# 3847674 Adapter | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta adapter from the Inlet and Exhaust System group, stepping an M18 x 1.5 thread to M14 x 1.5, weighing 0.039 kg and listed for 5 applications on TWD series engines. The thread sizes are what decide the order.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta TWD1643GE
-   Volvo Penta TWD1652GE
-   Volvo Penta TWD1653GE
-   Volvo Penta TWD1663GE
-   Volvo Penta TWD1682-83GE

-   **Engine Family:** TWD

## ⚙️ Key Features

-   M18 x 1.5 to M14 x 1.5
-   0.039 kg
-   5 applications on TWD series engines

## 🔌 Function

Lets a component with an M14 x 1.5 thread be fitted into an M18 x 1.5 tapping, sealing both joints as it does so.

## ⚠️ Common Signs of Failure

-   Weeping or blow at either end of the adapter
-   Thread galled, crossed or stripped at one end
-   Sealing face damaged, so the joint will not pull up
-   Adapter cracked from over-tightening or from load put on the fitting

## 🛠️ Service Notes

-   Check both thread sizes before ordering — this adapter is the M18 x 1.5 to M14 x 1.5 step
-   Renew the sealing washer and hold the adapter with a spanner while tightening the component into it

## 📦 Condition

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

## Details

- **Price:** 99.52 AUD
- **Vendor:** Volvo Penta
- **Type:** Inlet & Exhaust
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 99.52 AUD | In stock |

## Images

- 3847674 Adapter | Genuine Volvo Penta Part
- 3847674 Adapter | Genuine Volvo Penta Part - photo 2 of 2

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/3847674-adapter-genuine-volvo-penta)
> Updated: 2026-10-09