# 20405788 Rubber Sleeve | Genuine Volvo Penta Part

🔧 Product Description

  

Genuine Volvo Penta Sensor Connector Rubber Sleeve - Part Number: 20405788

  

Genuine Volvo Penta protective rubber sleeve used around a pressure, temperature or switch connector in the D5/D7 contacts-and-sensors assembly.

  

⚙️ Key Features

  

• Flexible protective sleeve for a sensor or switch connection

• Confirmed beside coolant, oil-pressure and flywheel sensors

• Protects the connector from water, oil and abrasion

• Allows wiring movement without exposing the terminals

• Must fit the original sensor body and cable

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 20405788 - current Volvo Penta rubber-sleeve reference

  

OEM / Related Numbers:

  

• 20924086 - coolant-temperature sensor

• 21001502 / 21291011 - oil-pressure sensor references

• 20513340 - related sensor/switch

• 20459868 / 20511126 / 20964264 - flywheel sensor chain

  

Aftermarket / Verified Equivalents:

  

• No aftermarket equivalent

  

🚤 Compatibility

  

Commonly used on:

  

• Volvo Penta D5/D7 contacts and sensor wiring

  

Typically suits:

  

• Engine / equipment models:

• TD520GE

• TAD530GE

• TAD531GE

• TAD532GE

• TD720GE

• TAD730GE

• TAD731GE

• TAD732GE

• TAD733GE

  

• Engine Type: Volvo Penta 5- and 7-litre industrial diesel

• Year / Serial Range: Sensor type and connector arrangement dependent

  

🔌 Function

  

Covers and protects the sensor electrical connection from moisture, oil and mechanical damage.

  

Common signs of failure:

  

• Cracked or missing sleeve

• Water or oil contamination at the terminal

• Wire chafing

• Intermittent sensor signal

• Sleeve hardened and no longer sealing

  

📦 Condition

  

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging

## Details

- **Price:** 17.0 AUD
- **Vendor:** Volvo Penta
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 17.00 AUD | In stock |

## Images

- 20405788 Rubber Sleeve | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/20405788-rubber-sleeve-genuine-volvo-penta)
> Updated: 2026-07-29