Upgrade Kits

Cat® Dynamic Gas Blending Engine Upgrade Kits

Keep Your Investment Running Strong...

Optimize your fuel savings with Caterpillar.

Cat® Dynamic Gas Blending Engine Upgrade Kits allow you to get the most from fuel combustion through a wide variety of fuel options, from associated gas to gasified LNG.

Why upgrade:

  • 70% gas substitution 
  • Lower operating costs
  • Upgraded controls interface with improved diagnostic capability 
  • Ease of ordering with one part number for the kit
  • Full warranty coverage

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Upgrade Kits Upgrade Kits


Whether you’re looking to start fresh with Tier 4 Final DGB engines or upgrade your existing Tier 2 engines to DGB, we’ve got you covered. Check out the comparison chart below to find the solution that works best for your business.



Cat® 3512E DGB Engine –
Certified to Tier 4 Final Standards*

>> View Engine

Cat 3512C DGB Engine –
Meets Tier 2 Levels


Turnkey, factory-installed solution that includes integrated aftertreatment support – no downtime

Upgrade kits available from your local Cat dealer — allow time for installation

Base Engine

High Pressure Common Rail platform with Exhaust Gas Recirculation – same as Tier 4 Final diesel engine

MEUI-A (Mechanically Actuated Electronically Controlled) platform

Maximum Diesel Displacement



Fuel Range

850-1250 LHV

850-1250 LHV

Combustion Control

Achieved via multiple technologies that combine to maintain emission levels and keep displacement high:

  • In-Cylinder Pressure Sensing (ICPS), which monitors combustion of each cylinder for more precise control
  • Compressor bypass control
  • SOGAVs (gas metering devices)
  • Control software
  • Oxidation catalyst and compression ratio

Achieved via exhaust temperature and knock sensors

Gas System

Individual cylinder gas metering system

Fumigated gas system


Integrated gaseous fuel filtration with pressure monitoring for maintenance notification


Engine Repair Solutions

Cat Engine Repair Solutions

The repair you need at the cost you want.

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My Tools for Well Service

Caterpillar My Tools for Well Service

Gives current customers access to secure, specialized content and engine news.

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Cat® Fluid Ends

Cat Fluid End Replacements

Replacement fluid ends that match Cat well stimulation pumps and select competitor pumps.

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Cat® Valves and Seats

Cat valve and seat replacements

Manufactured for extended periods of operation, to help you lower owning and operating costs.

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Cylinder Head Repair Options

Cylinder Head Repair Kits

Repair kits for admission valves, prechambers and complete rebuilds.

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Cat® Turbocharger

Turbo Repair Options

Featuring an exhaust-resistant turbine nozzle ring.

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Have a Dealer Contact Me

Contact a Cat Dealer

Questions or ready to get started? Fill out this form and a dealer will be in touch with you shortly.

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Well Service Support

Well Service Support

The parts and service you need to keep production high.

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