2004 Caterpillar 3126 marine engine, serial 7ZJ03751, arrangement-350 HP at 2800 RPM rating, fully mechanical fuel system, propulsion engine w/ ZF marine gear, 2000 hours, test ran OK.
Caterpillar 3126 Marine Turbo Diesel Engine Specifications
- Engine Model: Caterpillar 3126 / 3126B Marine
- Configuration: Inline 6-cylinder, 4-stroke diesel
- Horsepower: 350 bhp (261 bkW)
- Rated Engine Speed: 2800 RPM
- Displacement: 7.2 Liters (442 cubic inches)
- Aspiration: Turbocharged and Aftercooled (TA)
- Bore x Stroke: 110 mm x 127 mm (4.33 in x 5.0 in)
- Compression Ratio: 15.5:1 to 16.5:1
- Rotation: Counterclockwise (from flywheel end)
- Governor / Fuel System: Mechanical governor (Arrangement #179-0782) or HEUI electronic control, depending on specific build tier.
- Emissions Standard: IMO Tier I compliant






















oliver –
Communication was smooth as butter. Super fast responses and totally honest about the engine’s actual condition. Highly recommended!