GTA8.3SLB Gas Compression Applications

Power 175 - 175 hp
130 - 130 kW


Oil & Gas Engines Gas Compression


Wellhead compression applications require reliability and durability not found in every natural gas engine. For dependable operations and world class support, you need the Cummins GTA8.3SLB – an emission compliant, high-performance natural gas engine that shares the proven heritage of the Cummins C Series diesel engines and many of the same heavy-duty components. You can depend on the GTA8.3SLB to stay emissions compliant, keep maintenance costs down and the gas flowing. Every day.

General Specifications
Inline 6-Cylinder, 4-Cycle, Natural Gas

Bore 4.49 in (114 mm)
Stroke 5.32 in (135 mm)
Displacement 8.3 L (505 cubic in)
Engine Power* 175 hp (130 kW)
Compression ratio 8.5:1
Aspiration Turbocharged and aftercooled
Exhaust Type Dry manifold
Weight** 1650 lb (748 kg)
Lube oil capacity 8.5 gal (32.0 L)
Rotation Counterclockwise

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

Engine Technical Data

Model   GTA8.3SLB
Curve Number   FR-93002 (2)
Exhaust Type   Dry
Output Power (1)

HP (kW)
HP (kW)

175 (130)
131 (98)
Engine Speed
Max Turn Down


Aftercooler Water 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 (2.68)
4 (5.36)

Fuel Consumption (1)

BTU/hp-hr (MJ/kW-hr)
BTU/hp-hr (MJ/kW-hr)

8150 (12)
8600 (12)
Heat Rejection (1)
Jacket Water

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

4700 (83)
1346 (24)
8118 (143)
Exhaust System (1)
Flow Rate
Stack Temp
Max Back Pres.

ft3/min (L/s)
°F (°C)

947 (447)
1359 (737)
Intake System (1)
Flow Rate
Max Restriction

ft3/min (L/s)

443 (209)
Gas Pressure Min - Max in-H2O 7-25

 General Dimensions
GTA8.3 Dimensions

Dimensions*   NA
Length Inches (mm) 59.7 (1516)
Width Inches (mm) 34.4 (875)
Height Inches (mm) 52.1 (1324)

* Dimensions are approximate and vary with options.

(1) All data is based on the engine operating with fuel system, water pump, and 8 in H2O (1.99 kPa) inlet air restriction with 4 in (102 mm) inner diameter, and with 1 in Hg (3 kPa) exhaust restriction with 4 in (102 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) (1) Combustion
GTA8.3SLB FR-92280 175 hp @ 1800 rpm 2.0 / 4.0 / 1.0 Lean Burn

(1) Engine out emissions.
* EPA Certified

Designed for the oil and gas market, the GTA8.3SLB delivers exceptional dependability and low cost of operation.

Base Engine – Most major components, including block, crank, cam, gears and liners are common with the proven C series diesel.

Emissions – Lean burn combustion EPA certified to the 2008 SI NSPS emissions. Site validation test is not required.

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 – Turbocharged and aftercooled design delivers reliable performance and life.

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

Speed Control – ECM based speed control and an integral throttle body and actuator provides precise and stable rpm control under all load conditions.

Ignition System – Cummins Programmable Control Ignition Module provides precision control by cylinder and optimal spark-voltage output for superior combustion control.

Lubrication System – High-capacity oil pan and combination full-flow and bypass oil filter reduce maintenance costs and extend service intervals.

Commonality – All electronic Cummins gas compression engines utilize common AFR control components and strategy to minimize parts and maximize technician effectiveness.

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
  • Coolant filter for added corrosion protection
  • Thermostat controlled jacket water circuit

Exhaust System

  • Tuned dry manifold for optimal exhaust flow

Fuel System

  • Impco carburetor
  • Fisher S-302 regulator
  • Cummins proprietary air fuel ratio control with optimized control algorithm
  • Full authority Air Fuel Ratio (AFR) fuel control valve

Speed Control System

  • Woodward 1724 electronic governor

Digital Display

  • AFR system status
  • Engine fault codes with history
  • Warning and shutdown information
  • User interface eliminates need for a laptop for engine adjustment or commissioning

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
  • Low oil pressure
  • Overspeed

Mounting Arrangement

  • Four point mounting
  • Lift provisions on engine

Flywheels and Flywheel Housings

  • Flywheel SAE #3
  • Flywheel housing – SAE #3 Cast-iron, machined to accommodate starter mounting
  • SAE #2 and SAE #1 FW/FH options available

Electrical System

  • 24-volt alternator

Starting System

  • 24-volt starter

Power Take-Off

  • Front crankshaft pulley
  • Front stub shaft optional

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.