# 20796079 Flange Nut | Genuine Volvo Penta Part

🔧 Product Description

  

Genuine Volvo Penta Flange Nut - Part Number: 20796079

  

Application-specific flange nut used in the 24-volt starter-motor relay and power connection on the listed Volvo Penta engines. Secures the starter-relay or electrical connection with an integral flange that distributes clamp load.

  

⚙️ Key Features

  

• Genuine Volvo Penta flange nut

• Direct service replacement for part number 20796079

• Designed for the 24-volt starter-motor relay and power connection

• Secures the starter-relay or electrical connection with an integral flange that distributes clamp load

• Application family: Four- and six-cylinder industrial diesel; Approximately 1999 - 2016

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 20796079 (Volvo Penta OEM reference)

  

OEM / Related Numbers:

  

• VOE20796079 - Volvo Construction Equipment prefixed number format

• 3803979 - remanufactured starter motor

• 21306350 / 22851149 - starter-motor references

• 20796066 - 24V relay

• VOE20796066 - Volvo CE number format

• 873962 / 25381616 / 874743 / 3171420 / 1504951 - documented relay interchange numbers

• 20796079 - flange nut

• 20792273 - cable terminal

  

Aftermarket / Verified Equivalents:

  

• No aftermarket equivalent

  

🚤 Compatibility

  

Commonly used on:

  

• Volvo Penta TAD520/TAD620/TAD650/TAD720/TAD750 starting-system installations

  

Typically suits:

  

• Engine models:

• TAD520GE; TAD520VE; TAD620VE; TAD650VE

• TAD660VE; TAD720GE; TAD720VE; TAD721VE

• TAD734GE; TAD750VE; TAD760VE

  

• HP Range: Approximately 150HP - 320HP

• Engine Type: Four- and six-cylinder industrial diesel

• Year Range: Approximately 1999 - 2016

  

🔌 Function

  

Secures the starter-relay or electrical connection with an integral flange that distributes clamp load.

  

Common signs of failure:

  

• Rounded drive surfaces or damaged threads

• Stretching, cracking, corrosion or permanent deformation

• Fastener repeatedly loosens or cannot retain the specified torque

• Fretting or movement visible at the joint

• Incorrect seating or clamp load caused by substituted hardware

  

Service / Installation Notes:

  

• Confirm thread, length, strength grade and any single-use restriction.

• Use the specified torque, angle and locking method on clean threads.

  

📦 Condition

  

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging

## Details

- **Price:** 6.48 AUD
- **Vendor:** Volvo Penta
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 6.48 AUD | In stock |

## Images

- 20796079 Flange Nut | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/20796079-flange-nut-genuine-volvo-penta)
> Updated: 2026-08-01