# 20799087 Six Point Screw | Genuine Volvo Penta Part

## 🔧 Product Description

OEM fastening or load-distribution component used in the fuel-filter housing and common-rail low-pressure fuel system. It restores the specified thread, strength, length and clamping geometry required by the original Volvo Penta assembly.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta TAD650VE
-   Volvo Penta TAD660VE
-   Volvo Penta TAD750GE
-   Volvo Penta TAD751GE
-   Volvo Penta TAD750VE
-   Volvo Penta TAD760VE

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

## ⚙️ Key Features

-   Six-point screw for the fuel-filter housing and common-rail low-pressure fuel system
-   0.005 kg
-   6 applications across TAD-series engines
-   Supersedes 20850155, catalogued earlier as a flange screw
-   2 used per assembly

## 🔌 Function

Clamps a fuel-filter or low-pressure fuel-system component to its mating face so the joint stays fuel-tight.

## ⚠️ Common Signs of Failure

-   Diesel weeping at the joint the screw clamps
-   Hard starting or hunting from air drawn in at a loosened joint
-   Screw found loose or backed out
-   Head recess rounded out so a socket will not grip
-   Thread pulled in the alloy housing

## 🛠️ Service Notes

-   Supersedes flange screw 20850155, so the head form has changed - check the clamped height against parts list for your engine if you are matching an old screw
-   Easy to over-torque into an alloy housing at this size - check the female thread before refitting

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   20799087 → Supersedes 20850155

### OEM / Related Numbers

-   20850155 earlier number superseded by this part
-   20798139 fuel-filter-housing cover
-   20805349 fuel filter
-   20914974 housing
-   20818370 bushing
-   21302639 pressure sensor

## 📦 Condition

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

## Details

- **Price:** 8.56 AUD
- **Vendor:** Volvo Penta
- **Type:** Fasteners & Fixings
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 8.56 AUD | In stock |

## Images

- 20799087 Six Point Screw | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/20799087-six-point-screw-genuine-volvo-penta)
> Updated: 2026-10-09