2-Stroke engine models from 1994 through 2006. Please consult the compatibility table to be certain.

Q: What parts are included in this kit? Are relays included?
A: Yes, this is a complete kit. It includes the main wiring harness, one 30A fuse, and two 12V 20A/30A relays. You will not need to purchase these components separately.

Q: My trim motor is not working. Will this fix it?
A: This harness assembly resolves issues related to faulty wiring, bad relays, or a blown fuse. If the trim motor itself is defective, replacing the harness will not solve the problem. Test the motor independently if possible.

Q: OEM vs. Aftermarket?
A: This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.

Q: How fast do you ship and how much does it cost?
A: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.

Q: What is your warranty and return policy?
A: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.

Important Notes

• Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
• This product is an aftermarket replacement part and is not an OEM component.
• Professional installation is recommended to ensure safety and optimal performance.

Why Choose JLM MARINE?

• Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
• Fast Global Shipping: Free delivery worldwide in 5–15 days.
• Direct from Manufacturer: Competitive pricing without compromising quality.