HKX Inc. is the industry leader in aftermarket auxiliary hydraulic kits for heavy off-road equipment, including excavators (5–150 metric tons) and wheel loaders. With decades of hands-on experience, HKX builds proven kits that boost machine versatility and expand jobsite capabilities. Our engineered, field-installable kits integrate with OEM hydraulic and electronic systems and support a wide range of attachments—hydraulic thumbs, hammers, shears, crushers, compactors, pile drivers, drills, and more—for use in demolition, forestry, utility work, site prep, and material handling. Designed for fast installation and reliable performance, choose HKX kits.