Volvo Penta
Volvo Penta TWD1231VE
Legacy D12 Industrial VE
Volvo Penta TWD1231VE discontinued legacy D12 industrial diesel. Volvo Penta service-manual mirrors and engine cross-reference lists identify TWD1231VE in the legacy industrial D12 family, with cross-reference output listed at 247 kW / 335 hp.
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- Manufacturer files
- No datasheet
- Last updated
- 2026-08-11
- Package route
- diesel generator sets
- Maximum Mechanical Power
- 247 kW
- Cylinders
- L6
- Displacement
- 11.98 L
- Rated Speed
- 2,100 RPM
Volvo Penta TWD1231VE industrial power context
The Volvo Penta TWD1231VE is a high-speed industrial diesel engine rated at 247 kW mechanical output at 2,100 RPM. It is used in off-road equipment and can support engineered variable-speed power systems, but its maximum power is not a direct 50/60 Hz alternator rating. Verify the drivetrain, power electronics, cooling, and emissions installation with Volvo Penta before specifying a generator package.
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Technical Specifications
| Brand | Volvo Penta |
| Model | TWD1231VE |
| Series | Legacy D12 Industrial VE |
| Configuration | Inline-6, turbocharged water-cooled industrial diesel |
| Cylinders | 6 |
| Displacement | 11.98 L |
| Fuel Type | Diesel |
| Ignition Type | Compression Ignition |
| Cooling Method | Liquid-Cooled |
| Emissions Standard | Legacy pre-current industrial emissions |
| Country of Origin | Sweden |
Frequently asked questions
What is the maximum power output of the Volvo Penta TWD1231VE?
The Volvo Penta TWD1231VE has a maximum mechanical output of 247 kW at 2,100 rpm. This is a variable-speed off-road rating, not a fixed-speed generator-set rating.
What fuel does the Volvo Penta TWD1231VE use?
The Volvo Penta TWD1231VE is a diesel variable-speed industrial engine.
What is the displacement and cylinder configuration of the TWD1231VE?
The Volvo Penta TWD1231VE is an inline-6 (6-cylinder) engine with a displacement of 11.98 L.
What emissions standard does the TWD1231VE meet?
The Volvo Penta TWD1231VE is certified to Legacy pre-current industrial emissions emissions standards.
Is the TWD1231VE still in production?
No — the Volvo Penta TWD1231VE is discontinued. Its specifications and datasheets remain archived here for reference.