# 21178777 Wiring Harness | Genuine Volvo Penta Part

🔧 Product Description

  

Genuine Volvo Penta 19-Inch Alarm Panel Wiring Harness - Part Number: 21178777

  

Brand-new genuine Volvo Penta 19-inch alarm-panel jumper harness with a four-pin male connector and two-pin female connector. It links panel 21178775 to the catalyst-engine wiring loom without field splices.

  

⚙️ Key Features

  

• Length: approximately 19 inches

• Four-pin male to two-pin female connector arrangement

• Factory alarm-panel pinout

• Marine-sealed connector housings

• Harness only; alarm panel and sounder are separate

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 21178777 - Current OEM reference

  

OEM / Related Numbers:

  

• Volvo Penta 21178777

• VOE21178777

• Alarm panel 21178775

• Alarm 21182016

  

Aftermarket / Verified Equivalents:

  

• No aftermarket equivalent

  

🚤 Compatibility

  

Commonly used on:

  

• 5.7GiCE catalyst-engine alarm panel circuit

  

Typically suits:

  

• Engine / drive models:

• 5.7GiCE-300-M

• 5.7GiCE-300-MF

• Engine Type: Volvo Penta 5.7-litre V8 catalyst marine gasoline engine

• Year / Generation: M/MF catalyst generation

  

🔌 Function

  

Carries the warning-signal and supply circuits between the engine loom and alarm panel.

  

Common signs of failure:

  

• Alarm panel inoperative

• Intermittent warning when the harness is moved

• Broken conductor near a connector

• Corroded pins

• Damaged connector latch

  

📦 Condition

  

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging

## Details

- **Price:** 149.89 AUD
- **Vendor:** Volvo Penta
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 149.89 AUD | In stock |

## Images

- 21178777 Wiring Harness | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21178777-wiring-harness-genuine-volvo-penta)
> Updated: 2026-08-02