Isuzu
Isuzu 6BB1 Engine Specs
B Series
The Isuzu 6BB1 is a 5.393 L naturally aspirated inline-6 diesel engine from Isuzu legacy medium-duty applications. This reference page summarizes 6BB1 engine specs, manual sources, 107 kW maximum mechanical output, compression ratio, origin and related Isuzu 4B/6B engines.
Overhaul & repair parts- Manufacturer files
- 2 datasheets
- Last updated
- 2026-08-04
- Package route
- diesel generator sets
- Maximum Mechanical Power
- 107 kW
- Cylinders
- L6
- Displacement
- 5.393 L
- Rated Speed
- 3,200 RPM
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Isuzu 6BB1 overhaul & repair parts
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Isuzu 6BB1 industrial power context
The Isuzu 6BB1 is a 5.393 L naturally aspirated inline-6 diesel engine from Isuzu legacy medium-duty applications. This reference page summarizes 6BB1 engine specs, manual sources, 107 kW maximum mechanical output, compression ratio, origin and related Isuzu 4B/6B engines.
Also searched as
What is the Isuzu 6BB1?
The Isuzu 6BB1 is a 5.393 L naturally aspirated inline-6 diesel engine introduced in the 1970s for medium-duty Isuzu applications. This page is built for 6BB1 engine specs searches and lists the core reference fields: 107 kW maximum mechanical output at 3,200 rpm, 17.5:1 compression ratio, liquid cooling, diesel fuel, Japan origin and available documentation context. For genset or replacement projects, verify whether the engine will run at the required fixed speed and confirm alternator sizing before packaging.
Technical reference links
Compare the 6BB1 before sourcing a package
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Technical Specifications
| Brand | Isuzu |
| Model | 6BB1 |
| Series | B Series |
| Configuration | L6, naturally aspirated |
| Cylinders | 6 |
| Displacement | 5.393 L |
| Compression Ratio | 17.5:1 |
| Fuel Type | Diesel |
| Ignition Type | Compression Ignition |
| Cooling Method | Liquid-Cooled |
| Emissions Standard | Unregulated |
| Country of Origin | Japan |
| Year Introduced | 1972 |
Frequently asked questions
What is the maximum power output of the Isuzu 6BB1?
The Isuzu 6BB1 has a maximum mechanical output of 107 kW at 3,200 rpm. This is a variable-speed off-road rating, not a fixed-speed generator-set rating.
What fuel does the Isuzu 6BB1 use?
The Isuzu 6BB1 is a diesel variable-speed industrial engine.
What is the displacement and cylinder configuration of the 6BB1?
The Isuzu 6BB1 is an inline-6 (6-cylinder) engine with a displacement of 5.393 L.
Is the 6BB1 still in production?
No — the Isuzu 6BB1 is discontinued. Its specifications and datasheets remain archived here for reference.
Are reference documents available for the 6BB1?
This page links reference documents for the Isuzu 6BB1. Check each document's title, model coverage, revision and rating conditions before using it for selection.