Caterpillar 3306 Diesel Engine – Specifications

General

• Manufacturer: Caterpillar

• Engine Model: 3306

• Engine Type: Inline 6-cylinder, 4-stroke diesel

• Aspiration: Naturally aspirated or turbocharged (configuration dependent)

• Fuel Type: Diesel

• Duty Rating: Continuous industrial / oilfield service

Performance (Typical Ratings)

(Exact rating depends on arrangement, aspiration, and governor)

• Rated Power: 170 – 325 HP

• Rated Speed: 1,200 – 2,100 RPM

• Peak Torque: ~600 – 1,000 lb-ft

• Torque Rise: ~25–30%

Common Industrial Ratings

• 170–185 HP @ 1,200 RPM (NA)

• 210–250 HP @ 1,800 RPM (NA)

• 275–325 HP @ 1,800–2,100 RPM (turbocharged)

Engine Specifications

• Configuration: Inline 6

• Displacement: 638 in³ (10.5 L)

• Bore: 4.75 in (121 mm)

• Stroke: 5.00 in (127 mm)

• Compression Ratio: ~15.5:1

• Firing Order: 1-5-3-6-2-4