Caterpillar 3508 Diesel Engine

Industrial / Oilfield Configuration

General

• Manufacturer: Caterpillar

• Engine Model: CAT 3508

• Engine Type: V8, 4-stroke diesel

• Aspiration: Turbocharged & aftercooled

• Fuel System: Mechanical unit injection (early) or electronic (later variants)

• Engine Management: Mechanical governor or CAT ECM (model dependent)

• Duty Rating: Continuous heavy-duty industrial / oilfield

Performance Ratings (Typical Industrial / Oilfield)

• Rated Power: 800 – 1,100 HP

• Rated Speed: 1,200 – 1,800 RPM

• Peak Torque: 3,500 – 4,500 lb-ft

• Torque Rise: ~30%

Common Oilfield Ratings

• 900 HP @ 1,200 RPM

• 1,050 HP @ 1,800 RPM

(Exact rating depends on arrangement & fuel setting)

Engine Specifications

• Displacement: 2,109 in³ (34.5 L)

• Bore: 6.69 in (170 mm)

• Stroke: 7.48 in (190 mm)

• Compression Ratio: ~15.5:1

• Configuration: 90° V8

• Rotation: Counterclockwise (flywheel end)

Cooling & Lubrication

• Cooling: Jacket water cooled

• Lubrication: Full-pressure system

• Oil Capacity: ~30 – 35 gallons

• Oil Filtration: Full-flow & bypass filters