# 3851859 Spark Plug Kit | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta spark plug kit for GL/GS engines, from the Ignition and Control Systems group, weighing 0.270 kg and listed for 9 applications. It supersedes part numbers 3851840 and 876046.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta 4.3GIPNCACE
-   Volvo Penta 4.3GIPNCMCE
-   Volvo Penta 4.3GLMMDA
-   Volvo Penta 4.3GLPMDA
-   Volvo Penta 4.3GLPNCA
-   Volvo Penta 4.3GSPNCA
-   Volvo Penta 4.3GSPNCM
-   Volvo Penta 4.3GSJNCS
-   Volvo Penta 4.3GSPMDA

## ⚙️ Key Features

-   For GL/GS engines
-   0.270 kg
-   Supersedes 3851840 and 876046
-   9 applications
-   Also supersedes Volvo part number 875817

## 🔌 Function

Supplies the spark plugs that ignite the compressed fuel and air charge in each cylinder.

## ⚠️ Common Signs of Failure

-   Misfire or rough running, worst under load
-   Hard starting when cold or damp
-   Uneven cylinder contribution felt as vibration at idle
-   Electrodes worn or gap closed up on strip-down
-   Fouled or oil-wetted insulator noses

## 🛠️ Service Notes

-   Kit 3851860 is also marked GL/GS but weighs 0.742 kg against 0.270 kg here, so the two hold different plug counts even though the note reads the same - order by part number
-   The narrow 9-application listing here against 81 for 3851860 is the better guide to which of the two suits your engine

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   3851859 → Supersedes 3851840

### OEM / Related Numbers

-   876046 earlier number superseded by this part
-   3851840 earlier number superseded by this part

### Other-Brand OEM Numbers

-   Champion: 18 / RV15YC4
-   NGK: 2527 / BPR4FS
-   ACDelco: 41-905
-   Bosch: 0 242 225 560

## 📦 Condition

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

## Details

- **Price:** 52.82 AUD
- **Vendor:** Volvo Penta
- **Type:** Service & Repair Kits
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 52.82 AUD | In stock |

## Images

- 3851859 Spark Plug Kit | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/3851859-spark-plug-kit-genuine-volvo-penta)
> Updated: 2026-10-08