# 20459835 Cover | Genuine Volvo Penta Part

## 🔧 Product Description

A genuine Volvo Penta cover used in the engine housing, valve-train or control-system enclosure. It is supplied as an individual service component under part number 20459835 and is intended to restore the original fit, sealing, alignment, retention or operating function of the specified assembly. This listing supplies the named part only; adjoining components shown in the engine arrangement are serviced separately unless explicitly stated.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta TD420VE
-   Volvo Penta TAD420VE

-   **Engine Family:** TD, TAD

## ⚙️ Key Features

-   Cover for an engine housing or control-system enclosure
-   0.004 kg
-   Listed for 2 fitments across the TD and TAD series

## 🔌 Function

Closes and protects the designated engine, valve-train or electrical assembly.

## ⚠️ Common Signs of Failure

-   The cover is cracked, warped or corroded
-   Fasteners or locating features are damaged
-   Oil, dirt or moisture enters the enclosed assembly

## 🛠️ Service Notes

-   Clean both sealing faces back to clean metal and check the cover for distortion, cracks or pulled bolt holes before refitting — a warped flange will not seal even with a new gasket
-   Where the joint uses a gasket, seal or O-ring, always fit a new one and seat it dry unless the workshop manual for your engine specifies a sealant; never try to make a poor joint tight with extra sealant
-   Tighten the fasteners progressively and evenly, working out from the centre, to the figure given in the manual for your engine — pressed steel, alloy and plastic covers distort easily if pulled down hard or unevenly
-   If the cover carries a shaft seal or bearing, support it square to the shaft as it goes on so the seal lip is not nicked or rolled over
-   Check that any breather, drain or oil return passage in the cover is clear before final tightening, and look for leaks once the engine has been run up to temperature

## 📦 Condition

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

## Details

- **Price:** 13.96 AUD
- **Vendor:** Volvo Penta
- **Type:** Engine Components
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 13.96 AUD | In stock |

## Images

- 20459835 Cover | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/20459835-cover-genuine-volvo-penta)
> Updated: 2026-09-19