# 3819874 Control Unit | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta control unit marked Kad, from the Ignition and Control Systems group, weighing 1.146 kg and listed for 4 applications across the KAMD and KAD series. It supersedes part number 3817140, which was catalogued earlier as a dataset.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta KAMD44P-B
-   Volvo Penta KAMD44P-C
-   Volvo Penta KAD44P-B
-   Volvo Penta KAD44P-C

-   **Engine Family:** KAMD, KAD

## ⚙️ Key Features

-   Marked Kad
-   1.146 kg
-   Supersedes 3817140, catalogued earlier as a dataset
-   Listed for 4 applications across the KAMD and KAD series

## 🔌 Function

Reads the engine's sensors and controls fuelling and related functions to its programmed settings, holding the engine to its specified behaviour.

## ⚠️ Common Signs of Failure

-   No start, or the engine cutting out with no fuel or air fault found
-   Alarms or codes pointing at the control unit
-   Rough or erratic running, or revs held to a low ceiling
-   No response to diagnostic equipment
-   Corrosion or water ingress in the connector or case

## 🛠️ Service Notes

-   This is the unit marked Kad, and 3819873 is the one marked Kamd - they carry different settings, so the marking is what decides the order
-   Control unit 3819875 shares this exact 1.146 kg weight and the same KAD and KAMD families but carries no marking, so weight will not separate the two - order by part number
-   Check the supply, earth and connector before condemning the unit

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   3819874 → Supersedes 3817140 → Supersedes 874075 → Supersedes 3803466

### OEM / Related Numbers

-   3817140 earlier number superseded by this part
-   874075 earlier number superseded by this part
-   873957 earlier number superseded by this part
-   3803466 earlier number superseded by this part

## 📦 Condition

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

## Details

- **Price:** 6446.99 AUD
- **Vendor:** Volvo Penta
- **Type:** Ignition & Controls
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 6446.99 AUD | In stock |

## Images

- 3819874 Control Unit | Genuine Volvo Penta Part

---

> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/3819874-control-unit-genuine-volvo-penta)
> Updated: 2026-09-21