# 943103 Hollow Screw | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta hollow screw for engines with oil supervision installed, weighing 0.016 kg and listed for 10 applications across D, TD, TWD, THD and DH series engines. It consolidates four earlier numbers - 420700, 425421, 477678 and 477674 - two of which were catalogued earlier as oil pressure pipes, so an order against an old number may return a pipe listing rather than the screw.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta D70CHC
-   Volvo Penta D70CRC
-   Volvo Penta TD70CHC
-   Volvo Penta TWD630ME
-   Volvo Penta TD70CRC
-   Volvo Penta THD102KB
-   Volvo Penta THD102KD
-   Volvo Penta THD102K-KB
-   Volvo Penta TWD630VE
-   Volvo Penta DH10A

-   **Engine Family:** D, TD, TWD, THD, DH

## ⚙️ Key Features

-   For installations with oil supervision fitted
-   0.016 kg
-   10 applications across D, TD, TWD, THD and DH engines
-   Consolidates 420700, 425421, 477678 and 477674
-   Also supersedes Volvo part numbers 420580 and 465800

## 🔌 Function

Bolts the oil line's banjo connection to its port while carrying the oil through its own drilled centre.

## ⚠️ Common Signs of Failure

-   Oil weeping or dripping from the banjo joint
-   Sealing washers found flattened or previously reused
-   Centre drilling blocked with sludge, giving a false or dead gauge reading
-   Screw stretched or the head rounded on removal
-   Oil pressure reading erratic or absent

## 🛠️ Service Notes

-   Fit new sealing washers both sides of the banjo - reused washers are the usual cause of a repeat weep
-   Check the drilling is clear before fitting; a blocked screw will read as no oil pressure when the engine is fine
-   942806 is the late-type hollow screw in this run and is a different application

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   943103 → Supersedes 420700

### OEM / Related Numbers

-   477678 earlier number superseded by this part
-   477674 earlier number superseded by this part

## 📦 Condition

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

## Details

- **Price:** 25.46 AUD
- **Vendor:** Volvo Penta
- **Type:** Fasteners & Fixings
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 25.46 AUD | In stock |

## Images

- 943103 Hollow Screw | Genuine Volvo Penta Part
- 943103 Hollow Screw | Genuine Volvo Penta Part - photo 2 of 2

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/943103-hollow-screw-genuine-volvo-penta)
> Updated: 2026-10-07