# 23255533 Cap | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta cap from the Cooling System group, weighing 0.116 kg and listed for 75 applications across D and MD series engines.

## 🚤 Compatibility

-   **Engine Family:** D, MD

Full model list at the end of this description.

## ⚙️ Key Features

-   Cooling system filler cap
-   0.116 kg
-   Listed for 75 applications across D and MD series engines

## 🔌 Function

Seals the coolant filler and holds the system at its working pressure, raising the boiling point and letting coolant flow back from the expansion side as the engine cools.

## ⚠️ Common Signs of Failure

-   Coolant disappearing with no pool or drip to find
-   Steam or coolant escaping around the filler neck
-   Running hot under load, then settling once the cap is loosened
-   Rubber seal on the underside swollen, perished or set hard
-   Pressure valve stuck or its spring weak when the cap is tested

## 🛠️ Service Notes

-   Pressure-test the cap before condemning the expansion tank or the exchanger - a tired cap gives the same symptoms as a leak
-   O-rings 23265130 and 23265133 share this cap's 75-application fitment, so check the assembly for which seals are wanted alongside it
-   Never open a hot system

## 📦 Condition

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

## 🔎 Full Model Compatibility

Typically suits:

-   Volvo Penta D13C3-B MH, D13C1-B MH, D13C4-B MH, D13C2-B MP, D13C1-A MP, D13C2-A MP, D13C3-A MP, D13C4-A MP, D13B-C MH, D13B-G MP, D13B-L MP, D13B-E MH, D13B-E MH (FE), D13B-K MP, D13B-N MH, D13B-N MH (FE), D13B-D MP, D13B-M MP, D13B-C MP, D13C4-B MP, D13C5-B MP, D13C6-A MP, D13C1-A MH, D13C5-A MP, D13C7-B MP, D13C8-B MP, D13C9-A MP
-   Volvo Penta D11C1-A MP, D11C3-A MP, D11C2-A MP, D11C4-A MP, D11B3-A MP, D11B4-A MP, D11A-A, D11A-B, D11A-C, D11A-D, D11A-E, D11B2-A MP, D11A-C MP, D11A-D MP, D11A-E MP, D11B1-A MP
-   Volvo Penta D9A2J, D9A2G, D9A2L MH, D9A2D, D9A2B, D9A2F, D9A2K, D9A2H, D9A2M MP, D9A2A, D9A2C, D9A2E
-   Volvo Penta D8A2-A MP, D8A5-A MH, D8A6-A MH, D8A5-A MG, D8A6-A MG, D8A4-A MP, D8A1-A MP, D8A3-A MP, D8A7-A MP, D8A8-A MP
-   Volvo Penta D7A-B TA, D7A-T, D7A-TA, D7C-B TA, D7C-TA
-   Volvo Penta D5A-B TA, D5A-T, D5A-TA
-   Volvo Penta MD2010, MD2010B

## Details

- **Price:** 128.62 AUD
- **Vendor:** Volvo Penta
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 128.62 AUD | In stock |

## Images

- 23255533 Cap | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/23255533-cap-genuine-volvo-penta)
> Updated: 2026-08-22