# 21665608 Level Guard | Genuine Volvo Penta Part

🔧 Product Description

  

Genuine Volvo Penta Electronic Fluid Level Guard - Part Number: 21665608

  

A genuine electronic level-guard assembly used in a Volvo Penta engine or vessel monitoring system. It detects the condition of the assigned fluid reservoir and provides a warning or control signal when the level falls outside the calibrated range.

  

⚙️ Key Features

  

• Genuine Volvo Penta level-monitoring device

• Electronic alarm / control output

• Designed for engine-room heat and vibration

• Sealed connection and sensor body

• Application and calibration specific

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 21665608 (current OEM reference)

  

OEM / Related Numbers:

  

• 21665610 - separately calibrated coolant level guard

• 3547710 - related coolant-level guard reference

• 3588990 / 21416784 / 21872119 - related level-sensor references

  

Aftermarket / Verified Equivalents:

  

• No aftermarket equivalent

  

🚤 Compatibility

  

Commonly used on:

  

• Volvo Penta fluid-level monitoring installations whose catalogue specifies level guard 21665608

  

Typically suits:

  

• Engine models:

• Complete engine, reservoir and serial number must identify level guard 21665608

  

• HP Range: Installation dependent

• Engine Type: Volvo Penta marine or industrial electronic monitoring system

• Year Range: Production-era fitment determined by product and serial number

• Fitment Note: Confirm the monitored fluid, sensor type and connector before ordering.

  

🔌 Function

  

Monitors the assigned fluid level and sends a warning or control signal to the alarm panel or engine control system.

  

Common signs of failure:

  

• False low-level alarm

• No warning when the reservoir level falls

• Intermittent alarm caused by connector or wiring faults

• Corrosion or fluid intrusion at the terminals

• Open- or short-circuit diagnostic faults

  

📦 Condition

  

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging

## Details

- **Price:** 2738.1 AUD
- **Vendor:** Volvo Penta
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 2738.10 AUD | In stock |

## Images

- 21665608 Level Guard | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21665608-level-guard-genuine-volvo-penta)
> Updated: 2026-08-03