KDI 3404 joins Kohler’s KDI family of engines

2278 Kohler Engines has added the KDI 3404 to its growing range of Stage IV/Tier 4 Final compliant diesel engines. The KDI 3404 has a 3.4-litre capacity, joining the existing 1.9-litre and 2.5-litre models and taking Kohler up to 100kW output for the first time. The motor is available with ratings of 55.4kW, 75kW, 90kW and 100kW and maximum torque is 500Nm, with 412Nm available from just 1,000rpm.

As with the smaller models, the KDI 3404 uses high-pressure common rail fuel injection, four valves per cylinder and solenoid injectors. It also has exhaust gas recirculation (EGR) as part of an emissions package that includes a Diesel Oxidation Catalyst (DOC) and Selective Catalytic Reduction (SCR) in a single exhaust unit, yet does without a Diesel Particulate Filter (DPF).

Kohler CEO Vicenzo Perrone says the engine is also ready for the move to Stage V in 2019, with the addition of a compact DPF within the same one-box exhaust system. The existing all-in-one module can simply be replaced with the new exhaust box, making it easy for equipment manufacturers to make the change to the new emissions regulation.