# 946541 Hex Socket Screw | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta hexagon socket screw with an M8 thread, weighing 0.007 kg and listed for 231 applications across the D, DPH, AD, TSK, TMD and DPI series engines and drives. It supersedes 3574854 and 3577840, both catalogued earlier simply as screws.

## 🚤 Compatibility

-   **Engine Family:** D, DPH, AD, TSK, TMD, DPI, DP, HS, DPR, SP, TAMD, KAD, KAMD, IPS
-   **HP Range:** 110-480 HP

Full model list at the end of this description.

## ⚙️ Key Features

-   M8 thread
-   0.007 kg
-   Supersedes 3574854 and 3577840
-   231 applications across D, DPH, AD, TSK, TMD and DPI series engines and drives
-   No length published — measure the original
-   M8x25mm / Ratio 2.08:1 (Volvo assembly listing)
-   Quantity varies by assembly, most commonly two

## 🔌 Function

Bolts a joint together where the head must sit in a counterbore or a spanner will not reach, driven with a hex key.

## ⚠️ Common Signs of Failure

-   Socket recess rounded so a key will not grip
-   Screw slack and the joint moving
-   Thread galled, stretched or stripped
-   Head corroded or seized in a drive housing

## 🛠️ Service Notes

-   Use a well-fitting hex key or bit — a worn key is what rounds the socket
-   Socket screw 946543 is the M8 x 30 mm listing if that is the length you need

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   946541 → Supersedes 3574854

### OEM / Related Numbers

-   3577840 earlier number superseded by this part
-   3574854 earlier number superseded by this part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 D6-370A-C, D6-350A-A, D6-350A-B, D6-330A-D, D6-330D-E, D6-370D-E, D6-370D-B, D6-330D-B, D6-330A-F, D6-370A-F, D6-370D-A, D6-330D-C, D6-330A-C, D6-370D-C, D6-330D-D, D6-370D-D, D6-330D-F, D6-370A-D, D6-330A-E, D6-370A-E, D6-370D-F, D6-330I-D, D6-310I-B, D6-280I-B, D6-280I-C, D6-280I-D, D6-280I-E, D6-310I-D, D6-435I-D, D6-310I-E, D6-280I-A, D6-310I-A, D6-300A-F, D6-300D-F, D6-300I-F, D6-310D-A, D6-310D-B, D6-310D-D, D6-310D-C, D6-310D-E, D6-370I-A, D6-370I-B, D6-330I-B, D6-330I-C, D6-370I-C, D6-370I-D, D6-310A-B, D6-280A-C, D6-310A-C, D6-310A-A, D6-280A-D, D6-310A-D, D6-280A-E, D6-310A-E, D6-310I-C, D6-280A-A, D6-280A-B, D6-300A-G, D6-340A-G, D6-380A-G, D6-400A-G, D6-440A-G, D6-330I-F, D6-370I-F, D6-400A-E, D6-435D-A, D6-435D-D, D6-435D-E, D6-435D-F, D6-435I-A, D6-435I-C, D6-435I-E, D6-400A-F, D6-435D-C, D6-435I-F, D6-330I-E, D6-370I-E, D6-330A-B, D6-370A-B, D6-480A-G
-   Volvo Penta D4-260A-B, D4-260A-A, D4-260A-C, D4-260A-D, D4-260A-E, D4-260A-F, D4-260D-B, D4-260D-C, D4-260D-D, D4-260D-E, D4-260D-F, D4-260I-A, D4-260I-B, D4-260I-C, D4-260I-D, D4-260I-E, D4-260I-F, D4-300A-A, D4-300A-C, D4-300A-D, D4-300A-E, D4-300A-F, D4-300D-A, D4-300D-C, D4-300D-D, D4-300D-E, D4-300D-F, D4-300I-A, D4-180I-C, D4-225I-C, D4-180I-D, D4-225I-D, D4-180I-E, D4-225I-E, D4-180I-F, D4-225I-F, D4-210A-A, D4-210A-B, D4-225A-B, D4-225A-C, D4-225A-D, D4-300I-C, D4-300I-D, D4-300I-E, D4-300I-F, D4-225A-E, D4-225A-F, D4-210I-A, D4-210I-B, D4-180I-B, D4-225I-B, D4-150A-G, D4-230A-G, D4-270A-G, D4-320A-G, D4-300A-G
-   Volvo Penta D13C2-B MP, D13C1-A MP, D13C2-A MP, D13C3-A MP, D13C4-A MP, D13B-L MP, D13B-E MH, D13B-E MH (FE), D13B-G MP, D13B-K MP, D13B-N MH, D13B-N MH (FE), D13B-C MP, D13C6-A MP, D13C1-A MH, D13C2-A MH, D13C4-B MP, D13C5-B MP, D13C5-A MP
-   Volvo Penta TSK DPH, TSK DP-H, TSK DP-H/DPR, TSK DPH-A, TSK DPH-AP, TSK DPH-AS, TSK DPH-B, TSK DPH-BP, TSK DPH-BS, TSK DPH-C, TSK DPH-E, TSK DPI-A, TSK DPH-D, TSK DPI-A2, TSK DPH-E1
-   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 TAMD31L, TAMD31L-A, TAMD31M, TAMD31M-A, TAMD31P, TAMD31P-A, TAMD31S, TAMD31D, TAMD31P-B
-   Volvo Penta D8A5-A MH, D8A6-A MH, D8A1-A MP, D8A2-A MP, D8A3-A MP, D8A4-A MP
-   Volvo Penta AD31D, AD31D-A, AD31L-A, AD31P-A, AD31XD
-   Volvo Penta TAMD41H-A, TAMD41H-B, TAMD41P-A, TAMD41P, TAMD41P-B
-   Volvo Penta D11B3-A MP, D11B4-A MP, D11B2-A MP, D11B1-A MP
-   Volvo Penta DPH-D1, DPH-E, DPH-A, DPH-C
-   Volvo Penta DPR-A, DPR-C, DPR-D, DPR-B
-   Volvo Penta AD41L-A, AD41P-A
-   Volvo Penta TMD31D, TMD31L-A
-   Volvo Penta D41L-A
-   Volvo Penta DP-D1
-   Volvo Penta DPI-A
-   Volvo Penta HS1A
-   Volvo Penta IPS3-A
-   Volvo Penta KAD42B
-   Volvo Penta KAMD42B
-   Volvo Penta SP-C1
-   Volvo Penta TAMD42B
-   Volvo Penta TMD41L-A

## Details

- **Price:** 2.5 AUD
- **Vendor:** Volvo Penta
- **Type:** Fasteners & Fixings
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 2.50 AUD | In stock |

## Images

- 946541 Hex Socket Screw | Genuine Volvo Penta Part
- 946541 Hex Socket 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/946541-hex-socket-screw-genuine-volvo-penta)
> Updated: 2026-09-19