# 20550336 Insulator | Genuine Volvo Penta Part

🔧 Product Description

  

Genuine Volvo Penta Insulator - Part Number: 20550336

  

This genuine Volvo Penta insulator is an OEM service component used in the Intake / Starting-Aid Insulator. It is manufactured to the original Volvo Penta dimensional, material and interface requirements for the documented Volvo Penta 7-litre TAD7 generator diesel application. Technical identification: Insulator at the charge-air heater connection. In service, it provides the specified thermal and/or electrical isolation between the heated or energised component and the surrounding engine structure. Selection must be confirmed by OEM part number 20550336, the exact model/product number, serial number and installed assembly configuration.

  

⚙️ Key Features

  

• Genuine Volvo Penta OEM insulator

• OEM part number 20550336

• Documented application: Intake / Starting-Aid Insulator

• Validated engine/application family: Volvo Penta 7-litre TAD7 generator diesel

• Technical distinction: Insulator at the charge-air heater connection

• Primary function: Provides the specified thermal and/or electrical isolation between the heated or energised component and the surrounding engine structure.

• Inspect for heat tracking and cracks, preserve the specified stacking order and tighten the component evenly without crushing the insulation.

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 20550336 (current/original OEM service reference)

  

OEM / Related Numbers:

  

• 20550336

  

Aftermarket / Verified Equivalents:

  

• No aftermarket equivalent

  

🚤 Compatibility

  

Commonly used on:

  

• Intake / Starting-Aid Insulator

  

Typically suits:

  

• Engine / product models:

• TAD720GE

  

• Engine / Application Family: Volvo Penta 7-litre TAD7 generator diesel

• Serial / Configuration Note: Confirm starting-aid/intake configuration and engine serial number.

  

🔌 Function

  

Provides the specified thermal and/or electrical isolation between the heated or energised component and the surrounding engine structure. Inspect for heat tracking and cracks, preserve the specified stacking order and tighten the component evenly without crushing the insulation.

  

Common signs of failure:

  

• Cracking, carbon tracking or heat discolouration

• Electrical leakage, short circuit or starting-aid fault

• Heat transfer damaging nearby hose, cable or manifold parts

• Loose component caused by crushed or distorted insulation

• Arcing, burnt fasteners or repeated heater/fuse failure

  

📦 Condition

  

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging

## Details

- **Price:** 8.53 AUD
- **Vendor:** Volvo Penta
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 8.53 AUD | In stock |

## Images

- 20550336 Insulator | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/20550336-insulator-genuine-volvo-penta)
> Updated: 2026-07-30