# 20797188 Six Point Screw | Genuine Volvo Penta Part

## 🔧 Product Description

OEM fastening or load-distribution component used in the flywheel-housing, rear-engine and sealing-cover assembly. It restores the specified thread, strength, length and clamping geometry required by the original Volvo Penta assembly. Application note: Catalogue length: approximately 90 mm.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta TAD560VE
-   Volvo Penta TAD561VE
-   Volvo Penta TAD734GE
-   Volvo Penta TAD752GE
-   Volvo Penta TAD753GE
-   Volvo Penta TAD754GE
-   Volvo Penta TAD765VE
-   Volvo Penta TAD764VE
-   Volvo Penta TAD763VE
-   Volvo Penta TAD762VE
-   Volvo Penta TAD761VE

-   **Engine Family:** TAD
-   **HP Range:** Approximately 300 HP
-   **Year Range:** Approximately 2000s-2010s

## ⚙️ Key Features

-   90 mm long
-   Six-point head
-   0.161 kg
-   11 applications across TAD-series engines
-   Flywheel-housing, rear-engine and sealing-cover fastening
-   L=90mm (Volvo assembly listing)
-   4 used per assembly

## 🔌 Function

Clamps the flywheel housing and rear-engine covers to the block, holding the joint at its designed load against engine vibration.

## ⚠️ Common Signs of Failure

-   Oil weeping from the covered joint as clamp load is lost
-   Screw found loose or backed off on inspection
-   Head recess rounded out so a socket no longer grips
-   Thread stretched or galled when the screw is withdrawn
-   Corrosion packed into the head recess

## 🛠️ Service Notes

-   Order by length - this is the 90 mm screw, 20797198 is 100 mm and 20797195 is 180 mm
-   Renew rather than reuse if the head splines are damaged, and follow the tightening sequence in the workshop manual for the housing

## 🔄 Supersession & Cross Reference

### OEM / Related Numbers

-   21133296; 21280544; 21933436 flywheel-housing references
-   21486084 rear crankshaft lip seal
-   20800033 sealing cover
-   969011 gasket
-   21665303 adapter
-   20792329 retainer
-   20794126 bushing
-   21133308 bracket

## 📦 Condition

-   Genuine Volvo Penta part
-   Brand new
-   Supplied in original or equivalent packaging

## Details

- **Price:** 15.51 AUD
- **Vendor:** Volvo Penta
- **Type:** Fasteners & Fixings
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 15.51 AUD | In stock |

## Images

- 20797188 Six Point Screw | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/20797188-six-point-screw-genuine-volvo-penta)
> Updated: 2026-10-10