Sierra Mercury Mariner Engine Wiring Harness with Cannon Plug Connector, Part 18-99484

The Sierra 18-99484 is an engine wiring harness built for Mercury Mariner outboard motors, part of Sierra's Mercury Outboard Electrical System lineup. It uses a cannon plug connector to link the outboard's engine-mounted wiring to the boat's control and ignition circuits, providing a secure, weather-resistant connection point that is standard on Mercury Mariner powerheads. Engine wiring harnesses like this one carry the electrical signals and power needed for ignition, gauges, and engine monitoring, so a sound connector and properly rated wiring are essential to reliable engine operation. At 0.8 pounds, the 18-99484 harness is a manageable, straightforward component to handle during installation or replacement of an aging or damaged engine harness. As a Sierra part, it is identified by part number 18-99484 and UPC 808282396022 for accurate ordering, helping boat owners and marine technicians source the correct electrical component for Mercury Mariner outboard electrical system service and repair work.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-99484
• Compatible Engine Brand: Mercury Mariner
• Connector Type: Cannon Plug
• Category: Mercury Outboard Electrical System
• Weight: 0.8 pounds
• UPC: 808282396022

Frequently Asked Questions

What is the Sierra 18-99484 wiring harness used for? The Sierra 18-99484 is an engine wiring harness used to connect the electrical wiring on Mercury Mariner outboard motors.

What outboard brand does the 18-99484 harness fit? The 18-99484 harness is built for Mercury Mariner outboard engines as part of Sierra's Mercury Outboard Electrical System line.

Does the 18-99484 harness use a cannon plug connector? Yes, the Sierra 18-99484 engine harness connects using a cannon plug connector.

How much does the Sierra 18-99484 harness weigh? The 18-99484 wiring harness weighs 0.8 pounds.

What is the UPC number for the 18-99484 harness? The UPC for the Sierra 18-99484 wiring harness is 808282396022.

Is the Sierra 18-99484 a genuine Sierra marine part? Yes, 18-99484 is a genuine Sierra part number for a Mercury Mariner engine wiring harness.

What category of part is 18-99484 classified under? Sierra classifies part 18-99484 under its Mercury Outboard Electrical System category.

Does Sierra publish OEM cross-reference numbers for the 18-99484 harness? No OEM cross-reference numbers are published for the Sierra 18-99484 wiring harness.

Is the 18-99484 harness heavy to handle during installation? No, at 0.8 pounds the 18-99484 wiring harness is light and easy to handle during installation or replacement.