# 874125 Electronic Unit | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta electronic unit for installations with two or more stations, from the Engine Controls group. It weighs 0.678 kg, covers 14 applications across the TAMD, KAMD and KAD series, and consolidates two earlier numbers, 874317 and 873973, the latter catalogued earlier as a spare parts kit. The two-or-more-stations note is the detail that decides the order.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta TAMD75P-A
-   Volvo Penta TAMD73P-A
-   Volvo Penta TAMD74P-A
-   Volvo Penta TAMD74P-B
-   Volvo Penta TAMD122P-B
-   Volvo Penta TAMD122P-C
-   Volvo Penta TAMD74C-A
-   Volvo Penta TAMD74C-B
-   Volvo Penta TAMD74L-A
-   Volvo Penta TAMD74L-B
-   Volvo Penta KAMD44P-C
-   Volvo Penta KAD300-A
-   Volvo Penta KAD44P-C
-   Volvo Penta KAMD300-A

-   **Engine Family:** TAMD, KAMD, KAD

## ⚙️ Key Features

-   For two or more stations
-   0.678 kg
-   14 applications across TAMD, KAMD and KAD engines
-   Supersedes 874317 and 873973
-   873973 was catalogued earlier as a spare parts kit
-   Also supersedes Volvo part number 873915

## 🔌 Function

Manages the transfer of engine control between steering positions in a multi-station installation.

## ⚠️ Common Signs of Failure

-   Control not transferring between stations, or transferring on its own
-   Station in command showing at the wrong position
-   Engine not responding to the lever at one station
-   Unit resetting or dropping out when hot
-   Corrosion or water marks inside the connector

## 🛠️ Service Notes

-   Expect a complete unit rather than a kit if you are ordering against 873973
-   Check the station changeover wiring and the branch cabling before replacing the unit

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   874125 → Supersedes 874317 → Supersedes 873873 → Supersedes 873775 → Supersedes 873652

### OEM / Related Numbers

-   873973 earlier number superseded by this part
-   874317 earlier number superseded by this part
-   873873 earlier number superseded by this part
-   873775 earlier number superseded by this part
-   873652 earlier number superseded by this part

## 📦 Condition

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

## Details

- **Price:** 3318.48 AUD
- **Vendor:** Volvo Penta
- **Type:** Engine Controls
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 3318.48 AUD | In stock |

## Images

- 874125 Electronic Unit | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/874125-electronic-unit-genuine-volvo-penta)
> Updated: 2026-09-19