# 993474 Hex Socket Screw | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta hexagon socket screw weighing 0.018 kg and listed for 88 applications on D series engines. Socket screw 993604 covers the same 88 D series applications at 0.014 kg, so the two are close relatives fitted around the same engines - only 4 grams and the part number separate them, and weight is not something you can check on the bench.

## 🚤 Compatibility

-   **Engine Family:** D
-   **HP Range:** 110-480 HP

Full model list at the end of this description.

## ⚙️ Key Features

-   0.018 kg
-   Listed for 88 applications
-   Fits D series engines
-   Sits alongside socket screw 993604, which shares the same 88 applications

## 🔌 Function

Clamps two parts together, driven by a hexagon key in the socket in its head.

## ⚠️ Common Signs of Failure

-   Socket rounded out so the key slips
-   Screw backed out or found missing
-   Thread stripped or the head snapped off
-   Head face fretted or corroded

## 🛠️ Service Notes

-   Check the number against 993604 before ordering - both cover the same 88 D series applications and only the part number reliably tells them apart
-   Clear the socket of debris before applying the key

## 📦 Condition

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

## 🔎 Full Model Compatibility

Typically suits:

-   Volvo Penta D6-330A-F, D6-370A-F, D6-330D-F, D6-370D-F, D6-300A-F, D6-300D-F, D6-300I-F, D6-340I-G, D6-380I-G, D6-440I-G, D6-480I-G, D6-300A-G, D6-340A-G, D6-380A-G, D6-440I-WJ-G, D6-480I-WJ-G, D6-300D-G, D6-340D-G, D6-380D-G, D6-440D-G, D6-480D-G, D6-400A-G, D6-440A-G, D6-300I-G, D6-330I-F, D6-370I-F, D6-435D-F, D6-400A-F, D6-435I-F
-   Volvo Penta D4-260A-F, D4-260D-F, D4-260I-F, D4-300A-F, D4-300D-F, D4-180I-F, D4-225I-F, D4-300I-F, D4-225A-F, D4-175I-G, D4-230I-G, D4-270I-G, D4-320I-G, D4-300I-G, D4-230A-G, D4-270A-G, D4-320A-G, D4-300A-G, D4-145I-G
-   Volvo Penta D13C1-A MP, D13C2-A MP, D13C3-A MP, D13C4-A MP, D13B-E MH, D13B-E MH (FE), D13B-G MP, D13B-K MP, D13B-N MH, D13B-N MH (FE), D13C6-A MP, D13C1-A MH, D13C2-A MH, D13C5-A MP
-   Volvo Penta D3-110I-H, D3-140A-H, D3-170A-H, D3-200A-H, D3-220A-H, D3-150I-H, D3-170I-H, D3-200I-H, D3-220I-H, D3-140I-H
-   Volvo Penta D11C1-A MP, D11C3-A MP, D11C2-A MP, D11C4-A MP, D11B3-A MP, D11B4-A MP, D11B2-A MP, D11B1-A MP
-   Volvo Penta D8A5-A MH, D8A6-A MH, D8A1-A MP, D8A2-A MP, D8A3-A MP, D8A4-A MP
-   Volvo Penta D9A2L MH, D9A2M MP

## Details

- **Price:** 18.13 AUD
- **Vendor:** Volvo Penta
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 18.13 AUD | In stock |

## Images

- 993474 Hex Socket Screw | Genuine Volvo Penta Part

---

> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/993474-hex-socket-screw-genuine-volvo-penta)
> Updated: 2026-08-22