# 20412266 Plug | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta radiator plug used at four positions in the TD720GE radiator. Each plug closes a manufacturing or service opening and seals with gasket 969011.

## 🚤 Compatibility

-   **Engine Family:** D, TD

Full model list at the end of this description.

## ⚙️ Key Features

-   Radiator tank / core closure plug
-   Four used in radiator 20412366 / replacement radiator 20797530
-   Uses sealing gasket 969011
-   Suitable for hot pressurised engine coolant
-   Should be renewed if corroded or damaged during removal
-   Engine type: Volvo Penta 7-litre industrial diesel
-   Quantity varies by assembly, most commonly two

## 🔌 Function

Closes and seals four radiator tank or core openings to retain coolant pressure.

## ⚠️ Common Signs of Failure

-   Coolant seepage around a plug
-   Plug corrosion or movement
-   Damaged plug threads
-   Failed gasket
-   Cooling system losing pressure

## 🛠️ Service Notes

-   Clean the threads and the seating face before fitting, and make sure the opening itself is clear of old sealant, swarf and corrosion
-   Renew the sealing washer or O-ring where one is fitted rather than reusing a flattened one, and only use thread sealant where the workshop manual for your engine calls for it
-   Tighten to the figure given in the workshop manual for your engine — plugs in aluminium and other soft castings strip easily, and a plug pulled up hard to cure a leak usually distorts the seat and makes it worse
-   Where the plug closes an oil, fuel or coolant passage, run the engine up to temperature afterwards and check the joint under pressure before signing the job off
-   Keep removed plugs paired with the holes they came out of during a strip-down — plugs of very similar appearance often differ in thread, reach or sealing type

## 🔄 Supersession & Cross Reference

### OEM / Related Numbers

-   20412366 - related radiator references
-   20797530 - related radiator references
-   20796115 - related cooling package
-   20412281 - radiator cap
-   969011 - sealing gaskets

## 📦 Condition

-   Genuine Volvo Penta part
-   Brand new
-   Supplied in original or equivalent packaging

## 🔎 Full Model Compatibility

Typically suits:

-   Volvo Penta D13C1-B MH, D13C1-A MP, D13C2-A MP, D13C3-A MP, D13C4-A MP, D13B-A MP, D13B-H MP, D13B-G MP, D13B-L MP, D13B-E MH, D13B-E MH (FE), D13B-K MP, D13B-N MH, D13B-N MH (FE), D13B-B MP, D13B-D MP, D13B-J MP, D13B-M MP, D13B-C MP, D13C4-B MP, D13C6-A MP, D13C5-B MP, D13C8-B MP
-   Volvo Penta TD720GE, TD720VE PP

## Details

- **Price:** 148.67 AUD
- **Vendor:** Volvo Penta
- **Type:** Fasteners & Fixings
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 148.67 AUD | In stock |

## Images

- 20412266 Plug | Genuine Volvo Penta Part
- 20412266 Plug | Genuine Volvo Penta Part - photo 2 of 2

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/20412266-plug-genuine-volvo-penta)
> Updated: 2026-10-09