Sierra 18-99444 Wiring Harness for Mercury Mariner Outboard Electrical Systems

The Sierra 18-99444 is a wiring harness engineered for Mercury Mariner outboard electrical systems. It is designed as a direct-fit electrical component for outboard motors that use this connection setup, providing the wiring pathway needed to keep engine electrical circuits connected and functioning correctly. As part of Sierra's marine engine parts lineup, this harness is built to standards suited for the marine environment where components are exposed to moisture, vibration, and temperature swings.

This harness is intended for technicians and boat owners performing electrical system repairs or replacements on Mercury Mariner outboards. Keeping the wiring harness in good condition helps maintain reliable starting, charging, and instrument functions on the outboard.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-99444
• Category: Mercury Outboard Electrical System
• Weight: 1.4 pounds
• UPC: 736983854513

Fitment

Mercury Mariner outboard electrical systems.

Replaces (OEM)

No OEM cross-reference numbers are listed for this part.

Frequently Asked Questions

What is the Sierra 18-99444? It is a wiring harness made for Mercury Mariner outboard electrical systems, identified by Sierra part number 18-99444.

How much does this harness weigh? The Sierra 18-99444 wiring harness weighs 1.4 pounds.

What outboard electrical systems is this harness designed for? Sierra part number 18-99444 is categorized for Mercury outboard electrical systems, specifically Mercury Mariner applications.

Is the Sierra 18-99444 an OEM or aftermarket part? The 18-99444 is a Sierra-branded part, sold under Sierra's own part number for Mercury Mariner outboard electrical systems.

What is the UPC for the Sierra 18-99444? The UPC for the Sierra 18-99444 wiring harness is 736983854513.

Does the Sierra 18-99444 include cross-reference or OEM replacement numbers? No OEM cross-reference numbers are listed for the Sierra 18-99444 wiring harness.

What category of part is the Sierra 18-99444? Sierra 18-99444 is listed under the Mercury Outboard Electrical System category as a wiring harness.

Who would need to install the Sierra 18-99444? Anyone servicing or repairing the electrical wiring on a Mercury Mariner outboard motor would use the Sierra 18-99444 harness.