# 78490819 Valve Cover | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta valve cover from the Engine group, weighing 7.257 kg and listed for 21 applications in the D series. It supersedes part number 21454061. It is the lighter of a pair with valve cover 78490804 at 10.886 kg, which covers 18 D series applications.

## 🚤 Compatibility

-   **Engine Family:** D
-   **HP Range:** 145-320 HP

Full model list at the end of this description.

## ⚙️ Key Features

-   7.257 kg
-   21 D series applications
-   Supersedes 21454061
-   Lighter of a pair with valve cover 78490804 at 10.886 kg

## 🔌 Function

Seals the top of the cylinder head over the valve mechanism, retaining oil and excluding dirt.

## ⚠️ Common Signs of Failure

-   Oil seeping from the cover joint onto the head or manifold
-   Oil smell or smoke from oil on a hot surface
-   Cover cracked or a mounting boss broken
-   Joint face warped so a new gasket still weeps
-   Fixings loosening as the gasket relaxes

## 🛠️ Service Notes

-   The two valve covers here supersede different earlier numbers and are not interchangeable, so order by part number
-   Fit a new gasket and sealing washers and tighten evenly to the specified figure
-   Check the breather system, as crankcase pressure is a common cause of a repeat leak at this joint

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   78490819 → Supersedes 21454061 → Supersedes 40005652 → Supersedes 3583872

### OEM / Related Numbers

-   21454061 earlier number superseded by this part
-   40005652 earlier number superseded by this part

## 📦 Condition

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

## 🔎 Full Model Compatibility

Typically suits:

-   Volvo Penta D4-260A-F, D4-260D-F, D4-260I-F, D4-300A-F, D4-300D-F, D4-180I-F, D4-225I-F, D4-300I-F, D4-225A-F, D4-175I-G, D4-230I-G, D4-270I-G, D4-320I-G, D4-300I-G, D4-150A-G, D4-230A-G, D4-270A-G, D4-320A-G, D4-300A-G, D4-145I-G, D4-175 VG

## Details

- **Price:** 1260.12 AUD
- **Vendor:** Volvo Penta
- **Type:** Engine Components
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 1260.12 AUD | In stock |

## Images

- 78490819 Valve Cover | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/78490819-valve-cover-genuine-volvo-penta)
> Updated: 2026-09-06