# 21244966 Coolant Pipe | Genuine Volvo Penta Part

## 🔧 Product Description

A formed cooling-system pipe used around the coolant pump, thermostat housing and turbocharger cooling circuit on selected Volvo Penta D11 marine engines.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta D11A-A
-   Volvo Penta D11A-B
-   Volvo Penta D11A-C
-   Volvo Penta D11A-E
-   Volvo Penta D11A-C MP
-   Volvo Penta D11A-D MP
-   Volvo Penta D11A-E MP

-   **Engine Family:** D

## ⚙️ Key Features

-   Correct factory bends and mounting points
-   Used with coolant-pump and thermostat components
-   replacement component
-   Direct replacement where part number 21244966 is specified
-   Engine type: D11 inline-six turbocharged marine diesel

## 🔌 Function

Routes engine coolant through the pump, thermostat or turbocharger cooling circuit.

## ⚠️ Common Signs of Failure

-   Dried coolant staining
-   Cracked mounting bracket
-   Overheating caused by flow loss

## 🛠️ Service Notes

-   Clean both flanges or spigots and check the sealing lands for pitting and corrosion; renew every O-ring, seal or gasket at the joint rather than reusing one that has taken a set
-   Lubricate coolant-side O-rings with coolant or a rubber-safe lubricant — petroleum oil and grease swell and soften the rubber and end up in the coolant
-   Offer the pipe up and align both ends before pulling any fastener tight, so the joints are not held together by strain from a misaligned pipe or an over-stretched hose
-   Check the bore is clear of scale, sealant and debris before fitting, and inspect the pipe for internal corrosion or thinning if the old one was leaking
-   Refill with the coolant type and mix specified for your engine, bleed the system through, then check the joints again with the engine hot and up to pressure

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   21244966 → Supersedes 21118767 → Supersedes 3888525

### OEM / Related Numbers

-   21118767 earlier number superseded by this part
-   3888525 earlier number superseded by this part
-   3801102 - coolant pump
-   3808593 - thermostat housing
-   3836307 and 3886496 - coolant pipes
-   1547252 and 1547253 - seals
-   1546531 - locking component

## 📦 Condition

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

## Details

- **Price:** 1152.06 AUD
- **Vendor:** Volvo Penta
- **Type:** Hoses & Pipes
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 1152.06 AUD | In stock |

## Images

- 21244966 Coolant Pipe | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21244966-coolant-pipe-genuine-volvo-penta)
> Updated: 2026-09-20