# 20496548 Plug | Genuine Volvo Penta Part

## 🔧 Product Description

OEM closure or protective component used in the cylinder block, crankcase or cylinder-head service opening. It seals, retains or protects the designated opening and restores the original installation.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta TD420VE
-   Volvo Penta TAD620VE
-   Volvo Penta TAD650VE
-   Volvo Penta TAD660VE
-   Volvo Penta TAD420VE

-   **Engine Family:** TD, TAD
-   **Year Range:** Approximately late 1990s-2010s, depending on engine and installation

## ⚙️ Key Features

-   Published length 1.5 mm
-   0.029 kg
-   For the cylinder block, crankcase or cylinder-head service opening
-   Listed for 5 applications across TD and TAD series engines
-   L=1.5mm (Volvo assembly listing)

## 🔌 Function

Closes an opening in the cooling and block area so the passage behind it stays sealed against coolant pressure.

## ⚠️ Common Signs of Failure

-   Coolant seeping or bubbling at the plugged opening
-   Coolant level falling with no hose leak found
-   Crusted coolant residue ringing the plug
-   Plug found loose or its seal found hardened on removal
-   Bore found corroded when the plug is taken out

## 🛠️ Service Notes

-   The published length of 1.5 mm looks too short to match a 0.029 kg plug, so treat the figure with caution and order by part number rather than by dimension
-   Clean the bore back to sound metal and renew the seal with the plug

## 📦 Condition

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

## Details

- **Price:** 5.79 AUD
- **Vendor:** Volvo Penta
- **Type:** Fasteners & Fixings
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 5.79 AUD | In stock |

## Images

- 20496548 Plug | Genuine Volvo Penta Part

---

> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/20496548-plug-genuine-volvo-penta)
> Updated: 2026-10-10