20463854 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

• 0.30 mm thick
• 0.029 kg
• Supersedes 3807677, catalogued earlier as a shim kit
• Listed for 35 applications across TAD and D series engines
• Graded shim, selected only after measurement
• 0.30mm / 0.3mm / TH=0.30mm / TH=0.3mm (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 0.50 mm shim 20463855 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

• 20463854 → Supersedes 3807677

OEM / Related Numbers

• 3807677 earlier number superseded by this part

Aftermarket / Verified Equivalents

• ATP: SH-854

📦 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