Multiquip EE58282 Radiator/CAC for Cummins QSB7-G9 Tier 4F Engine - OEM Replacement Part

This combined radiator and charge air cooler (CAC) assembly is engineered specifically for Cummins QSB7-G9 Tier 4 Final engines, maintaining optimal operating temperatures for both the engine coolant system and turbocharged intake air. The integrated design handles the demanding thermal load of the 282 HP, 6-cylinder turbocharged engine operating at 1800 RPM, with coolant capacity of 12 gallons (45 liters). The charge air cooling component is critical for Tier 4F emissions compliance, reducing intake air temperature to maximize combustion efficiency and meet strict emission standards while maintaining the generator's rated 200+ kVA output.

In the SG1400C4F studio generator design, intake air passes through the roof-mounted ventilation door and across this radiator assembly to cool the engine. The radiator works in conjunction with the hydraulically-actuated intake system to maintain proper engine temperature under full load conditions, where fuel consumption reaches 13.5 gallons per hour. Failure symptoms include engine overheating, reduced power output, high exhaust temperatures, or DEF system faults related to inadequate charge air cooling.

Compatible with the following Multiquip generator models:

• SG1400C4F

Genuine Multiquip OEM part, sold by an authorized dealer.