# 20551783 Gasket | Genuine Volvo Penta Part

🔧 Product Description

  

Genuine Volvo Penta Gasket - Part Number: 20551783

  

This genuine Volvo Penta gasket is an OEM service component used in the Mechanical Governor / Control-Housing Gasket. It is manufactured to the original Volvo Penta dimensional, material and interface requirements for the documented Volvo Penta 5- and 7-litre TD/TAD generator diesel mechanical-governor systems application. Technical identification: Gasket installed between the mechanical governor/control housing components; Volvo product group 2520, function group 2199.. In service, it creates a controlled seal between mating surfaces so fluid, gas, pressure or contaminants cannot pass across the joint. Selection must be confirmed by OEM part number 20551783, the exact model/product number, serial number and installed assembly configuration.

  

⚙️ Key Features

  

• Genuine Volvo Penta OEM gasket

• OEM part number 20551783

• Documented application: Mechanical Governor / Control-Housing Gasket

• Validated engine/application family: Volvo Penta 5- and 7-litre TD/TAD generator diesel mechanical-governor systems

• Technical distinction: Gasket installed between the mechanical governor/control housing components; Volvo product group 2520, function group 2199.

• Primary function: Creates a controlled seal between mating surfaces so fluid, gas, pressure or contaminants cannot pass across the joint.

• Clean and inspect both sealing surfaces, renew the seal whenever the joint is opened, avoid twisting or cutting and tighten the joint evenly to specification.

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 20551783 (current/original OEM service reference)

  

OEM / Related Numbers:

  

• 20551783

  

Matched Service / Assembly Components:

  

• 20405508 governor cover gasket

• 20405509 governor housing gasket

• 20405507 governor cover gasket

• 20460082 M6 six-point/lock screw, L=16 mm

  

Aftermarket / Verified Equivalents:

  

• No aftermarket equivalent

  

🚤 Compatibility

  

Commonly used on:

  

• Mechanical Governor / Control-Housing Gasket

  

Typically suits:

  

• Engine / product models:

• TD520GE

• TAD520GE

• TAD530GE

• TAD531GE

• TAD532GE

• TD720GE

• TAD720GE

• TAD721GE

• TAD722GE

• TAD730GE

• TAD731GE

• TAD732GE

• TAD733GE

  

• Engine / Application Family: Volvo Penta 5- and 7-litre TD/TAD generator diesel mechanical-governor systems

• Serial / Configuration Note: Governor arrangements vary by 1500/1800 rpm calibration and production configuration. When ordering governor parts, confirm engine type, serial number, rated power and rated speed.

  

🔌 Function

  

Creates a controlled seal between mating surfaces so fluid, gas, pressure or contaminants cannot pass across the joint. Clean and inspect both sealing surfaces, renew the seal whenever the joint is opened, avoid twisting or cutting and tighten the joint evenly to specification.

  

Common signs of failure:

  

• Visible oil, coolant, fuel or air leakage at the sealed joint

• Loss of pressure, vacuum or fluid level in the connected system

• Contamination passing across the seal or entering the assembly

• Seal hardened, cut, swollen, flattened or displaced

• Repeat leakage caused by a damaged groove, shaft or mating face

  

📦 Condition

  

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging

## Details

- **Price:** 117.65 AUD
- **Vendor:** Volvo Penta
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 117.65 AUD | In stock |

## Images

- 20551783 Gasket | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/20551783-gasket-genuine-volvo-penta)
> Updated: 2026-07-29