# 20463855 Shim | Genuine Volvo Penta Part

## 🔧 Product Description

Graded service shim used when setting cylinder-liner protrusion or piston/liner installation height. Selection must be based on measured values and the Volvo Penta workshop specification.

## 🚤 Compatibility

-   **Engine Family:** TAD, D
-   **Year Range:** Approximately late 1990s-2010s

Full model list at the end of this description.

## ⚙️ Key Features

-   0.50 mm thick
-   0.016 kg
-   Supersedes 3807678, catalogued earlier as a shim kit
-   Listed for 35 applications across TAD and D series engines
-   Graded shim, selected only after measurement
-   0.50mm / 0.5mm / TH=0.50mm / TH=0.5mm (Volvo assembly listing)

## 🔌 Function

Provides a calibrated thickness used to set the required protrusion, clearance or installed position after measurement.

## ⚠️ Common Signs of Failure

-   Cylinder-liner protrusion measuring outside the workshop specification
-   Head gasket leaking, or combustion gas finding its way into the coolant
-   Shim pitted, fretted or cavitation-eroded at the liner seat
-   Uneven bedding marks around the liner seat on strip-down

## 🛠️ Service Notes

-   Measure liner protrusion and select the grade from the measured figure - never fit by eye
-   The 0.20 mm shim 20463853 and the 0.30 mm shim 20463854 cover the other graded thicknesses in the same range
-   The published weights across the three grades do not follow thickness, so order by the thickness figure and not by mass

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   20463855 → Supersedes 3807678

### OEM / Related Numbers

-   3807678 earlier number superseded by this part

### Aftermarket / Verified Equivalents

-   ATP: SH-855

## 📦 Condition

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

## 🔎 Full Model Compatibility

Typically suits:

-   Volvo Penta D11B3-A MP, D11B4-A MP, D11A-A, D11A-B, D11A-C, D11A-E, D11B2-A MP, D11A-C MP, D11A-D MP, D11A-E MP, D11A-C (IPS), D11B1-A MP
-   Volvo Penta D9A2J, D9A2G, D9A2L MH, D9A2D, D9A2B, D9A2F, D9A2K, D9A2H, D9A2M MP, D9A2A, D9A2C, D9A2E
-   Volvo Penta TAD1140-42VE
-   Volvo Penta TAD1150-52VE
-   Volvo Penta TAD1170-72VE
-   Volvo Penta TAD1180-83VE
-   Volvo Penta TAD940VE
-   Volvo Penta TAD941VE
-   Volvo Penta TAD942VE
-   Volvo Penta TAD943VE
-   Volvo Penta TAD950VE
-   Volvo Penta TAD951VE
-   Volvo Penta TAD952VE

## Details

- **Price:** 25.83 AUD
- **Vendor:** Volvo Penta
- **Type:** Fasteners & Fixings
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 25.83 AUD | In stock |

## Images

- 20463855 Shim | Genuine Volvo Penta Part
- 20463855 Shim | Genuine Volvo Penta Part - photo 2 of 2

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/20463855-shim-genuine-volvo-penta)
> Updated: 2026-10-12