# 21489972 Exhaust Manifold | Genuine Volvo Penta Part

## 🔧 Product Description

A water-cooled exhaust manifold used on Volvo Penta D3 marine diesel engines. It collects exhaust gas from the cylinders and directs it to the turbocharger.

## 🚤 Compatibility

-   **Engine Family:** D
-   **HP Range:** 110-220 HP

Full model list at the end of this description.

## ⚙️ Key Features

-   Water-cooled marine exhaust construction
-   Integrated exhaust-port passages
-   Correct D3 turbocharger mounting
-   Designed for the specified gaskets and O-rings
-   Supports D3-D through D3-G engine configurations where specified

## 🔌 Function

The manifold combines cylinder exhaust flow, transfers it to the turbocharger and uses engine coolant to control exhaust-component temperature.

## ⚠️ Common Signs of Failure

-   Soot or coolant leakage
-   Cracks between exhaust and water passages
-   White smoke or coolant loss
-   Exhaust ticking
-   Reduced turbocharger response
-   Corrosion around the outlet or sealing faces

## 🛠️ Service Notes

-   Treat the manifold as a wear item on a raw-water-cooled engine: check the water jacket and gas passages for corrosion, scale and cracks whenever it is off, and replace rather than clean up a casting that is heavily wasted
-   Check the mating faces against a straightedge, renew all gaskets, and renew any studs, nuts or bolts that are corroded
-   Blank off the open ports while the manifold is away so nothing can drop into a cylinder head
-   Tighten the fixings in the sequence and to the figures given in the workshop manual for your engine, and re-check for gas and water leaks once the engine has been up to temperature
-   Inspect the riser, elbow and exhaust hose at the same time; corrosion is rarely confined to one part of the system

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   21489972 → Supersedes 21117071

### OEM / Related Numbers

-   21117071 earlier number superseded by this part
-   21163289 - Turbocharger
-   30777682 - Manifold gasket
-   21252495 - Turbocharger inlet pipe
-   967962 - Plugs
-   948811 - Plugs
-   982292 - O-rings
-   8631549 - Gasket
-   21454204 - Hose
-   961665 - Hose clamps
-   21506563 - Oil pressure pipe
-   995343 - Hollow screws
-   25167 - Hollow screws

### OEM Reman Alternatives

-   3801387 - Remanufactured turbocharger

## 📦 Condition

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

## 🔎 Full Model Compatibility

Typically suits:

-   Volvo Penta D3-220I-G, D3-140A-D, D3-170A-D, D3-200A-D, D3-220A-D, D3-140I-D, D3-140A-E, D3-170A-E, D3-200A-E, D3-220A-E, D3-140I-E, D3-140A-F, D3-170A-F, D3-200A-F, D3-220A-F, D3-140I-F, D3-140A-G, D3-170A-G, D3-200A-G, D3-220A-G, D3-140I-G, D3-110I-D, D3-150I-D, D3-170I-D, D3-200I-D, D3-220I-D, D3-110I-E, D3-150I-E, D3-170I-E, D3-200I-E, D3-220I-E, D3-110I-F, D3-150I-F, D3-170I-F, D3-200I-F, D3-220I-F, D3-110I-G, D3-150I-G, D3-170I-G, D3-200I-G, D3-110I-H, D3-140A-H, D3-170A-H, D3-200A-H, D3-220A-H, D3-150I-H, D3-170I-H, D3-200I-H, D3-220I-H, D3-140I-H

## Details

- **Price:** 2572.53 AUD
- **Vendor:** Volvo Penta
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 2572.53 AUD | In stock |

## Images

- 21489972 Exhaust Manifold | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21489972-exhaust-manifold-genuine-volvo-penta)
> Updated: 2026-08-22