# 21412904 Inlet Manifold | Genuine Volvo Penta Part

## 🔧 Product Description

Cast intake manifold for the Volvo Penta TWD1643GE generating-set engine. It distributes charge air from the connecting pipe and charge-air cooler evenly to the cylinder-head intake ports while providing the correct mounting points for sensors, gaskets and associated air-system hardware.

## 🚤 Compatibility

-   **Engine Family:** D, TWD

Full model list at the end of this description.

## ⚙️ Key Features

-   Genuine Volvo Penta TWD1643GE inlet manifold
-   Cast manifold matched to the 16-litre engine air system
-   Distributes charge air evenly across all cylinders
-   Correct sensor, flange and gasket interfaces
-   Direct replacement for a cracked or damaged original manifold
-   Engine type: Volvo Penta 16-litre inline six-cylinder industrial diesel

## 🔌 Function

Receives compressed and cooled intake air and divides it evenly among the engine cylinders.

## ⚠️ Common Signs of Failure

-   Boost leakage at the manifold or gaskets
-   Cracks or porosity in the casting
-   Oil mist or soot tracking around flange joints
-   Uneven cylinder performance caused by air leakage
-   Damaged sensor ports or mounting threads

## 🛠️ Service Notes

-   Blank the open ports as soon as the manifold is off, so nothing can drop into a cylinder or the head while it is away
-   Clean both mating faces without scoring them, check the manifold for flatness, cracks and corrosion, and fit new gaskets and seals throughout
-   Clean out oil, soot and carbon deposits from the manifold interior before refitting, and look at the crankcase breather arrangement if the build-up is heavy — refitting a fouled manifold puts the restriction straight back
-   Tighten the fasteners evenly, working outwards from the centre in stages to the figures given in the workshop manual for your engine
-   Refit and check all charge air, breather and sensor connections and their clips; an air leak on a pressure-charged inlet shows up as lost power and smoke rather than an audible leak

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   21412904 → Supersedes 21161014 → Supersedes 3595067 → Supersedes 3887300 → Supersedes 3841085

### OEM / Related Numbers

-   21161014 earlier number superseded by this part
-   3595067 earlier number superseded by this part
-   3887300 earlier number superseded by this part
-   3883827 earlier number superseded by this part
-   3841085 earlier number superseded by this part
-   20794356 - associated inlet-manifold gasket family
-   Charge-air pipe and adapter components must be matched to the TWD1643GE configuration

## 📦 Condition

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

## 🔎 Full Model Compatibility

Typically suits:

-   Volvo Penta D16C-A MG, D16C-A MH, D16C-B MH, D16C-C MH, D16C1-E MG, D16C1-F MG, D16C2-E MG, D16C2-F MG, D16C-D MH, D16C1-E MH, D16C1-F MH, D16C2-E MH, D16C2-F MH
-   Volvo Penta TWD1683GE-B, TWD1683VE
-   Volvo Penta TWD1643GE
-   Volvo Penta TWD1644-45GE
-   Volvo Penta TWD1652GE
-   Volvo Penta TWD1653GE
-   Volvo Penta TWD1663GE
-   Volvo Penta TWD1672-1673GE
-   Volvo Penta TWD1682-83GE
-   Volvo Penta TWD1744GE

## Details

- **Price:** 3611.29 AUD
- **Vendor:** Volvo Penta
- **Type:** Inlet & Exhaust
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 3611.29 AUD | In stock |

## Images

- 21412904 Inlet Manifold | Genuine Volvo Penta Part
- 21412904 Inlet Manifold | Genuine Volvo Penta Part - photo 2 of 2

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21412904-inlet-manifold-genuine-volvo-penta)
> Updated: 2026-10-10