# 861388 Adapter | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta adapter from the Instruments group, weighing 0.102 kg and listed for 18 applications across D and MD series engines. It supersedes part number 873155, as does hollow screw 861389, so an order raised against that old number may need both parts.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta D2-55
-   Volvo Penta D2-55B
-   Volvo Penta MD2010
-   Volvo Penta MD2010B
-   Volvo Penta MD2010-C
-   Volvo Penta MD2010-D
-   Volvo Penta MD2020
-   Volvo Penta MD2020B
-   Volvo Penta MD2020-C
-   Volvo Penta MD2020-D
-   Volvo Penta MD2030
-   Volvo Penta MD2030B
-   Volvo Penta MD2030-C
-   Volvo Penta MD2030-D
-   Volvo Penta MD2040
-   Volvo Penta MD2040B
-   Volvo Penta MD2040-C
-   Volvo Penta MD2040-D

-   **Engine Family:** D, MD
-   **HP Range:** 55 HP

## ⚙️ Key Features

-   0.102 kg
-   18 applications across D and MD engines
-   Supersedes 873155
-   Hollow screw 861389 supersedes the same old number
-   Also supersedes Volvo part number 873138

## 🔌 Function

Provides the threaded take-off point that an instrument sender or gauge line screws into.

## ⚠️ Common Signs of Failure

-   Weeping or seepage at the adapter's joint face
-   Gauge reading erratically or dropping to zero
-   Thread damaged, crossed or corroded
-   Adapter turning in its housing instead of holding

## 🛠️ Service Notes

-   Check whether you also need hollow screw 861389, since both current parts replace 873155
-   Renew the sealing washer at the joint rather than reusing it

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   861388 → Supersedes 873155

## 📦 Condition

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

## Details

- **Price:** 314.07 AUD
- **Vendor:** Volvo Penta
- **Type:** Instruments & Gauges
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 314.07 AUD | In stock |

## Images

- 861388 Adapter | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/861388-adapter-genuine-volvo-penta)
> Updated: 2026-10-11