# 21257669 Inlet Silencer | Genuine Volvo Penta Part

🔧 Product Description

  

Genuine Volvo Penta D11 Supercharger Inlet Silencer - Part Number: 21257669

  

Genuine intake silencer used in the supercharger air system of Volvo Penta D11 marine diesel engines.

  

⚙️ Key Features

  

• Genuine Volvo Penta inlet silencer

• Reduces supercharger intake noise

• Maintains unrestricted air supply

• Correct D11 mounting and connection profile

• Used with air outlet 21162922 and supercharger 21145185

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• Current OEM reference: 21257669

  

OEM / Related Numbers:

  

• 21257669

  

Related Components:

  

• Air Outlet: 21162922

• Gasket: 21308577

• Supercharger: 21145185

• Pipe: 21257650

• Pipe: 21257648

• V-Ribbed Belt: 981021

  

Aftermarket / Verified Equivalents:

  

• No aftermarket equivalent

  

🚤 Compatibility

  

Confirmed engines:

  

• D11A-A

• D11A-B

• D11A-C MP

• D11A-C IPS

  

🔌 Function

  

The silencer reduces intake pulsation and supercharger noise while supplying the engine with a stable airflow path.

  

Common signs of failure:

  

• Increased intake noise

• Cracked housing

• Restricted airflow

• Loose connections

• Dust entry

• Reduced engine power or black smoke

• Rattling from internal damage

  

📦 Condition

  

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging

## Details

- **Price:** 2945.5 AUD
- **Vendor:** Volvo Penta
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 2945.50 AUD | In stock |

## Images

- 21257669 Inlet Silencer | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21257669-inlet-silencer-genuine-volvo-penta)
> Updated: 2026-08-02