# 996078 Flange Screw | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta flange screw weighing 0.095 kg and listed for 25 applications across the D and TAD engine series. It supersedes part number 974428.

## 🚤 Compatibility

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

Full model list at the end of this description.

## ⚙️ Key Features

-   0.095 kg
-   25 applications across the D and TAD series
-   Supersedes 974428
-   Quantity varies by assembly, most commonly 8

## 🔌 Function

Clamps two components together, its integral flange spreading the clamp load so no separate washer is needed.

## ⚠️ Common Signs of Failure

-   Joint working loose or weeping at the face
-   Serrations under the flange worn smooth or bedded in
-   Head rounded off or the drive faces chewed
-   Thread stripped or galled on removal
-   Flange cracked or distorted around the head

## 🛠️ Service Notes

-   The integral flange spreads the load and forms the bearing face, so do not add a separate washer unless the workshop manual for your engine specifically calls for one
-   Clean the threads and the seating face before fitting — grit, paint or old sealant under the flange gives a false torque reading and the joint will slacken off in service
-   Where the flange is serrated it must bear directly on clean metal to grip; discard any screw with a deformed flange or damaged serrations rather than reusing it
-   Tighten to the torque and sequence given in the workshop manual for your engine, and treat the screw as single-use where the manual specifies an angle-tightened or stretch fastener
-   Check the thread in the receiving component at the same time; a pulled or corroded thread will not hold a new screw however carefully it is torqued

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   996078 → Supersedes 974428

### OEM / Related Numbers

-   974428 earlier number superseded by this part

## 📦 Condition

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

## 🔎 Full Model Compatibility

Typically suits:

-   Volvo Penta D6-340I-G, D6-380I-G, D6-440I-G, D6-480I-G, D6-440I-WJ-G, D6-480I-WJ-G, D6-300I-G
-   Volvo Penta D8A5-A MH, D8A6-A MH, D8A5-A MG, D8A6-A MG, D8A1-A MP, D8A2-A MP, D8A3-A MP
-   Volvo Penta D4-175I-G, D4-230I-G, D4-270I-G, D4-320I-G, D4-300I-G, D4-145I-G
-   Volvo Penta D9A2L MH, D9A2M MP
-   Volvo Penta TAD840-43VE
-   Volvo Penta TAD850-52VE
-   Volvo Penta TAD870-73VE

## Details

- **Price:** 11.68 AUD
- **Vendor:** Volvo Penta
- **Type:** Fasteners & Fixings
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 11.68 AUD | In stock |

## Images

- 996078 Flange Screw | Genuine Volvo Penta Part
- 996078 Flange 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/996078-flange-screw-genuine-volvo-penta)
> Updated: 2026-09-22