# 21940713 Adapter | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta Y-shaped reducing adapter for 10 mm connections, from the Cooling System group, listed for three HPCU and TB applications. The Y shape and 10 mm size are the defining details, since the adapter splits or combines a flow path and must match the connected hose bore.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta HPCU-A
-   Volvo Penta TB66-A
-   Volvo Penta TB66-150-A

-   **Engine Family:** HPCU, TB

## ⚙️ Key Features

-   Y-shaped reducing adapter
-   10 mm connection
-   0.012 kg
-   Listed for three applications across HPCU and TB installations
-   Must match the bore of the hose it connects

## 🔌 Function

Splits one flow path into two, or joins two into one, and steps the connection down to 10 mm at the reduced end.

## ⚠️ Common Signs of Failure

-   Weeping or dripping at one of the three connections
-   Adapter cracked at the branch
-   Hose ends split where they have been forced onto the wrong size spigot
-   Clips loose or corroded
-   Flow restricted by debris caught at the branch

## 🛠️ Service Notes

-   Match the hose bore to the 10 mm connection - a hose stretched onto the wrong spigot will not seal and splits at the end
-   Support the adapter so the branch is not carrying the weight of the hoses

## 🔄 Supersession & Cross Reference

### Other-Brand OEM Numbers

-   VOE21940713

## 📦 Condition

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

## Details

- **Price:** 33.53 AUD
- **Vendor:** Volvo Penta
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 33.53 AUD | In stock |

## Images

- 21940713 Adapter | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21940713-adapter-genuine-volvo-penta)
> Updated: 2026-08-22