# 9956174 Connection Flange | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta connection flange from the Cooling System group, weighing 0.174 kg and listed for 4 applications across the THD and DH series. It supersedes 425728, which was catalogued earlier as a connecting flange.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta THD102KB
-   Volvo Penta THD102KD
-   Volvo Penta THD102K-KB
-   Volvo Penta DH10A

-   **Engine Family:** THD, DH

## ⚙️ Key Features

-   0.174 kg
-   Cooling System group
-   Supersedes 425728, previously catalogued as a connecting flange
-   4 applications on THD and DH engines

## 🔌 Function

Provides the bolted, sealed joint where one section of the cooling circuit meets the next.

## ⚠️ Common Signs of Failure

-   Coolant weeping or crusted deposits at the flange joint
-   Flange face corroded, pitted or scored
-   Cracks around the bolt holes
-   Joint not pulling up square, so it will not stop seeping

## 🛠️ Service Notes

-   Renew the sealing components at the joint whenever the flange is disturbed rather than reusing them
-   The name changed at the supersession, so an older list showing connecting flange 425728 points to this number

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   9956174 → Supersedes 425728

### OEM / Related Numbers

-   425728 earlier number superseded by this part

## 📦 Condition

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

## Details

- **Price:** 383.26 AUD
- **Vendor:** Volvo Penta
- **Type:** Cooling System
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 383.26 AUD | In stock |

## Images

- 9956174 Connection Flange | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/9956174-connection-flange-genuine-volvo-penta)
> Updated: 2026-10-10