G8.3E and GTA8.3SLB
Gas Compression Applications
Model
Pages
G8.3E..................... 2-5
99-118 hp (74-88 kW)
GTA8.3SLB............ 6-9
175 hp (131 kW)
G8.3E
Gas Compression Applications
Wellhead compression and artificial lift applications
require reliability and durability not found in every small
natural gas engine. For dependable operations and
world class support, you need Cummins G8.3E – an
emissions compliant, high-performance natural gas
engine that shares the proven heritage of the Cummins
C Series diesel engines and many of the same heavyduty components. You can depend on the G8.3E to
stay emissions compliant, keep maintenance costs
down and the gas flowing. Every day.
Features
General Specifications
Inline 6-Cylinder, 4-Cycle, Natural Gas
Air/Fuel Ratio Control – Oxygen sensor-based
air/fuel ratio control maintains emissions rate and
fuel consumption. Digital display shows O 2 , control
valve position, fault codes, other engine parameters
and provides for user input.
Bore
4.49 in (114 mm)
Stroke
5.32 in (135 mm)
Displacement
8.3 L (505 cubic in)
Engine Power*
99-118 hp (74-88 kW)
Compression Ratio
10.5:1
Aspiration
Naturally aspirated
Exhaust Type
Dry or watercooled
manifold
Weight**
1480 lb (671 kg)
Coolant Capacity
2.9 gal (10.9 L)
Lube Oil Capacity
6.5 gal (32.0 L)
Rotation
Counterclockwise_
* Rating dependent
** Weight is approximate and varies with options.
COMPLIANT CAPABLE – This engine is capable of
meeting the SI NSPS regulations from the factory. However,
the owner/operator is required to conduct site compliance
testing and submit documentation per the EPA SI NSPS
requirements. Engines with the “E” designation include a
factory-supplied air/fuel ratio controller and a Cummins
Emission Solutions Three-Way Catalyst.
Designed for the oil and gas market, the G8.3E
delivers exceptional dependability and low cost of
operation.
Base Engine – Most major components, including
block, crank and liners are common with the proven
C series diesel.
Emissions – Rich burn combustion with a Cummins
3-way catalyst deliver NSPS compliant emissions
down to 0.5 gr/hp hr NOx.
Air Handling – Naturally aspirated design delivers
reliable performance and life.
Fuel System – AFR control system provides stable
operation and fuel tracking through all load ranges.
Speed Control – ECM based speed control with
integrated throttle body and actuator provides
precise and stable speed control under all load
conditions.
Ignition System – Cummins Programmable Control
Ignition Module provides precision timing control
and delivers proven reliable performance through all
load conditions.
Lubrication System – High-capacity oil pan and
combination full-flow and bypass oil filter reduces
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.
Rating Details.
Model
Curve
Number
Rating
G8.3E
G8.3E
G8.3E
G8.3E
G8.3E
G8.3E
G8.3E
G8.3E
FR-92669
FR-92820
FR-92670
FR-92824
FR-93002
FR-93003
FR-93000
FR-93001
118 hp @
118 hp @
99 hp @
99 hp @
118 hp @
118 hp @
99 hp @
99 hp @
Exhaust
Wet /
Dry
NOx / CO / VOC
(g/hp-hr) (1)
Combustion
Cummins Catalyst
Part Number
Dry
Wet
Dry
Wet
Dry
Wet
Dry
Wet
2.0 / 4.0 / 1.0
2.0 / 4.0 / 1.0
2.0 / 4.0 / 1.0
2.0 / 4.0 / 1.0
0.5 / 4.0 / 1.0
0.5 / 4.0 / 1.0
0.5 / 4.0 / 1.0
0.5 / 4.0 / 1.0
Rich
Rich
Rich
Rich
Rich
Rich
Rich
Rich
204506A
204506A
204506A
204506A
204507A
204507A
204507A
204507A
Emissions
Export Only
Export Only
Export Only
Export Only
EPA Compliant Capable*
EPA Compliant Capable*
EPA Compliant Capable*
EPA Compliant Capable*
(1) Catalyst out emissions.
* Requires EPA site validation testing.
Standard Equipment.
