# 21234084 Cover | Genuine Volvo Penta Part

## 🔧 Product Description

A protective or closing cover used on a designated Volvo Penta cooling-water pipe or housing. It closes the service opening and helps protect the internal cooling passage from leakage and contamination.

## ⚙️ Key Features

-   Factory-machined mounting and sealing surfaces
-   Used with designated cooling-water pipes
-   Protects the enclosed passage or connection
-   Direct replacement where part number 21234084 is specified
-   Engine type: Marine or industrial Volvo Penta diesel

## 🔌 Function

Closes and seals an opening in the cooling-water pipe or housing.

## ⚠️ Common Signs of Failure

-   Corroded sealing face
-   Cracks around the fasteners
-   Distortion from overtightening
-   Repeated gasket failure

## 🛠️ 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:** 328.89 AUD
- **Vendor:** Volvo Penta
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 328.89 AUD | In stock |

## Images

- 21234084 Cover | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21234084-cover-genuine-volvo-penta)
> Updated: 2026-08-22