# 21504807 Pipe | Genuine Volvo Penta Part

## 🔧 Product Description

A formed coolant pipe used in the expansion-tank circuit of the Volvo Penta D13B-E MG (FE) cooling system.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta D13C3-B MH
-   Volvo Penta D13C1-B MH
-   Volvo Penta D13B-E MG
-   Volvo Penta D13B-E MG (FE)
-   Volvo Penta D13B-E MH
-   Volvo Penta D13B-E MH (FE)
-   Volvo Penta D13B-N MH
-   Volvo Penta D13B-N MH (FE)
-   Volvo Penta D13C1-A MH
-   Volvo Penta D13C1-B MG
-   Volvo Penta D13C3-B MG
-   Volvo Penta D13C1-A MG

-   **Engine Family:** D

## ⚙️ Key Features

-   Genuine Volvo Penta expansion-tank pipe
-   Works with air vent pipe 21505623
-   Compatible with the original tank, sensor and pressure-cap arrangement
-   Engine type: D13 inline-six turbocharged marine generating-set diesel

## 🔌 Function

Carries coolant between the engine cooling circuit and the expansion tank.

## ⚠️ Common Signs of Failure

-   Cracking near a support or union
-   Falling coolant level

## 🛠️ Service Notes

-   Offer the pipe up and check it reaches both connections freely before you tighten anything — a rigid pipe pulled into place is a pipe left under permanent strain, and strained pipes crack at the fittings in service
-   Renew the sealing washers, O-rings or union seals that go with the pipe rather than reusing the old ones, and make sure the seats, faces and threads are clean
-   Keep the ends capped while you work and blow or flush a pipe through before fitting; anything left inside goes straight into the oil, fuel or coolant system
-   Tighten unions and banjo bolts evenly to the figures in the workshop manual for your engine — overtightening distorts the seat and starts the leak you were trying to cure
-   Refit every clip and support bracket in its original place and keep the pipe clear of hot or moving parts so it cannot chafe or be shaken to failure

## 🔄 Supersession & Cross Reference

### OEM / Related Numbers

-   21505623 - air vent pipe
-   21366063 - related pipe
-   21381313 - water pipe
-   3885197, 21505289, 21920925, 21920930, 23127056 and 23360152 - expansion-tank references
-   3588990, 21416784 and 21872119 - level sensors
-   1674083 and 23321023 - pressure caps

## 📦 Condition

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

## Details

- **Price:** 1336.81 AUD
- **Vendor:** Volvo Penta
- **Type:** Hoses & Pipes
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 1336.81 AUD | In stock |

## Images

- 21504807 Pipe | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21504807-pipe-genuine-volvo-penta)
> Updated: 2026-10-08