Air Inlet System
ƒ Factory installed heavy duty air cleaner
Cooling System
ƒ Gear driven jacket water pump
ƒ Thermostat controlled jacket water circuit
ƒ Coolant filter for added corrosion protection
ƒ Auxiliary coolant pump optional for compressor
cooling
Exhaust System
ƒ Tuned dry manifold for optimal exhaust flow
Fuel System
ƒ Impco® carburetor
ƒ Fuel Regulator
ƒ Cummins proprietary air fuel ratio control with
optimized control algorithm
ƒ Full authority AFR fuel control valve
Speed Control System
ƒ Electronic Control Module based speed control
ƒ 0-5V, 4–20mA or Potentiometer speed inputs
available
ƒ Electronic Governor
Digital Display
ƒ Air Fuel Ratio (AFR) system status
ƒ Engine fault codes with history
ƒ Warning and shutdown information
ƒ User interface eliminates the need for a laptop for
engine adjustment or commissioning
Lube Oil System
ƒ Crankcase breather
ƒ High capacity oil pan for extended oil drain
intervals
ƒ Combination full flow and bypass oil filter
Safety Shutoff Protection
ƒ Intake manifold temperature
ƒ Engine coolant temperature
ƒ Oil pressure and temperature
ƒ Overspeed
ƒ Catalyst inlet temperature
ƒ Catalyst differential temperature
Mounting Arrangement
ƒ Four point mounting
ƒ Lift provisions on engine
Flywheels and Flywheel Housings
ƒ Flywheel SAE # 3
ƒ Flywheel housing – SAE #3 Cast-iron, machined
to accommodate starter mounting
ƒ SAE #2 and SAE #1 FW/FH options available
Electrical System
ƒ 24-volt alternator
Starting System
ƒ 24-volt starter
Power Take-Off
ƒ Front crankshaft pulley
ƒ Front stub shaft optional
Engine Technical Data.
Model
G8.3E
G8.3E
Curve Number
FR-93002 (2)
FR-93003 (2)
Exhaust Type
Dry
Watercooled
Output Power
100%
HP (kW)
118 (88)
118 (88)
75%
HP (kW)
89 (66)
89 (66)
Engine Speed
100%
RPM
1800
1800
Max Turn Down
RPM
1350
1350
10.5:1
10.5:1
Compression Ratio
Emissions Data – Catalyst-Out Emissions – Catalyst Dependent
NOx
g/hp-hr (ppm)
0.5 (100)
0.5 (100)
CO
g/hp-hr (ppm)
4 (1283)
4 (1283)
VOC
g/hp-hr
1 (451)
1 (451)
100%
BTU/hp-hr (MJ/kW-hr)
8455 (12)
8455 (12)
75%
BTU/hp-hr (MJ/kW-hr)
9110 (13)
9110 (13)
Jacket Water
BTU/min (kW)
4592 (81)
5397 (95)
Exhaust
BTU/min (kW)
4101 (72)
3819 (67)
Flow Rate
ft3/min (L/s)
442 (209)
442 (209)
Stack Temp
°F (°C)
1342 (728)
1170 (632)
Max Back Pres.
in-Hg
2
2
Flow Rate
ft3/min (L/s)
174 (82)
174 (82)
Max Restriction
in-H 2 O
15
15
7-25
7-25
Fuel Consumption
Heat Rejection
Exhaust System
Intake System
Gas Pressure
Min - Max
psi
General Dimensions.
Length
Width
Height
Dimensions*
Inches (mm)
52.8 (1342)
Inches (mm)
29.6 (751)
Inches (mm)
54.4 (1381)
* Dimensions are approximate and vary with options.
Disclaimers.
(2) All data is based on the engine operating with fuel system, water pump, and 6 in H2O (1.49 kPa) inlet air restriction with 3 in (76
mm) inner diameter, and with 1 in Hg (3 kPa) exhaust restriction with 3 in (76 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.
Cummins Inc.
Box 3005
Columbus, IN 47202-3005
U.S.A.
Phone: 1-800-DIESELS™ (1-800-343-7357)
Internet: cumminsengines.com
Twitter.com/CumminsEngines
YouTube.com/CumminsEngines
Bulletin 4087377 Printed in U.S.A. 1/15
©2015 Cummins Inc.
GTA8.3SLB
Gas Compression Applications
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 highperformance 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 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 (131 kW)
Compression Ratio
8.5:1
Aspiration
Turbocharged and
aftercooled
Exhaust Type
Dry manifold
Weight**
1650 lb (748 kg)
Coolant Capacity
2.9 gal (10.9 L)
Lube Oil Capacity
6.5 gal (32.0 L)
Rotation
Counterclockwise
* Rating dependent
** Weight is approximate and varies with options.
This engine emits 2.0 gr/hp-hr NOx, 4.0 gr/hp-hr CO, 1.0
gr/hp-hr VOC.This engine does not meet the revised EPA
SI NSPS requirements for non-emergency engines and is
offered only for use outside the U.S.
