874928 Tachometer | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta tachometer with a white face, 85 mm in diameter, weighing 0.211 kg and listed for 42 applications across D, TWD and TAD series engines. The black-faced 85 mm tachometer is 874903, which covers the same three engine series and additionally carries a supersession history; face colour is what separates the two, so match the rest of the panel.

🚤 Compatibility

• Engine Family: D, TWD, TAD

Full model list at the end of this description.

⚙️ Key Features

• White face, 85 mm in diameter
• 0.211 kg
• Listed for 42 applications across D, TWD and TAD series engines
• Black-faced equivalent is 874903
• 85mm (Volvo assembly listing)

🔌 Function

Displays engine speed at the helm or control station, driven from the engine's speed signal.

⚠️ Common Signs of Failure

• Needle at zero, sticking, or hard against the full-scale stop
• Reading that wanders while engine speed is steady
• Panel illumination out with the needle still working
• Condensation or staining behind the glass
• Reading that disagrees with a second known-good instrument

🛠️ Service Notes

• Check the speed signal source and the instrument earth before replacing the tachometer
• The 85 mm instruments share a face size, so colour is what has to match the panel

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D12C-A MP, D12D-A MH, D12D-A MP, D12D-B MH, D12D-B MP, D12D-C MH, D12D-C MP, D12D-D MP, D12D-E MH, D12D-E MP, D12D-F MP, D12D-G MH, D12D-G MP, D12D-H MP
• Volvo Penta D9A2J, D9A2G, D9A2D, D9A2B, D9A2F, D9A2K, D9A2H, D9A2A, D9A2C, D9A2E
• Volvo Penta TAD1640-42GE-B, TAD1640GE
• Volvo Penta TAD1641GE, TAD1641VE
• Volvo Penta TAD1642GE, TAD1642VE
• Volvo Penta TAD1371-75VE
• Volvo Penta TAD1643VE
• Volvo Penta TAD1650GE
• Volvo Penta TAD1651GE
• Volvo Penta TWD1643GE
• Volvo Penta TWD1644-45GE
• Volvo Penta TWD1652GE
• Volvo Penta TWD1653GE
• Volvo Penta TWD1663GE
• Volvo Penta TWD1672-1673GE
• Volvo Penta TWD1682-83GE
• Volvo Penta TWD1683VE