# 993579 Stud | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta stud weighing 0.027 kg and listed for 19 applications across the D and HS series. It supersedes part number 479971, which the earlier records carried only as a spare part rather than under its own name, so an older list may not describe it as a stud at all.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta D6-300I-F
-   Volvo Penta D6-340I-G
-   Volvo Penta D6-380I-G
-   Volvo Penta D6-440I-G
-   Volvo Penta D6-480I-G
-   Volvo Penta HS85IVE-A
-   Volvo Penta D6-440I-WJ-G
-   Volvo Penta D6-480I-WJ-G
-   Volvo Penta D4-175I-G
-   Volvo Penta D4-230I-G
-   Volvo Penta D4-270I-G
-   Volvo Penta D4-320I-G
-   Volvo Penta D4-300I-G
-   Volvo Penta D6-300I-G
-   Volvo Penta D6-330I-F
-   Volvo Penta D6-370I-F
-   Volvo Penta D6-435I-F
-   Volvo Penta D4-145I-G
-   Volvo Penta D4-175 VG

-   **Engine Family:** D, HS
-   **HP Range:** 145-480 HP

## ⚙️ Key Features

-   0.027 kg
-   Listed for 19 applications
-   Fits D and HS series
-   Supersedes 479971

## 🔌 Function

Screws permanently into the casting to give a fixed threaded spigot, so the component can be located and clamped with a nut without repeatedly cutting the parent thread.

## ⚠️ Common Signs of Failure

-   Nut will not hold torque, or turns the stud instead of tightening
-   Stud unscrewing with the nut when the joint is dismantled
-   Thread stripped, stretched or corroded
-   Stud snapped level with the casting face

## 🛠️ Service Notes

-   Check the tapped hole in the casting before fitting a new stud - if that thread has pulled, a new stud alone will not fix the joint
-   Wind the stud in to the correct depth and let it settle before torquing the nut

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   993579 → Supersedes 479971 → Supersedes 924077 → Supersedes 17030

### OEM / Related Numbers

-   479971 earlier number superseded by this part
-   924077 earlier number superseded by this part
-   17030 earlier number superseded by this part

## 📦 Condition

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

## Details

- **Price:** 24.89 AUD
- **Vendor:** Volvo Penta
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 24.89 AUD | In stock |

## Images

- 993579 Stud | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/993579-stud-genuine-volvo-penta)
> Updated: 2026-08-22