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336 Excavator

  • Specs Summary

3508 Land Mechanical Drilling Engine

Cat 3508 engines set the standard in the drilling industry. For many years the 3500 has been the preferred choice by drillers due to their high performance, durability, and reliability in the oilfield. The ideal application for the 3508 engine is mechanical drive for land drilling rigs. Cat engines are backed by the worldwide network of Cat dealers ready to support your operation with technical support, service, parts, and warranty. 3508 engines, with ratings: 3508 engines, with ratings: 507-846 bkW (680-1135 bhp) @ 1200-1900 rpm. Not emissions certified, available for non-regulated areas.

Standard Equipment

Flywheel and Housing

  • SAE No. 00 flywheel
  • SAE No. 00 flywheel housing
  • SAE standard rotation

Fuel System

  • Fuel filter
  • Fuel transfer pump
  • Flexible fuel lines
  • Fuel priming pump
  • Primary fuel filter

Lubrication System

  • Crankcase breather
  • Oil cooler
  • Oil filter
  • Shallow oil pan
  • Crankcase fumes disposal
  • Oil drain extension, 2 in NPT female connection
  • Oil pan accessories

Mounting System

  • Rails, mounting, floor type

Power take-offs

  • Accessory drive
  • Front housing, two-sided

General

  • Paint - Cat yellow
  • Vibration damper and guard
  • Flywheel guard
  • Lifting eyes

Optional Equipment

Air Inlet System

  • Corrosion-resistant aftercooler core
  • Heavy duty air cleaner
  • Remote air inlet adapters
  • Regular duty air cleaner
  • Service indicator

Control System

  • Load sharing governor, 2301A
  • Load sharing module
  • Governor, Woodward 3161 — RH
  • Pneumatic control
  • Governor conversion to 0-200 mA direct rack control
  • Local speed throttle control
  • Governor control - positive locking
  • Throttle position sensors

Cooling System

  • Thermostats and housing (dual outlet)
  • High gloss black folded core radiators and conventional core radiators
  • Jacket water pump, gear driven
  • Belt guard
  • Blower fan
  • Fan drive and fan pulley
  • Radiator cover
  • Water level switch gauge
  • Air separator
  • Coolant level sensors
  • Connections

Exhaust System

  • Dry exhaust manifold
  • Exhaust flexible fitting, adapters, and flanges
  • Exhaust elbows
  • Exhaust mufflers

Generator and Attachments

  • Low voltage extension box
  • Potential and current transformers
  • Air filter
  • Cable access box
  • Bearing RTDs

Instrumentation

  • Analog instrument gauges:
  • Customer management device
  • Gauges and instrumentation panels
  • Switches and contactors

Power Take-off

  • Crankshaft pulley
  • Front stub shaft
  • Charging alternator
  • Air compressor

Protection System

  • Manual shutoff control, LH
  • Explosion relief valves (3)
  • Junction box
  • Safety shutoff protection, energized to shutdown
  • Shutoffs
  • Switches and contactors

Starting System

  • Air starting motor
  • Manual air starter
  • Air silencer
  • Air pressure regulator