In excavator design, this usually refers to the hose that connects the main distributor to the boom start or cylinder responsible for the initial boom lift/movement closer to the operator.
Features:

Bronco ATV Components has been committed to providing the utility ATV & UTV riders of the world with quality products since 2003. Designed by riders for riders, everything we manufacture is engineered with two things in mind: dependability and quality. That’s Bronco. From our vast line of suspension components to add-on accessories, Bronco has you covered. Whether it’s for work or play, we know you depend on your machine. Plus, all Bronco products are manufactured to meet or exceed OEM standards.
Bronco Hydraulic hose Bucket Front 77-13000 2022->
/ pcs.