# 838897 Cap | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta cap from the Cooling System group, weighing 0.141 kg and listed for a single application on an MD series engine.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta MD31A

-   **Engine Family:** MD

## ⚙️ Key Features

-   0.141 kg
-   Listed for one MD series application
-   Cooling system cap

## 🔌 Function

Closes an opening in the cooling system, sealing it against coolant pressure while allowing access for service.

## ⚠️ Common Signs of Failure

-   Coolant weeping or steaming from under the cap
-   Coolant loss with no visible leak elsewhere
-   Sealing face or gasket hardened, cracked or missing
-   Cap or its thread corroded or distorted
-   Engine running hot because pressure is not being held

## 🛠️ Service Notes

-   Confirm the engine before ordering — this cap is listed for only one application
-   Clean the seat and renew the seal so the system holds its working pressure

## 📦 Condition

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

## Details

- **Price:** 130.71 AUD
- **Vendor:** Volvo Penta
- **Type:** Cooling System
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 130.71 AUD | In stock |

## Images

- 838897 Cap | Genuine Volvo Penta Part
- 838897 Cap | Genuine Volvo Penta Part - photo 2 of 2

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/838897-cap-genuine-volvo-penta)
> Updated: 2026-10-11