The latest Perkins or SisuDiesel Tier III engines with Electronic Engine Management (EEM) give the 7400 Series increased torque across the speed range and more torque backup, all the way down to 1000 rpm.
Both are wastegate turbo-charged with air-to-air charge cooling. These engines are some of the quietest you've ever experienced-up to 3 decibels quieter than Tier I engines.
The MF 7465, 7475, and 7480 models are powered by the Perkins 1106 Series 6-liter engines. In addition to the Fastram™ combustion system , these engines feature an improved ground timing gear for quieter operation and a new rear oil seal.
These are just a few of the features that have established Perkins as one of the world's leading engine manufacturers:
Uni-flow cylinder head ports precondition intake air entering the combustion chamber for the greatest efficiency
Water pump is driven by the engine timing gears, doing away with the need for separate belt drives
An integral oil cooler design extends service intervals while eliminating the need for special radiators and extra hoses or fittings
The MF 7485, 7490, and 7495 models are equipped with the new SisuDiesel 6.6 liter engine, offering up to 20% more torque.
Some of the features that have helped establish their record reliability include:
Separately inserted wet cylinder sleeves to assure easy coolant circulation
Dual cylinder heads for more room for pre-stressed head bolts to help prevent coolant or combustion leaks
Cooling ribs on the cylinder sleeve' to give circulating coolant more surface contact for better heat transfer and longer engine life.