Features
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 engine capable
of 2 gr/hp-hr. Engine for export only.
Air/Fuel Ratio Control – Oxygen sensor-based
air/fuel ratio control maintains emissions rate and
fuel consumption. Display shows O 2 , 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.
Rating Details.
Model
Curve
Number
GTA8.3SLB
FR-92280
Rating
NOx / CO / VOC
(g/hp-hr) (1)
Combustion
Emissions
175 hp @ 1800 rpm
2.0 / 4.0 / 1.0
Lean Burn
Export Only
(1) Engine out emissions
Standard Equipment.
Air Inlet System
ƒ Factory installed heavy duty air cleaner
Cooling System
ƒ Two pump / two loop cooling system
ƒ Gear driven jacket water pump
ƒ Gear driven auxiliary coolant pump
ƒ Coolant filter for added corrosion protection
ƒ Thermostat controlled jacket water circuit
Exhaust System
ƒ Tuned dry manifold for optimal exhaust flow
Fuel System
ƒ Impco® carburetor
ƒ Fuel Regulator
ƒ Cummins proprietary air fuel ratio control with optimized
control algorithm
ƒ Full authority Air Fuel Ratio (AFR) fuel control valve
Speed Control System
ƒ (lectronic *overnor
Digital Display
ƒ AFR system status
ƒ Engine fault codes with history
ƒ Warning and shutdown information
ƒ User interface eliminates need for a laptop for engine
adjustment or commissioning
Lube Oil System
ƒ Crankcase breather
ƒ High capacity oil pan for extended oil drain intervals
ƒ Combination full flow and bypass oil filter
Safety Shutoff Protection
ƒ Intake manifold temperature
ƒ Low oil pressure
ƒ Overspeed
Mounting Arrangement
ƒ Four point mounting
ƒ Lift provisions on engine
Flywheels and Flywheel Housings
ƒ Flywheel SAE #3
ƒ Flywheel housing – SAE #3 Cast-iron, machined to
accommodate starter mounting
SAE
#2 and SAE #1 FW/FH options available
ƒ
Electrical System
ƒ 24-volt alternator
Starting System
ƒ 24-volt starter
Power Take-Off
ƒ Front crankshaft pulley
ƒ Front stub shaft optional
Engine Technical Data.
Model
GTA8.3SLB
Curve Number
FR-92280 (2)
Exhaust Type
Dry Manifold
Output Power
100%
HP (kW)
175 (130)
75%
HP (kW)
131 (98)
100%
RPM
1800
Max Turn Down
RPM
1350
Engine Speed
Aftercooler Water Inlet Temperature
°F (°C)
Compression Ratio
130 (54.4)
8.5:1
Emissions Data – Engine-Out Emissions
NOx
g/hp-hr (g/kW-hr)
2.0 (2.68)
CO
g/hp-hr (g/kW-hr)
4.0 (5.36)
NMHC
g/hp-hr
1.0
THC
g/hp-hr
2.51
100%
BTU/hp-hr (MJ/kW-hr)
8150 (12)
75%
BTU/hp-hr (MJ/kW-hr)
8600 (12)
Jacket Water
BTU/min (kW)
4700 (83)
Aftercooler
BTU/min (kW)
1346 (24)
Exhaust
BTU/min (kW)
8118 (143)
ft3/min (L/s)
947 (447)
Fuel Consumption
Heat Rejection
Exhaust System
Flow Rate
Stack Temp
Max Back Pres.
°F (°C)
1359 (737)
in-Hg
2
Flow Rate
ft3/min (L/s)
443 (209)
Max Restriction
in-H 2 O
15
psi
7-25
Intake System
Gas Pressure
Min - Max
General Dimensions.
Length
Width
Height
Dimensions*
Inches (mm)
59.7 (1516)
Inches (mm)
34.4 (875)
Inches (mm)
52.1 (1324)
* Dimensions are approximate and vary with options.
Disclaimers.
(2) 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.
Cummins Inc.
Box 3005
Columbus, IN 47202-3005
U.S.A.
Phone: 1-800-DIESELS™ (1-800-343-7357)
Internet: cumminsengines.com
Twitter.com/CumminsEngines
YouTube.com/CumminsEngines
Bulletin 4087378 Printed in U.S.A. 1/15
©2015 Cummins Inc.