Install injectors, pistons, liners, cam shafts, cylinder heads, rod and main bearings, oil pans, clutches, fan hubs, differentials, fifth wheels, brakes, change or recharge batteries, and replace transmissions and other parts. Service Technician Take your career to the Summit… At Summit Idealease, one of the country’s leading heavy duty truck dealer groups, our success depends on serving our customers with the best team members in the industry.