# 21444304 Adapter | Genuine Volvo Penta Part

## 🔧 Product Description

A precision adapter used within the heat-exchanger and engine-cooling circuit on selected closed-cooled Volvo Penta V8 marine petrol engines. It is separately configured from adapter 21444305.

## 🚤 Compatibility

-   **Engine Family:** V
-   **HP Range:** 225-320 HP

Full model list at the end of this description.

## ⚙️ Key Features

-   Genuine Volvo Penta cooling-system adapter
-   Correct factory thread and sealing profile
-   Used with heat exchanger 21444263
-   Resistant to coolant and seawater exposure
-   Separately configured from adapter 21444305
-   Engine type: V8 EFI marine petrol

## 🔌 Function

Provides the required connection between the heat exchanger, engine block or cooling-system hose.

## ⚠️ Common Signs of Failure

-   Hose no longer seals correctly
-   Repeated O-ring failure

## 🛠️ Service Notes

-   Check the adapter against both of the parts it has to join before fitting — adapters are specific to an engine and its variant, and one that is close but not correct will not seat or seal properly
-   Clean and inspect both mating faces or connector ends; grit, old sealant or corrosion on one side is the usual reason an adapted joint leaks or works intermittently
-   Renew any O-ring, gasket or sealing washer belonging to the joint rather than reusing the old one, and lubricate rubber seals lightly so they slide into place instead of rolling or nipping
-   Tighten threaded adapters to the figure given in the workshop manual for that connection; many go into aluminium or onto a soft seat and will distort if pulled up hard
-   Where the adapter is a workshop tool, check it for thread wear and damage before use and never modify it to make something fit

## 🔄 Supersession & Cross Reference

### OEM / Related Numbers

-   21444305 - complementary adapter
-   21444263 - heat exchanger
-   21444232 and 21444236 - hoses
-   21411368 - related O-ring

## 📦 Condition

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

## 🔎 Full Model Compatibility

Typically suits:

-   Volvo Penta V8-270-C-B, V8-270-CE-B, V8-300-C-A, V8-300-CE-A, V8-300-C-B, V8-320-C-B, V8-320-CE-B, V8-300-CE-B, V8-320-C-A, V8-320-CE-A, V8-225-C-A, V8-225-CE-A, V8-225-C-B, V8-225-CE-B, V8-270-C-A, V8-270-CE-A
-   Volvo Penta 5.7GXiC-320-R, 5.7GXiCE-320-R, 5.7GXiC-P, 5.7GXiCE-P, 5.7GiC-300-P, 5.7GiCE-300-P, 5.7GiC-300-R, 5.7GiCE-300-R, 5.0GiC-225-S, 5.0GiCE-225-S, 5.0GXiC-P, 5.0GXiCE-P, 5.0GXiC-270-R, 5.0GXiCE-270-R

## Details

- **Price:** 9.97 AUD
- **Vendor:** Volvo Penta
- **Type:** Cooling System
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 9.97 AUD | In stock |

## Images

- 21444304 Adapter | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21444304-adapter-genuine-volvo-penta)
> Updated: 2026-09-06