Hitachi 4289516 Cab Door Glass Assembly

This cab door glass is engineered as a direct replacement for Hitachi part number 4289516. It is constructed from laminated safety glass meeting industrial impact standards for construction machinery operator protection. The glass features a 5 mm nominal thickness and 570 mm width profile designed for the left-hand front slider window assembly. It serves as a critical visibility and structural component for the operator cab enclosure. Primary application covers Hitachi EX-2 and EX-3 series hydraulic excavators ranging from 6-ton to 40-ton operating weight classes. Cross-reference interchangeability includes John Deere part numbers AT154426 and AT154426-A for equivalent 190E through 992E LC series excavators. Installation utilizes existing OEM mounting channels and rubber glazing seals. No modification required for direct fitment.