FUEL/EMISSIONS STRATEGY • Capable of NSPS SI emissions site compliance1 • Proper air-fuel-ratio-control and three way catalyst provided to reduce emissions • Customer's responsibility to complete site-specific emissions demonstrating compliance to US EPA NSPS CAT® G3306B TA GAS ENGINE • Robust high speed diesel block design provides prolonged life and lower owning and operating costs • Designed for maximum performance on effective low pressure gaseous fuel supply • Simple open chamber combustion system for reliability and fuel flexibility CAT EMCP 4.4 CONTROL PANEL • Fully featured power metering, protective relaying, and engine/generator control and monitoring • Simple user friendly interface and navigation • Automatic set-point adjustment integrated with voltage and frequency changes CAT GENERATOR • Cat SR4B 445 frame generator designed to match performance and output characteristics of the Cat gas engine • 4 pole, permanent magnet excitation, random wound • Segregated AC/DC, low voltage accessory box provides single point access to accessory connections CAT DIGITAL VOLTAGE REGULATOR (Cat DVR) • Three-phase sensing with adjustable volts-per-hertz regulation • Provides precise control, excellent block loading, and constant voltage in the normal operating range ENCLOSURE • Highly corrosion resistant 12 gauge sheet steel construction • Two coat polyester powder-coated finish • Four access doors for ease of maintenance • Secure and safe design with safety glass control panel viewing window with pad-lockable access door • Certified single point lifting eye and lifting points on the base frame DISTRIBUTION PANEL • 480/277V 3 phase • 240/139/208/120 3 phase REAR CUSTOMER ACCESS • Separate control panel and distribution panel access doors • Hinged door over main bus connectors w/safety switch • Emergency stop on panel • Remote start/stop contacts ENVIRONMENTALLY FRIENDLY • Capable NSPS SI emissions site compilant • 110% spill containment of onboard engine fluids • Meets 80 dB(A) at 7 m per SAE J1074 RENTAL READY FEATURES • Anti-condensation heater 110-120 VAC • Coolant heater 110-120 VAC • UL Listed battery charger • Full package CSA certification COOLING SYSTEM • Provides 40 C (122 F) ambient capability with 0.5 g/bhp-hr NOx per NSPS 2010 at 100% continuous rating before derate Further compliance/certification details to be presented at March 2013 Cat Rental Meeting

Less than 50 Less than 5% TECHNICAL DATA* •Materials and specifications are subject to change without notice. Data is at standard conditions

FUEL USAGE GUIDE** **Table advises air-fuel ratio control required for maximum rating. STANDARD FEATURES Controls - Run/Auto/Stop - Speed Adjust - Voltage Adjust Engine Monitoring EMCP 4.4 LOCAL CONTROL PANEL • Generator mounted EMCP 4.4 provides power metering, protective relaying and engine and generator control and monitoring. • NEMA 12, IP44 Dust Proof Enclosure • UL508A Listed • Convenient service access for Cat Service tool (service tools not included) • Integration with the Cat DVR provides enhanced system monitoring • Ability to view and reset diagnostics of all controls networked on...

• Temperature controlled clutch fan • Tandem axle trailer with electric brakes • Battery heaters • Fumes disposal heat wrap • Dual JWH • Vertical discharge louver • Control panel heater • Oil pan heater • Snow intake louvers • DC lights RATING DEFINITIONS AND CONDITIONS Continuous — Output available without varying load for an unlimited time. Continuous power is in accordance with ISO8528, AS2789, and BS5514. Fuel stop power is in accordance with ISO03036. Natural gas ratings have been established on natural gas with net calorific Low Heat Value (LHV) of approximately 35.6 MJ/Nm3 (905 Btu/cu...