# 20817742 Gasket | Genuine Volvo Penta Part

🔧 Product Description

  

Genuine Volvo Penta Gasket - Part Number: 20817742

  

Application-specific Gasket used in the coolant pump, thermostat and connection-pipe assembly on the listed Volvo Penta engines. Seals the joint between two stationary mating faces and prevents fluid, gas or pressure leakage.

  

⚙️ Key Features

  

• Genuine Volvo Penta Gasket

• Direct service replacement for part number 20817742

• Designed for the coolant pump, thermostat and connection-pipe assembly

• Seals the joint between two stationary mating faces and prevents fluid, gas or pressure leakage

• Catalogued for TAD420VE; TD420VE

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 20817742 (Volvo Penta OEM reference)

  

OEM / Related Numbers:

  

• VOE20817742 - Volvo Construction Equipment prefixed number format

• 20739051 / 22682952 - fan-console references

• 21125771 / 21247955 / 21404502 - coolant pumps

• 20459005 - pump sealing ring

• 20450736 - thermostat

• 20459961 - thermostat sealing ring

• 20450735 - outlet pipe

• 20459950 - coolant fitting

  

Aftermarket / Verified Equivalents:

  

• No aftermarket equivalent

  

🚤 Compatibility

  

Commonly used on:

  

• Volvo Penta TAD420/TD420 cooling-system installations

  

Typically suits:

  

• Engine models:

• TAD420VE

• TD420VE

  

• HP Range: Approximately 130HP - 160HP

• Engine Type: 4-litre four-cylinder turbocharged industrial diesel

• Year Range: Approximately 1998 - 2006

  

🔌 Function

  

Seals the joint between two stationary mating faces and prevents fluid, gas or pressure leakage.

  

Common signs of failure:

  

• Fluid, gas or pressure leakage at the joint

• Flattening, hardening, cracking, tearing or extrusion

• Corrosion, fretting or erosion across the mating face

• Repeated leakage caused by distorted or damaged sealing surfaces

• Contamination, swelling or heat damage to the sealing material

  

Service / Installation Notes:

  

• Remove all old sealing material without damaging the mating faces and confirm the correct seal grade or thickness.

• Lubricate only where specified, install without twisting, and pressure-check the system after assembly.

  

📦 Condition

  

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging

## Details

- **Price:** 80.91 AUD
- **Vendor:** Volvo Penta
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 80.91 AUD | In stock |

## Images

- 20817742 Gasket | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/20817742-gasket-genuine-volvo-penta)
> Updated: 2026-08-01