KTA19GCSLB Gas Compression Applications

Power 420 - 420 hp
313 - 313 kW


Oil and Gas Gas Compression


Gathering compression applications require power that is reliable, durable and has world class support. It calls for the Cummins KTA19GCSLB – an emissions compliant, high-performance natural gas engine that shares the proven heritage of the Cummins K Series diesel engines and many of the same heavy-duty components. It is no surprise that the KTA19GCSLB has low maintenance cost, stays emissions compliant and keeps the gas flowing. Every day.

General Specifications
V-12, 4 Stroke Diesel

Bore 6.25 in (159 mm)
Stroke 6.25 in (159 mm)
Displacement 18.8 L (1150 cubic in)
Engine Power* 420 hp (313 kW)
Compression ratio 8.5:1
Aspiration Turbocharged and aftercooled
Exhaust Type Watercooled manifold
Weight** 4840 lb (2195 kg)
Coolant capacity 8 gal (30.3 L)
Lube oil capacity 27.0 gal (102.0 L)
Rotation Counterclockwise

* Rating dependent
** Weight is approximate and varies with options.

Engine Technical Data

Model   KTA19GCSLB
Curve Number   FR-4499 (1)
Output Power (1)

HP (kW)
HP (kW)

420 (313)
315 (235)
Engine Speed
Max Turn Down


Aftercooler Water Inlet Temperature °F (°C) 130 (54.4)
Compression Ratio   8.5:1
Emissions Data – Engine-Out Emissions (1)

g/hp-hr (g-kW-hr)
g/hp-hr (g-kW-hr)
2.0 (2.6
4.0 (5.36)
Fuel Consumption (1)

BTU/hp-hr (MJ/kW-hr)
BTU/hp-hr (MJ/kW-hr)
7854 (11)
8252 (12)
Heat Rejection (1)
Jacket Water

BTU/min (kW)
BTU/min (kW)
BTU/min (kW)

15753 (277)
3951 (69)
16283 (286)
Exhaust System (1)
Flow Rate
Stack Temp
Max Back Pres.

ft3/min (L/s)
°F (°C)

947 (459)
1253 (678)
Intake System (1)
Flow Rate
Max Restriction

ft3/min (L/s)

938 (443)
Gas Pressure Min - Max psi 7 - 25

General Dimensions




Length Inches (mm) 81.5 (2070)
Width Inches (mm) 53 (1347)
Height Inches (mm) 73.9 (1876

*Dimensions are approximate and vary with options.








(1) All data is based on the engine operating with fuel system, water pump, and 9 in H2O (2.24 kPa) inlet air restriction with 5 in (127 mm) inner diameter, and with 2 in Hg (7 kPa) exhaust restriction with 6 in (152 mm) inner diameter; not included are alternator, fan, optional equipment and driven components. Coolant flows and heat rejection data based on coolants as 50% ethylene glycol/50% water. All data is subject to change without notice.

Model Curve Number Rating NOx/CO/VOC (g/hp-hr) Combustion
KTA19GCSLB FR-4499 420 hp @ 1800 rpm 2.0/4.0/1.0 Lean Burn

*Requires EPA site validation testing.

Designed for the gas compression market, the KTA19GCSLB delivers exceptional reliability and low cost of operation.

Base Engine – Most major components, including block, crank, cam, gears and liners are common with the proven K19 diesel. Common gas unique components on the KTA19GC and KTA38GC lower your operating cost.

Emissions – Simple Lean Burn (SLB) engine out emissions meets current EPA NSPS regulations at 2 gr/hp hr NOx.

Air/Fuel Ratio Control – Oxygen sensor-based air/fuel ratio control maintains emissions rate and fuel consumption. Display shows O2, control valve position and fault codes and provides for user input.

Air Handling – Turbocharger design delivers maximum performance and life.

Fuel System – Impco varifuel carburetor provides stable operation and fuel tracking through all load ranges.

Speed Control – Integral throttle body electronic governor provides precise and stable rpm control under all load conditions.

Ignition System – Cummins Programmable Control Ignition Module provides precision control and low maintenance with sealed construction and high-voltage output.

Lubrication System – Deep, full-length, high-capacity oil pan. Combination full-flow and bypass oil filters reduce maintenance costs while extending service intervals.

Warranty – Cummins one year, unlimited hours. Backed by a worldwide distributor network.

Standard Equipment

Air Inlet System

  • Factory installed heavy duty air cleaner

Cooling System

  • Two pump / two loop cooling system
  • Gear driven jacket water pump
  • Gear driven auxiliary coolant pump
  • Thermostat controlled jacket water circuit
  • Coolant filter for added corrosion protection

Exhaust System

  • Water-cooled manifold

Fuel System

  • Impco carburetor
  • Fisher S-201 regulator
  • Cummins proprietary air fuel ratio control with optimized control algorithm
  • Full authority AFR fuel control valve

Speed Control System

  • Electronic Control Module (ECM) based speed control
  • 0-5V, 4–20mA or Potentiometer speed inputs available
  • Woodward electronic integral throttle body

Digital Display

  • Air Fuel Ratio (AFR) system status
  • Engine fault codes with history
  • Warning and shutdown information
  • User interface eliminates need for laptop for engine

Lube Oil System

  • Crankcase breather
  • High capacity oil pan for extended oil drain intervals
  • Combination full flow and bypass oil filter

Safety Shutoff Protection

  • Intake manifold temperature
  • Intake manifold pressure
  • Engine coolant temperature
  • Oil pressure
  • Overspeed

Mounting Arrangement

  • Front and rear engine mounting
  • Lift provisions on engine

Flywheel and Flywheel Housing

  • Flywheel SAE #1
  • Flywheel housing – SAE #1 Cast-iron, machined to accommodate starter mounting

Electrical System

  • 24-volt alternator

Starting System

  • 24-volt starter
  • Gas starter optional

Interface Panel

  • Provides simple connection between engines and compressor controls
  • Meets CSA spec

Power Take-Off

  • Front stub shaft

To access our complete brochure library, click here.
Redirecting to

The information you are looking for is on

We are launching that site for you now.

Thank you.