3508C Propulsion Engine

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The 3508C marine propulsion engine meets IMO II emissions regulation and delivers more power with lower emissions for your marine propulsion needs. Additionally, the 3508C provides outstanding fuel efficiency and lube oil consumption. Standard or reverse rotation options are available as well as worldwide parts and service. The 3500 engine platform is a streamlined and proven design that provides industry-leading reliability & durability.

Pricing: Contact for Pricing

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Standard Equipment:

  • Fuel System
    • Fuel filter, RH, with service indicators.
    • Fuel transfer pump.
    • Electronically controlled init injectors
  • Instrumentation
    • Graphical Unit (Marine Power Display) for analog or digital display of
  • Lube System
    • Crankcase breather, Top mounted
    • Oil filter, RH, with service indicators
    • Oil filler and dipstick, RH
    • Standard sump oil pan (500 Hour oil change interval)
    • Oil pump, gear type
  • Mounting System
    • Rails, engine mounting, ledge type, 203 mm x 203 mm (8 in x 8 in)
  • Power Takeoffs
    • Accessory drive
    • Front housing, two-sided
  • Protection System
    • A4 ECU Electronic Monitoring System provides customer programmable engine de-rate strategies to protect against adverse operating conditions
    • AIII Electronic Monitoring System provides customer programmable engine de-ration strategies to protect against adverse operating conditions
    • Emergency stop push button (located in Electronic Instrument Panel) Safety shutoff protection:
  • General
    • Vibration damper and guard
    • Lifting eyes
    • Paint, Caterpillar Yellow engine with black rails
    • NOTE: Engines for heat exchanger cooling do NOT include heat exchanger.
  • Flywheel And Flywheel Housing
    • Flywheel, SAE No. 0, 151 teeth.
    • Flywheel housing, SAE No. 0.
  • Air Inlet System
    • Separate circuit aftercooler core, corrosion resistant coated (air side)
    • Air cleaner, regular duty
    • Dual turbochargers, 152 mm (6 in) OD straight connection
  • Control System
    • Dual Caterpillar A-III Electronic Engine Control, LH with Electronic Unit Injector Fuel System
    • Rigid Wiring Harness (10 amp DC power required to drive Electronic Engine Control Module)
  • Cooling System
    • Oil cooler
    • Thermostats and housing, Full open temperature 92 C (198 F)
    • Jacket water pump, gear driven, centrifugal
    • Auxiliary fresh water pump with SCAC engines
    • Auxiliary sea water pump, Centrifugal, Non-self-priming
    • Expansion tank
  • Exhaust System
    • Dry gas tight exhaust manifolds with heat shields.
    • Dual turbochargers with watercooled bearings and heat shield.
    • Exhaust outlet, vertical, 203 mm (8 in) round flanged.

Optional Equipment:

  • Charging System
    • Battery Charger, 10 amp
    • Charging Alternators
  • Cooling System
    • Water Level Switch Gauge
    • Coolant Level Sensors
    • Connections
    • Keel Cooling Conversions
    • Heat Exchangers
    • Auxiliary Water Pumps
    • Sea Water Pump Removal
    • Coolant Shunt Tanks
    • Air Separator
    • Marine Gear Cooling
  • Instrumentation
    • PL1000T Communication Module
    • Customer Interface
    • Thermocouples
    • Remote Panel Display
    • Remote Cylinder Temperature Display
    • Pilot House Instrument Panels
    • Marine Gear Sensors
    • Engine Vision Display System
  • Mounting System
    • Engine Supports
    • Vibration Isolators
  • Power Take-offs
    • Front Housing Accessories
    • Flexible Coupling and Guards
    • Upper Left Hand Front Location:
    • Upper Right Hand Front Location:
    • Upper Right Hand Rear Location:
    • Lower Left Hand Front Location:
    • Lower Left Hand Rear Location:
    • Front Housing Accessory Drives
    • Upper LH Accessory Drive
    • Upper RH Accessory Drive
    • Front Power Take Offs
    • Crankshaft Pulleys
    • Damper Guard Removals
  • Air Inlet System
    • Remote Air Inlet Adapters
  • Control System
    • Throttle Position Sensor
    • Throttle Position Signal Conv.
    • Throttle Position Sensor Removal
    • Local Speed Throttle Control
    • Throttle Synchronization
  • Exhaust System
    • Exhaust Outlet
    • Flexible Fittings
    • Elbows
    • Flanges
    • Flange and Exhaust Expanders
    • Mufflers
  • Lube System
    • Oil Pan
    • Oil Pan Accessories
    • Sump Pumps
    • Lubricating Oil
  • Protection System
    • Air Inlet Shutoffs
    • Switches and Contactors
    • Explosion Relief Valve
    • Sensors
  • Special Appearance
    • Special Appearance Packages with Chrome Covers
    • Chrome Plated Relief Valves
    • Black Air Cleaners
    • Yacht Class Finish
  • Starting System
    • Starting Motors or Barring Device
    • Air Starting Motor Options:
    • Starting Aids
    • Battery Sets - 24 Volt - Dry
    • Battery rack
  • General
    • Tool set
    • Caterpillar datalink wire
  • Packing
    • Shrink Wrap Protection
    • Storage Preservation with Glycol Solution/Vapor Corrosion Inhibitor
    • Storage Preservation with Vapor Corrosion Inhibitor
    • Export Packaging
Renee HerndonRenee Herndon
21:55 29 Feb 24
Dalton was very helpful, The road construction, however, was not! 😂I would rather have to sand paper an alligators @$$ in a phone booth that to get in that mess again.
Michael BirrenMichael Birren
14:58 24 Feb 24
I purchased a used C-15 from a customer of Greg Pool was a running take out. I picked up the engine from the Greg Pool Cat near Nags Head NC. They started they had done all service on this engine stated the hours and all items replaced during the life of engine under their care. I just recently put the engine in my boat after 2 years of building the vessel I find that everything they said about the engine was a LIE!!! Turbo was Bad, After cooler was not updated to the newer version for the C-15 it was missing a terminal Resistor that was clearly stolen off the engine which created a major issue with start up upon installation. Greg Pool Caterpillar stated the hours at 3300 we find out there were 5700 hours. I didn’t do a start up or test run which I regret because i was dealing with a Caterpillar dealer i thought i could trust them. Clearly not Buyers Be Ware if your dealing with Greg Pool Caterpillar in NC. I have 3 of the C-15 engines in my Work boats here in Tampa Fl and my Cat dealership here is Ring power who have done an amazing job to get me going with this Engine. I am very Disappointed in The Caterpillar company for allowing such A dealership to exist.
David LawrenceDavid Lawrence
13:04 22 Feb 24
Brandon PierceBrandon Pierce
22:00 18 Feb 24
Darin NoeDarin Noe
01:17 16 Feb 24
Jose SotoJose Soto
15:26 23 Sep 23
Hunter ElliottHunter Elliott
16:17 07 Sep 23
Rick Kelly-CrapseRick Kelly-Crapse
21:06 25 Aug 23
They had all my parts for my 3208 Cat.Friendly folks at parts counter.
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