SHARE

Kohler KDI 3404 Tier 4-Final Diesel Engine

February 5, 2015
Kohler KDI 3404 Tier 4-Final Diesel Engine

Kohler has expanded its Direct Injection (KDI) engine line with the introduction of the 3.4L KDI 3404, designed for heavy-duty commercial applications requiring enhanced power and torque.

The engine is a Tier 4-Final emission-compliant unit that does not use a DPF. The company’s KDI line, which now includes eight engines, achieves Tier 4-Final emission compliance without a DPF due to a number of design features, including a direct injection system, cooled EGR, and a DOC. A high-pressure common rail system is also integrated, which utilizes pressures at 29,000 psi to deliver better atomization of fuel, improved fuel consumption and a reduction in emission particulates, Kohler says.

The KDI 3404 is available in four ratings, ranging from 74 to 134 horsepower, with peak torques from 276 to 369 lb.-ft. To enhance power and torque, the engine’s mapping program within the Electronic Control Unit monitors and manages power output in varying conditions by injecting fuel multiple times into the combustion cycle.

expand_less