# 11039663 Manifold | Genuine Volvo Penta Part

## 🔧 Product Description

This is a genuine Volvo Penta manifold, OEM part number 11039663, for D13C series marine diesel engines. It serves as the shared distribution body that routes flow between the engine's cylinder ports and the connected system, providing the sealed mating surfaces and mounting points required for correct assembly. It is specified for the D13C3-A MP through D13C6-A MP inboard marine applications.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta D13C3-A MP
-   Volvo Penta D13C4-A MP
-   Volvo Penta D13C5-A MP
-   Volvo Penta D13C6-A MP

-   **Engine Family:** D

## ⚙️ Key Features

-   Genuine Volvo Penta OEM part number 11039663
-   Fits D13C series marine diesel engines (D13C3-A MP through D13C6-A MP)
-   Component-level replacement manifold supplied as an individual part
-   Manufactured to original Volvo Penta specification for correct port and flange alignment
-   System type: Electrical wiring branch / junction manifold

## 🔌 Function

The manifold collects and distributes flow across multiple cylinder ports through a single common passage, linking the cylinder head to the rest of the system. It maintains a sealed, correctly aligned path so each cylinder sees consistent conditions.

## ⚠️ Common Signs of Failure

-   Visible cracks or fractures in the manifold body, often near flanges or port transitions
-   Leakage or staining at the gasket joints and mating flanges
-   Corrosion, pitting or scaling that thins the casting or blocks internal passages
-   Warped or eroded sealing faces that prevent a gasket from sealing after reassembly
-   Uneven cylinder performance or pressure loss traced to internal restriction or a breached passage

## 🛠️ Service Notes

-   A manifold is a distribution casting, so every port and joint has to seal — renew all gaskets, seals and sealing washers on refitting rather than reusing the old ones
-   Clean both mating faces back to bare metal and check the flanges for flatness, cracks and corrosion pitting; a distorted flange will not pull down onto a new gasket
-   Make sure the internal passages are clear of scale, carbon and debris before fitting, and blank the open ports while the manifold is off the engine
-   Draw the fasteners down progressively in the sequence and to the torque given in the workshop manual for your engine, then recheck after the first heat cycle if the manual asks for it
-   On any manifold carrying raw water or exhaust gas, inspect the internal waterways at the same time — these castings corrode from the inside out and can look sound outside while the passages are wasted

## 🔄 Supersession & Cross Reference

### OEM / Related Numbers

-   Volvo Penta ZF400A reverse-gear harness manifold
-   3963412 related connector housing
-   11039671 related cable terminal

### Other-Brand OEM Numbers

-   VOE11039663

## 📦 Condition

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

## Details

- **Price:** 12.5 AUD
- **Vendor:** Volvo Penta
- **Type:** Inlet & Exhaust
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 12.50 AUD | In stock |

## Images

- 11039663 Manifold | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/11039663-manifold-genuine-volvo-penta)
> Updated: 2026-10-21