# 20924435 Valve Stem Seal | Genuine Volvo Penta Part

🔧 Product Description

  

Genuine Volvo Penta Valve-Stem Oil Seal - Part Number: 20924435

  

OEM sealing component used in the d11/tad11 cylinder-head valve-guide and stem-sealing assembly. It restores the intended fluid-, air- or gas-tight interface when the adjoining parts are serviced.

  

⚙️ Key Features

  

• Manufactured to the original Volvo Penta dimensional and material specification

• Maintains correct fit, alignment and service access

• Designed for diesel-engine heat, vibration and operating load

• Direct replacement for a worn, damaged or missing original component

• Must be matched by part number, engine product and serial/configuration

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 20924435 (OEM catalogue reference)

  

OEM / Related Numbers:

  

• Cylinder head, inlet valve, exhaust valve and valve-seat inserts

• Valve spring, retainer, collets and thrust washer

  

Aftermarket / Verified Equivalents:

  

• No aftermarket equivalent

  

🚤 Compatibility

  

Commonly used on:

  

• D11/TAD11 cylinder-head valve-guide and stem-sealing assembly

  

Typically suits:

  

• Engine models:

• TAD1140VE; TAD1141VE; TAD1142VE; TAD1150VE; TAD1151VE; TAD1152VE

• HP Range: Approximately 375-550 HP, depending on engine rating

• Engine Type: 11 L six-cylinder turbocharged/aftercooled diesel

• Year Range: Approximately 2000s-2010s

  

🔌 Function

  

Prevents leakage and contamination at the designated joint while maintaining the required separation between operating fluids or gases.

  

Common signs of failure:

  

• Low compression, rough running or reduced power

• Abnormal valve clearance or valve-train noise

• Oil consumption or blue exhaust smoke

• Burnt, bent, worn or sticking valve components

• Excessive guide clearance or valve-seat leakage

  

📦 Condition

  

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging

## Details

- **Price:** 12.61 AUD
- **Vendor:** Volvo Penta
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 12.61 AUD | In stock |

## Images

- 20924435 Valve Stem Seal | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/20924435-valve-stem-seal-genuine-volvo-penta)
> Updated: 2026-08-01