# 3581053 Pulley | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta extra pulley with 1 groove on a 120 mm outer diameter, an HC50 V-belt groove and a 19 mm length - the smallest of the three extra pulleys listed. It weighs 0.510 kg and covers 14 applications across D and MD series engines. An extra pulley lets auxiliary equipment such as a cooling compressor or hydraulic pump be driven from the crankshaft belt.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta D2-55
-   Volvo Penta D2-55B
-   Volvo Penta D2-55C
-   Volvo Penta D2-55D
-   Volvo Penta D2-55E
-   Volvo Penta D2-55F
-   Volvo Penta D2-50F
-   Volvo Penta D2-75
-   Volvo Penta D2-75B
-   Volvo Penta D2-75C
-   Volvo Penta D2-75F
-   Volvo Penta D2-60F
-   Volvo Penta MD2040-C
-   Volvo Penta MD2040-D

-   **Engine Family:** D, MD
-   **HP Range:** 50-75 HP

## ⚙️ Key Features

-   1 groove on a 120 mm outer diameter
-   HC50 V-belt groove, 19 mm length
-   0.510 kg
-   14 applications across D and MD series engines
-   Grooves per pulley: 1
-   Length: 19 mm
-   Outer diameter: 120 mm
-   V belt groove: HC50
-   Fits: Volvo Penta engines fitted with a front mounted universal bracket for auxiliary drive

## 🔌 Function

Provides an additional belt drive take-off from the engine.

## ⚠️ Common Signs of Failure

-   Belt squeal or rapid belt wear from a worn groove
-   Runout or wobble causing belt tracking problems
-   Cracking at the hub or bolt holes
-   Corrosion in the belt groove
-   Fixings loosened by vibration

## 🛠️ Service Notes

-   Groove profile and diameter must match the belt - this is a single HC50 groove at 120 mm outer diameter, against 165 mm for pulleys 3809925 and 3809926
-   Auxiliary equipment driven off the crankshaft belt loads the crankshaft, so the axial position of the pulley and the position of the driven unit must suit the power taken
-   Spacer disc 3581083 is catalogued for use when an extra pulley is mounted, so check whether it is needed
-   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

## 📦 Condition

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

## Details

- **Price:** 444.96 AUD
- **Vendor:** Volvo Penta
- **Type:** Belts, Pulleys & Tensioners
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 444.96 AUD | In stock |

## Images

- 3581053 Pulley | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/3581053-pulley-genuine-volvo-penta)
> Updated: 2026-10-12