# 3809925 Pulley | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta extra pulley with 3 grooves on a 165 mm outer diameter, an HC50 V-belt groove and a 90 mm length, weighing 2.576 kg and listed for 153 applications on D series engines. An extra pulley lets auxiliary equipment such as a cooling compressor or hydraulic pump be driven from the crankshaft belt. It supersedes 3584502, previously listed simply as a pulley.

## 🚤 Compatibility

-   **Engine Family:** D
-   **HP Range:** 145-480 HP

Full model list at the end of this description.

## ⚙️ Key Features

-   3 grooves on a 165 mm outer diameter
-   HC50 V-belt groove, 90 mm length
-   2.576 kg
-   153 applications on D series engines
-   Supersedes 3584502
-   Grooves per pulley: 3
-   Length: 90 mm
-   Outer diameter: 165 mm
-   V belt groove: HC50
-   Fits: Volvo Penta engines fitted with a front mounted universal bracket for auxiliary drive

## 🔌 Function

Provides the extra belt grooves needed to drive an auxiliary unit from the power take-off.

## ⚠️ Common Signs of Failure

-   Belt squeal or rapid belt wear
-   Grooves worn shiny, stepped or sharp-edged
-   Pulley running out of true, making the belt wander
-   Vibration or rumble from the power take-off drive
-   Retaining fastener working loose

## 🛠️ Service Notes

-   Extra pulley 3809926 is the multi-V version with 1 groove on the same 165 mm outer diameter and a PK6 groove, and only 115 grams separate the two - order by belt type and groove, not by weight
-   Driving equipment off the crankshaft belt adds load to the crankshaft, so the axial position of the pulley and the position of the driven unit both have to suit the power being taken
-   Fit a new belt with the pulley and set the alignment of the whole drive
-   Maximum power supplied depends on the alignment of the belt, the belt type and the engine type
-   The axial location of the pulley and the position of the driven equipment must suit the power being taken

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   3809925 → Supersedes 3584502

### OEM / Related Numbers

-   3584502 earlier number superseded by this part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 D6-370A-C, D6-350A-A, D6-350A-B, D6-330A-D, D6-330D-E, D6-370D-E, D6-370D-B, D6-330D-B, D6-330A-F, D6-370A-F, D6-370D-A, D6-330D-C, D6-330A-C, D6-370D-C, D6-330D-D, D6-370D-D, D6-330D-F, D6-370A-D, D6-330A-E, D6-370A-E, D6-370D-F, D6-330I-D, D6-310I-B, D6-280I-B, D6-280I-C, D6-280I-D, D6-280I-E, D6-310I-D, D6-435I-D, D6-310I-E, D6-280I-A, D6-310I-A, D6-300A-F, D6-300D-F, D6-300I-F, D6-310D-B, D6-310D-D, D6-310D-C, D6-310D-E, D6-370I-A, D6-370I-B, D6-330I-B, D6-330I-C, D6-370I-C, D6-370I-D, D6-310A-B, D6-280A-C, D6-310A-C, D6-310A-A, D6-280A-D, D6-310A-D, D6-280A-E, D6-310A-E, D6-310I-C, D6-280A-A, D6-280A-B, D6-340I-G, D6-380I-G, D6-440I-G, D6-480I-G, D6-300A-G, D6-340A-G, D6-380A-G, D6-440I-WJ-G, D6-480I-WJ-G, D6-300D-G, D6-340D-G, D6-380D-G, D6-440D-G, D6-480D-G, D6-400A-G, D6-440A-G, D6-300I-G, D6-330I-F, D6-370I-F, D6-400A-E, D6-435D-A, D6-435D-D, D6-435D-E, D6-435D-F, D6-435I-A, D6-435I-C, D6-435I-E, D6-400A-F, D6-435D-C, D6-435I-F, D6-330I-E, D6-370I-E, D6-330A-B, D6-370A-B
-   Volvo Penta D4-260A-B, D4-260A-A, D4-260A-C, D4-260A-D, D4-260A-E, D4-260A-F, D4-260D-B, D4-260D-C, D4-260D-D, D4-260D-E, D4-260D-F, D4-260I-A, D4-260I-B, D4-260I-C, D4-260I-D, D4-260I-E, D4-260I-F, D4-300A-A, D4-300A-C, D4-300A-D, D4-300A-E, D4-300A-F, D4-300D-A, D4-300D-C, D4-300D-D, D4-300D-E, D4-300D-F, D4-300I-A, D4-180I-C, D4-225I-C, D4-180I-D, D4-225I-D, D4-180I-E, D4-225I-E, D4-180I-F, D4-225I-F, D4-210A-A, D4-210A-B, D4-225A-B, D4-225A-C, D4-225A-D, D4-300I-C, D4-300I-D, D4-300I-E, D4-300I-F, D4-225A-E, D4-225A-F, D4-210I-A, D4-210I-B, D4-180I-B, D4-225I-B, D4-175I-G, D4-230I-G, D4-270I-G, D4-320I-G, D4-300I-G, D4-150A-G, D4-230A-G, D4-270A-G, D4-320A-G, D4-300A-G, D4-145I-G, D4-175 VG

## Details

- **Price:** 1059.69 AUD
- **Vendor:** Volvo Penta
- **Type:** Belts, Pulleys & Tensioners
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 1059.69 AUD | In stock |

## Images

- 3809925 Pulley | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/3809925-pulley-genuine-volvo-penta)
> Updated: 2026-09-22