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Industrial Diesel Engines - Lesser Regulated & Non-Regulated

Cat® industrial engines are ready for your application. These engines deliver the unsurpassed reliability, durability, fuel efficiency, and low cost of ownership you have come to expect from Caterpillar. And our world-class product support will never let you down. All this adds up to a powerful advantage for you. Every Cat industrial diesel and gas engine comes with 75 years of engine experience. Our world-class product line of high-speed and medium-speed industrial engines in a wide range of applications offer power solutions for the most demanding installations and the harshest environments. With power options from 8.2 to 6,100 bkW (11 to 8,180 bhp), Cat industrial diesel and gas engines offer the widest power range in the industry.

Cat® 3508 Diesel Engine

The Cat® 3508 Industrial Diesel Engine is offered in ratings ranging from 507-746 bkW (680-1000 bhp) @ 1200-1800 rpm. These ratings are non-certified and are available for global non-regulated areas. Industries and applications powered by 3508 engines include: Bore/Drill Rigs, Chippers/Grinders, Construction, Cranes, Dredgers, Forestry, General Industrial, Material Handling, Mining, Mobile Earthmoving Equipment, Pumps, Shovels/Draglines, Surface Hauling Equipment and Trenchers.

Product Details

Power Rating

Minimum Power 507.0 bkW
Maximum Power 746.0 bkW
Rated Speed 1200-1800 rpm

Emission Standards

Emissions Non-certified


Engine Configuration V-8, 4-Stroke-Cycle Diesel
Bore 170 mm (6.7 in)
Stroke 190 mm (7.5 in)
Displacement 34.53 L (2107 in³)
Aspiration Turbocharged Aftercooled
Compression Ratio 13.0:1
Rotation (from flywheel end) Counterclockwise
Lube System (refill) 424 L (448 qt)

Engine Dimensions (Approximate. Final dimensions dependent on selected options)

Length 2136 mm (84 in)
Width 1703 mm (67 in)
Height 1720 mm (68 in)
Weight, Net Dry (Basic Operating Engine Without Optional Attachments) 4309 kg (9500 lb)
  • Air Inlet System
    •  Aftercooler core, corrosion resistant coated (air side)
    •  Air cleaner. Regular duty, dry, panel type with service indicators, turbocharger, jacket water aftercooled.
    •  Turbocharger, rear mounted
    •  Jacket water aftercooled
  • Aftercooler core, corrosion resistant coated (air side)
    • Air cleaner. Regular duty, dry, panel type with service indicators, turbocharger, jacket water aftercooled.
      • Turbocharger, rear mounted
        • Jacket water aftercooled
          • Control System
            •  Governor, RH, 3161 with self contained synthetic oil sump
            •  Air-fuel ratio control
            •  Mechanical speed control, without torque control
            •  Governor control
            •  Positive locking
          • Cooling System
            •  Thermostats and housing
            •  Jacket water pump, centrifugal
          • Exhaust System
            •  Exhaust manifold, dry
          • Flywheels and Flywheel Housing
            •  SAE No. 0 flywheel
            •  151 flywheel teeth
            •  SAE No. 0 flywheel housing
            •  SAE standard rotation
          • Fuel System
            •  Fuel filter, with service indicators, cartridge type with RH service
            •  Fuel transfer pump
          • Instrumentation
            •  Instrument Panel, RH
            •  Engine oil pressure gauge
            •  Fuel pressure gauge
            •  Oil filter differential gauge
            •  Jacket water temperature gauge
            •  Service meter, electric
            •  Tachometer
          • Lube System
            •  Crankcase breather, top mounted
            •  Oil cooler
            •  Oil filler
            •  Oil dipstick
            •  Oil pump
            •  Oil filter, cartridge type with RH service
            •  Shallow oil pan
            •  Fumes disposal (not installed)
          • Crankcase breather, top mounted
            • Oil cooler
              • Oil filler
                • Oil dipstick
                  • Oil pump
                    • Oil filter, cartridge type with RH service
                      • Shallow oil pan
                        • Fumes disposal (not installed)
                          • Mounting System
                            •  Rails, mounting, engine length, 254 mm (10 in), industrial-type, C-channel.
                            •  Included on selected top level engines
                          • Power Take Off
                            •  Accessory drive, upper RH
                            •  Front housing, single sided
                          • Protection System
                            •  Junction box
                            •  Manual shutoff, RH
                            •  Safety shutoff protection, energized to shutdown
                            •  Low oil pressure, low idle 69 kPa (10 psi); high idle 207 kPa (30 psi)
                            •  Water temperature
                            •  Overspeed
                            •  3161 governor solenoid energized to shutdown
                          • Starting System
                            •  Starting switch
                          • Starting switch
                            • General
                              •  Vibration damper
                              •  Lifting eyes
                              •  Paint: Caterpillar yellow, with optional colors available at request
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