The ZX300LC-6 excavator has an Isuzu 6HK1 engine that uses CEGR, DOC and SRC to achieve Tier 4-Final standards.
The 14.5-horsepower 17G and 20-horsepower 26G excavators are Tier 4-Final without a DOC or DPF.
The ZX250LC-6, ZX350LC-6 and ZX380LC-6 excavators have been upgraded with Isuzu Tier 4-Final engines
With net power of 257 horsepower, the PC390LC-11 has a certified Tier 4-Final Komatsu SAA6D114E-6 engine.
The DX255LC-5 excavator complies with Tier 4-Final standards with 184-horsepower engine that uses CEGR, DOC and SCR with DEF.