# 3842381 Coolant Pipe | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta coolant pipe from the Cooling System group, weighing 1.136 kg and listed for 4 applications on TWD series engines. Coolant pipe 3841787 carries the same TWD fitment count at 1.066 kg, so the two sit only 70 grams apart and must be told apart by number rather than by weight.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta TWD1643GE
-   Volvo Penta TWD1652GE
-   Volvo Penta TWD1653GE
-   Volvo Penta TWD1663GE

-   **Engine Family:** TWD

## ⚙️ Key Features

-   1.136 kg
-   4 applications on TWD series engines
-   Within 70 grams of coolant pipe 3841787 - order by part number
-   Cooling System group

## 🔌 Function

Carries coolant between two parts of the circuit as a rigid run where a hose would chafe or collapse.

## ⚠️ Common Signs of Failure

-   Coolant loss with staining or crusting along the pipe
-   Pinholes or corrosion blisters in the pipe wall
-   Pipe ends corroded or scored where the hoses seal
-   Pipe dented or bent so the hoses will not line up
-   Overheating from internal scaling restricting flow

## 🛠️ Service Notes

-   Renew the hoses, clips and any O-rings at each end when the pipe is changed
-   Check the pipe supports so the new pipe is not carrying vibration on its joints
-   Pressure test and bleed the system after refilling

## 📦 Condition

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

## Details

- **Price:** 1342.03 AUD
- **Vendor:** Volvo Penta
- **Type:** Hoses & Pipes
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 1342.03 AUD | In stock |

## Images

- 3842381 Coolant Pipe | Genuine Volvo Penta Part
- 3842381 Coolant Pipe | Genuine Volvo Penta Part - photo 2 of 2

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/3842381-coolant-pipe-genuine-volvo-penta)
> Updated: 2026-09-19