# 21451470 Hose | Genuine Volvo Penta Part

## 🔧 Product Description

A formed coolant hose used around the expansion tank, heat exchanger or engine connection on selected Volvo Penta closed-cooled V8 marine petrol engines.

## 🚤 Compatibility

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

Full model list at the end of this description.

## ⚙️ Key Features

-   Genuine Volvo Penta coolant hose
-   Designed for the full closed-cooling system
-   Correct moulded bends and end diameters
-   Resistant to hot pressurised coolant
-   Works with heat exchanger 21444263
-   Engine type: V8 EFI marine petrol

## 🔌 Function

Transfers coolant between the heat exchanger, expansion tank or engine cooling passage.

## ⚠️ Common Signs of Failure

-   Hose cracking or swelling
-   Coolant smell in the engine compartment
-   Hose softening or internal collapse

## 🛠️ Service Notes

-   Fit hoses only to clean, sound spigots — take off old rubber, scale and corrosion, and renew the spigot or pipe if it is pitted, because no clamp will seal a rough sealing face
-   Push the hose fully home so the clamp sits behind the bead or barb rather than over the end of the spigot, and fit new clamps whenever a hose is renewed
-   Let the hose follow its natural bend with no kinks and no tension on either connection, clear of hot surfaces and moving parts, with chafe protection wherever it passes a bracket, edge or bulkhead
-   Use the correct grade of hose for the duty, and clamp to the standard the installation demands — twin clamps are normal practice on seawater and fuel connections below the waterline
-   Refill, vent and run the engine, then check every joint hot and cold and recheck the clamps after the first running period as the hose beds down

## 🔄 Supersession & Cross Reference

### OEM / Related Numbers

-   21444263 - heat exchanger
-   21429093 - expansion tank
-   3860590 - related fitting or hose
-   21338633 - related hose
-   1674083 - pressure cap

## 📦 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:** 29.07 AUD
- **Vendor:** Volvo Penta
- **Type:** Hoses & Pipes
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 29.07 AUD | In stock |

## Images

- 21451470 Hose | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21451470-hose-genuine-volvo-penta)
> Updated: 2026-10-08