# 84-889279T04 Mercruiser Multi Wake Harness | Genuine Used Part

🔧 Product Description

  

Genuine Mercury / MerCruiser Multi Wake Harness - Part Number: 84-889279T04

  

A genuine Mercury / MerCruiser SmartCraft CAN-V extension harness used in wake-control and VesselView rigging layouts. This harness is commonly associated with Sea Ray CAN-V 3 ft extension / VesselView triple-quad wake harness applications and is used to link wake-system controls into the SmartCraft communication network.

  

⚙️ Key Features

  

• Genuine Mercury / MerCruiser harness

• Correct OEM part number 84-889279T04

• SmartCraft / VesselView CAN-V extension harness

• Used in wake-system and multi-engine display rigging layouts

• Must be matched by plug shape, pin count, harness length and boat rigging layout

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 84-889279T04 current Mercury / MerCruiser harness reference

  

OEM / Related Numbers:

  

• 84-889279T04

• 889279T04

• Sea Ray CAN-V 3 ft extension harness reference

• Sea Ray boat part reference 1891376

• Mercury VesselView triple / quad extension harness reference

  

Aftermarket / Verified Equivalents:

  

• No aftermarket equivalent

  

🚤 Compatibility

  

Commonly used on:

  

• Mercury / MerCruiser SmartCraft CAN-V rigging systems

• VesselView triple / quad display harness layouts

• Sea Ray wake-control boat rigging using Mercury CAN-V harnessing

  

Typically suits:

  

• Boat-rigging controlled applications rather than engine-serial controlled applications

• HP Range: Not horsepower-specific

• Engine Type: Mercury / MerCruiser SmartCraft CAN-V compatible marine rigging

• Year Range: Boat harness layout controlled

• Serial Note: Confirm by existing harness number, connector style, pin layout, length and VesselView / wake-system rigging before installation.

  

🔌 Function

  

This harness connects the SmartCraft / VesselView CAN-V communication circuit into the boat's wake-control or multi-display rigging system so wake functions and engine data can communicate correctly through the network.

  

Common signs of failure:

  

• VesselView does not detect wake-control data

• Wake-control functions are intermittent or offline

• SmartCraft network faults or missing engine data

• Corroded or damaged connector pins

• Harness fault changes when the loom is moved

• Broken locking tab or loose plug fit

• Water intrusion inside the connector body

  

📦 Condition

  

• Genuine used part

• Removed from running engine where applicable

• In good working condition unless otherwise stated

## Details

- **Price:** 20.0 AUD
- **Vendor:** Sawley's Auto and Marine
- **Tags:** Sawley’s AAM Used Parts – Electronic Components | ECU CDI & Electrical Parts

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 20.00 AUD | In stock |

## Images

- 84-889279T04 Mercruiser Multi Wake Harness | Genuine Used Part

---

> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/84-889279t04-mercruiser-multi-wake-harness-genuine-used-part)
> Updated: 2026-06-29