FOR INDUSTRIAL APPLICATIONS

G/GTA8.3 For Industrial Applications.Cummins natural gas engines are designed and built to makeyou money by maximizing uptime and minimizing maintenancerequirements. The combination of sophisticated air/fuel handling,ignition and electronic engine controls functions as a seamless,integrated system to deliver optimum application efficiency atthe lowest cost. Which makes Cummins the right driver forevery industrial application.

Features And Benefits.Cummins G/GTA8.3 delivers reliable performance with reducedmaintenance. Every time. Because it shares many of the sameheavy-duty components with the highly successful and versatileCummins C Series diesel engine – with millions of C Seriesengines in use around the globe. Here are some of the heavy-duty components that make the G/GTA8.3 the right choice foryour applications:

Base Engine – Major internal components are shared withthe high-volume Cummins C Series diesel engine. Its robustpower cylinder and cylinder head components are designedfor maximum reliability and durability.

Cooling System – High-flow centrifugal pump.

Fuel System – Features a balanced intake manifold for evenfuel distribution. And Impco carburetion for optimum fuelconsumption and stable operation through all load ranges.

Ignition System – Altronic CD1 integral electronic ignitionsystem. Easily accessible spark plug location and single coilper cylinder for lower maintenance costs.

Exhaust System – Performance-tuned exhaust featureslower exhaust temperatures.

Lubrication System – High-capacity 9.25-gallon oil panis standard. Positive pressure lubrication feed to all internalbearing and wear surfaces.

Speed Control – Adjustable pressure-compensatedhydraulic governor provides precise and stable rpm controlunder all load conditions.

Warranty – Cummins one year, unlimited hours.

Optional Equipment.■ Electronic governor

■ Altronic III ignition

■ Shielded ignition

■ SAE #1 and #2 flywheel and housing

■ Water-cooled exhaust manifold on NA ratings

■ Air starter

■ Instrument panel

■ Base rails

SpecificationsENGINE TYPE IN-LINE, 4-CYCLE, NATURAL GAS, NA AND TA MODELS

NUMBER OF CYLINDERS 6

DISPLACEMENT 505 CU IN 8.3 LITERS

BORE AND STROKE 4.49 IN X 5.32 IN 114 MM X 135 MM

ASPIRATION TURBOCHARGED AND AFTERCOOLED

OIL PAN CAPACITY 9.25 U.S. GALLONS 35 LITERS

COOLANT CAPACITY 2.9 U.S. GALLONS 10.9 LITERS

LENGTH 55 IN 1397 MM

WIDTH 30 IN 762 MM

HEIGHT 50 IN 1270 MM

WEIGHT – TA MODELS (DRY) 1,590 LB 721 KG

Ratings GROSS HORSEPOWER (W/O FAN)ENGINE CONTINUOUS RATING HP @ RPMMODEL C/R (NOTE) 1500 1800 2200

G8.3C99 10.5:1 83 99 121G8.3C118 10.5:1 99 118 135

GTA8.3LE 8.5:1 (3) 125 163 –GTA8.3SLB 8.5:1 (4) 135 175 –GTA8.3C175 10.5:1 (1) 135 175 –

8.5:1 (2) 135 175 –GTA8.3C190 10.5:1 (1) 160 200 –

8.5:1 (2) 147 190 –

(1) 90˚F (32˚C) or lower water temperature to aftercooler.

(2) 130°F (54°C) or lower water temperature to aftercooler.

(3) Engine capable of NOx emissions of less than 10 tons per year.

(4) Engine capable of engine out emissions for NOx / CO / NMHC of 4.0 / 2.0 / 1.0 gr/hp hr, respectively.

Additional ratings are available. Check with your Cummins distributor.

All data is based on the engine operating with fuel system, water pump, and 9 in H2O (229 mm H2O)inlet air restriction with 5 in (127 mm) inner diameter, and with 2 in Hg (51 mm Hg) exhaust restrictionwith 6 in (152 mm) inner diameter; not included are alternator, fan, optional equipment and drivencomponents. Coolant flows and heat rejection data based on coolants as 50% ethylene glycol/50%water. All data is subject to change without notice.

Data represents gross engine capabilities obtained and corrected in accordance with SAE J1995 andISO 3046 conditions of 29.61 in Hg (100 kPa) barometric pressure (500 ft [152 m] altitude), 77ºF (25ºC)inlet air temperature and 0.30 in Hg (1 kPa) water vapor pressure using dry processed natural gas fuelwith 1035 BTU per standard cubic foot (38.56 kJ/I) lower heating value. Deration may be required dueto altitude, temperature and type of fuel. Consult Cummins Customer Engineering for operation abovethis altitude.

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G8.3, 10.5:1 CR, 118 hp @ 1800 rpm

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GTA8.3, 8.5:1 CR, 190 hp @ 1800 rpm

Cummins is a pioneer in product improvement. Thus specifications may change without notice. Illustrations may include optional equipment.

Cummins Inc.Box 3005Columbus, IN 47202-3005U.S.A.

Phone: 1-800-DIESELS (1-800-343-7357)Fax: 1-800-232-6393Internet: everytime.cummins.com

Bulletin 4087021 Printed in U.S.A. Rev. 2/07©2007 Cummins Inc.