Cat 3508 Diesel Fire Pump Engine. Ratings: 709-794 bkW (950-1065 bhp) @ 1460-1750 rpm are non-certified, not FM Approved, and not UL Listed. They are available for global non-regulated areas.

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Engine Specifications
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Minimum Rating 950.0 BHP 709.0 bkW
Maximum Rating 1065.0 BHP 795.0 bkW
Emissions Non-certified Non-certified
Bore 6.7 in 170.0 mm
Stroke 7.5 in 190.0 mm
Displacement 2105.0 in³ 34.5 l
Aspiration Turbocharged Aftercooled Turbocharged Aftercooled
Engine Weight - Net Dry 11806.0 lb 5355.0 kg
Rotation from Flywheel End Counterclockwise Counterclockwise
Flywheel and Flywheel Housing SAE No. 0 SAE No. 0
Flywheel Teeth 151 151

Reliable, Quiet and Durable Power

World-class manufacturing capability and processes coupled with proven core engine designs assure reliability, quiet operation, and many hours of productive life.


Every Cat engine is manufactured to stringent quality standards in order to assure customer satisfaction.

World-class Product Support Offered Through Global Cat Dealer Network

  • Scheduled maintenance, including SOSSM sample
  • Customer Support Agreements (CSA)
  • Caterpillar Extended Service Coverage (ESC)
  • Superior dealer service network
  • Extended dealer service network through the Cat Industrial Service Distributor (ISD) program

3508 Standard Equipment

Air Inlet System
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  • Air cleaner. Regular duty, dry, panel type with service indicators, turbocharger, jacket water aftercooled.
  • Turbocharger, rear mounted
  • Jacket water aftercooled

3508 Optional Equipment

Cooling System
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  • Emergency water connections