# 20460481 Control Piston | Genuine Volvo Penta Part

🔧 Product Description

  

Genuine Volvo Penta Air-Compressor Control Piston - Part Number: 20460481

  

Control piston used in the compressor unloader/regulating mechanism to respond to system control pressure.

  

⚙️ Key Features

  

• Genuine Volvo Penta air-compressor control piston

• Designed for the pto-a 600cm³ air compressor

• Direct service replacement for Volvo Penta part number 20460481

• Control piston used in the compressor unloader/regulating mechanism to respond to system control pressure

• Catalogued for TAD720VE, TAD721VE, TAD722VE

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 20460481 (Volvo Penta OEM reference)

  

OEM / Related Numbers:

  

• 20460472 - 600cm³ air compressor

• VOE20460481 - Volvo Construction Equipment prefixed number format

• 20460472 - complete 600cm³ PTO-A air compressor

• 20460473 → 20942758 - compressor drive-gear chain

• 20460465 / 20460466 - gear cover and cover O-ring

• 20460467 - housing / coolant O-ring

• 20460469 / 20460471 - support bracket and alignment shim

• 20460474 / 20460475 - drive-gear flange nut and unloader actuator

• 20460476 / 20460477 / 20460478 - head gasket, valve plate and valve disc

• 20460480 / 20460481 - connecting rod and control piston

• 20460501 / 20460502 - semi-rotary pump and O-ring

  

Aftermarket / Verified Equivalents:

  

• No aftermarket equivalent

  

🚤 Compatibility

  

Commonly used on:

  

• Volvo Penta D7D / TAD720-series industrial diesel installations

  

Typically suits:

  

• Engine models:

• TAD720VE

• TAD721VE

• TAD722VE

  

• HP Range: Approximately 237HP - 280HP

• Engine Type: 7.2-litre six-cylinder turbocharged industrial diesel

• Year Range: Approximately 1998 - 2006

  

🔌 Function

  

Control piston used in the compressor unloader/regulating mechanism to respond to system control pressure.

  

Common signs of failure:

  

• Compressor output falls or pressure build-up becomes slow

• Abnormal knocking, rattling or mechanical noise

• Scoring, cracking, distortion or excessive running clearance

• Air, oil or coolant leakage associated with the internal failure

• Metal debris, overheating or seizure during compressor inspection

  

Service / Installation Notes:

  

• Inspect the complete compressor for bore, crank, bearing and valve damage rather than replacing one internal part in isolation

• Confirm that internal components are serviceable separately for the exact compressor version and serial number

  

📦 Condition

  

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging

## Details

- **Price:** 290.54 AUD
- **Vendor:** Volvo Penta
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 290.54 AUD | In stock |

## Images

- 20460481 Control Piston | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/20460481-control-piston-genuine-volvo-penta)
> Updated: 2026-07-30