# 3825445 Coolant Pipe | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta coolant pipe for the oil cooler to heat exchanger run, from the Cooling System group, weighing 1.379 kg and listed for 3 applications across the TMD and TAMD series engines. It supersedes part number 846237, which was catalogued earlier as a tube.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta TMD122A
-   Volvo Penta TAMD122A
-   Volvo Penta TAMD122A/C

-   **Engine Family:** TMD, TAMD

## ⚙️ Key Features

-   Oil cooler to heat exchanger run
-   Supersedes 846237, catalogued earlier as a tube
-   1.379 kg
-   3 applications across TMD and TAMD

## 🔌 Function

Carries coolant between the oil cooler and the heat exchanger so heat picked up from the engine oil is passed to the cooling circuit.

## ⚠️ Common Signs of Failure

-   Coolant loss with staining or crusting along the pipe
-   Oil temperature running higher than usual
-   Pinholes, blisters or erosion in the pipe wall
-   Perished or swollen hoses at the pipe ends
-   Weeping joints that will not reseal on retightening

## 🛠️ Service Notes

-   An engine listed against the old tube number 846237 takes this pipe instead
-   Coolant pipe 3825443 covers the sea water pump to heat exchanger leg for TMD122A, so check which run you need
-   Renew the hoses, clamps and seals with the pipe and pressure-test the circuit afterwards

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   3825445 → Supersedes 846237

### OEM / Related Numbers

-   846237 earlier number superseded by this part

## 📦 Condition

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

## Details

- **Price:** 1615.67 AUD
- **Vendor:** Volvo Penta
- **Type:** Hoses & Pipes
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 1615.67 AUD | In stock |

## Images

- 3825445 Coolant Pipe | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/3825445-coolant-pipe-genuine-volvo-penta)
> Updated: 2026-09-06