# 3857681 Cap | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta cap from the Engine group, weighing 63.5 grams and listed for 18 DPX applications.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta 8.1Gi-B
-   Volvo Penta 8.1Gi-BF
-   Volvo Penta 8.1GiI-A
-   Volvo Penta 8.1GiI-B
-   Volvo Penta 8.1GSi-A
-   Volvo Penta 8.1GSiI-A
-   Volvo Penta 8.1GXi-A
-   Volvo Penta 8.1GXi-AF
-   Volvo Penta 8.1GXiI-A
-   Volvo Penta 7.4GiPEFS
-   Volvo Penta 7.4GiPBYCCE
-   Volvo Penta 7.4GiPWTR
-   Volvo Penta DPX420-A
-   Volvo Penta DPX420-B
-   Volvo Penta DPX420-BF
-   Volvo Penta DPX375-A
-   Volvo Penta DPX375-B
-   Volvo Penta DPX375-BF

-   **Engine Family:** DPX

## ⚙️ Key Features

-   63.5 g
-   18 DPX applications
-   Engine group
-   Quantity varies by assembly, most commonly 16

## 🔌 Function

Closes and seals an opening on the engine, holding pressure or keeping oil in and dirt out.

## ⚠️ Common Signs of Failure

-   Seepage or a damp trail below the cap
-   Sealing ring perished, flattened or missing
-   Cap distorted, cracked or its thread damaged
-   Cap loose in service or found blown off

## 🛠️ Service Notes

-   Renew the sealing ring with the cap and check the face it seats against for pitting
-   Fit it to the published figure — most caps of this sort leak because they have been overtightened and distorted

## 📦 Condition

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

## Details

- **Price:** 88.54 AUD
- **Vendor:** Volvo Penta
- **Type:** Engine Components
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 88.54 AUD | In stock |

## Images

- 3857681 Cap | Genuine Volvo Penta Part
- 3857681 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/3857681-cap-genuine-volvo-penta)
> Updated: 2026-10-11