# 6642578 Hollow Screw | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta hollow screw from the Fuel System group, weighing 0.034 kg and listed for 9 applications across TMD, MS, TAMD and MD series engines. Fuel passes through the screw itself, so its bore is as important as its thread.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta TMD22A
-   Volvo Penta TMD22B
-   Volvo Penta TMD22P-C
-   Volvo Penta MS2B-A
-   Volvo Penta TAMD22P-B
-   Volvo Penta MD22
-   Volvo Penta MD22A
-   Volvo Penta MD22L
-   Volvo Penta MD22P

-   **Engine Family:** TMD, MS, TAMD, MD

## ⚙️ Key Features

-   0.034 kg
-   9 applications across TMD, MS, TAMD and MD series engines
-   Fuel passes through the screw itself
-   Fitted with banjo nipple 6613554 in the same connection group
-   2 used per assembly

## 🔌 Function

Clamps a fuel connection while carrying fuel flow through its own bore.

## ⚠️ Common Signs of Failure

-   Fuel weeping from the union
-   Bore or drillings blocked by debris, restricting flow
-   Sealing faces coned or nicked from over-tightening
-   Thread stripped or the hex rounded off
-   Air drawn into the fuel system, giving hunting or hard starting

## 🛠️ Service Notes

-   Banjo nipple 6613554 has the same published weight of 0.034 kg and the same 9 applications, so order these two by part number rather than by weight
-   Fit new sealing washers on both sides of the connection and check the bore is clear
-   Bleed the fuel system after reassembly

## 📦 Condition

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

## Details

- **Price:** 54.66 AUD
- **Vendor:** Volvo Penta
- **Type:** Fasteners & Fixings
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 54.66 AUD | In stock |

## Images

- 6642578 Hollow Screw | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/6642578-hollow-screw-genuine-volvo-penta)
> Updated: 2026-10-11