# 20845144 Valve Seat | Genuine Volvo Penta Part

🔧 Product Description

  

Genuine Volvo Penta Engine Valve Seat - Part Number: 20845144

  

Application-specific Engine Valve Seat used in the cylinder-head exhaust-valve and valve-seat assembly on the listed Volvo Penta engines. Provides the hardened sealing and heat-transfer surface against which the engine valve closes.

  

⚙️ Key Features

  

• Genuine Volvo Penta Engine Valve Seat

• Direct service replacement for part number 20845144

• Designed for the cylinder-head exhaust-valve and valve-seat assembly

• Provides the hardened sealing and heat-transfer surface against which the engine valve closes

• Catalogued for TAD531GE MECH; TAD760VE

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 20845144 (Volvo Penta OEM reference)

  

OEM / Related Numbers:

  

• VOE20845144 - Volvo Construction Equipment prefixed number format

• 20459963 / 20845144 - Volvo exhaust valve-seat references

• 20459963 - earlier/related exhaust valve-seat reference

• 20789674 - valve guide

• 20833936 - exhaust valve

• 20840747 - valve-spring disc

• 20459855 - valve-stem seal

  

Aftermarket / Verified Equivalents:

  

• No aftermarket equivalent

  

🚤 Compatibility

  

Commonly used on:

  

• Volvo Penta TAD531 and TAD760 cylinder-head exhaust-valve installations

  

Typically suits:

  

• Engine models:

• TAD531GE MECH

• TAD760VE

  

• HP Range: Approximately 160HP - 280HP

• Engine Type: Five- and seven-litre turbocharged industrial diesel

• Year Range: Approximately 2004 - 2015

  

🔌 Function

  

Provides the hardened sealing and heat-transfer surface against which the engine valve closes.

  

Common signs of failure:

  

• Low compression, abnormal combustion or cylinder imbalance

• Knocking, tapping or abnormal valve-train noise

• Excessive oil consumption, blow-by or exhaust smoke

• Out-of-spec clearance, wear, scoring or heat damage during overhaul

• Loss of power or metallic debris found in the lubricating oil

  

Service / Installation Notes:

  

• Measure all mating parts and clearances against the exact engine specification rather than replacing the component by appearance alone.

• Use clean engine-assembly practices, correct lubricants and the specified tightening sequence.

  

📦 Condition

  

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging

## Details

- **Price:** 46.53 AUD
- **Vendor:** Volvo Penta
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 46.53 AUD | In stock |

## Images

- 20845144 Valve Seat | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/20845144-valve-seat-genuine-volvo-penta)
> Updated: 2026-08-01