# 3857879 Valve | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta valve in the Standard size, from the Engine group, weighing 0.109 kg and listed for 22 applications. It supersedes part number 856961.

## 🚤 Compatibility

Full model list at the end of this description.

## ⚙️ Key Features

-   Standard size
-   0.109 kg
-   Supersedes 856961
-   Listed for 22 applications
-   4 used per assembly

## 🔌 Function

Seals the port in the cylinder head against combustion pressure and lifts off its seat to let gas through, guided by its stem and closed by the valve spring.

## ⚠️ Common Signs of Failure

-   Compression down on one cylinder, with hard starting or a misfire
-   Tapping or ticking from the valve gear
-   Seating face burnt, pitted or receded on strip-down
-   Stem worn or scored where it runs in the guide
-   Blue smoke on start-up from oil past a worn guide

## 🛠️ Service Notes

-   Valve spring 3857898 and push rod 3857899 carry the same 22 applications and are the natural companions on a head overhaul
-   Check the seat and guide before condemning the valve, and reset clearances once it is in

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   3857879 → Supersedes 856961

### OEM / Related Numbers

-   856961 earlier number superseded by this part

## 📦 Condition

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

## 🔎 Full Model Compatibility

Typically suits:

-   Volvo Penta 3.0GLM-A, 3.0GLM-B, 3.0GLM-C, 3.0GLP-A, 3.0GLP-B, 3.0GLP-C, 3.0GLP-D, 3.0GLP-E, 3.0GLP-J, 3.0GLP-N, 3.0GSM-A, 3.0GSM-B, 3.0GSMBYMCE, 3.0GSM-C, 3.0GSMWTR, 3.0GSP-A, 3.0GSP-B, 3.0GSP-C, 3.0GSPEFS, 3.0GSPWTR, 3.0GXiC-J, 3.0GXi-J

## Details

- **Price:** 129.5 AUD
- **Vendor:** Volvo Penta
- **Type:** Engine Components
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 129.50 AUD | In stock |

## Images

- 3857879 Valve | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/3857879-valve-genuine-volvo-penta)
> Updated: 2026-09-06