# 994078 Stud | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta stud weighing 0.109 kg and listed for 8 applications across the TAD and D engine series. Important: the old part number 21269432 is replaced by TWO current studs - this one and 994077, which is 175 mm long - so an order placed against 21269432 for this number alone may come up short. Check which of the pair your job needs, or whether it needs both.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta TAD841-43GE
-   Volvo Penta D16C-A MG
-   Volvo Penta D16C-A MH
-   Volvo Penta D16C-B MH
-   Volvo Penta D16C-C MH
-   Volvo Penta TAD851-53GE
-   Volvo Penta D16C-D MH
-   Volvo Penta TAD840GE-B

-   **Engine Family:** TAD, D

## ⚙️ Key Features

-   0.109 kg
-   Listed for 8 applications
-   Fits TAD and D series engines
-   One of two current studs replacing the old number 21269432 - the other is the 175 mm stud 994077
-   Quantity varies by assembly, most commonly two
-   Also supersedes Volvo part number 3809130

## 🔌 Function

Screws permanently into the casting to give a fixed threaded spigot for locating and clamping the component with a nut.

## ⚠️ Common Signs of Failure

-   Nut turning the stud rather than tightening against the joint
-   Stud unscrewing with the nut on dismantling
-   Thread stretched, stripped or corroded
-   Stud snapped at the casting face

## 🛠️ Service Notes

-   If your list calls for 21269432, check both 994078 and 994077 before ordering - one old number now covers two current studs
-   Check the tapped hole in the casting before fitting the new stud

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   994078 → Supersedes 21269432

## 📦 Condition

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

## Details

- **Price:** 65.19 AUD
- **Vendor:** Volvo Penta
- **Type:** Fasteners & Fixings
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 65.19 AUD | In stock |

## Images

- 994078 Stud | Genuine Volvo Penta Part
- 994078 Stud | Genuine Volvo Penta Part - photo 2 of 2

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/994078-stud-genuine-volvo-penta)
> Updated: 2026-10-09