About · Caterpillar 308Overview
The Caterpillar 308 is an 8-tonne class mini-excavator producing 70 hp and fitted with a 0.21 m3 bucket. It occupies the upper end of the compact excavator segment, bridging the gap between conventional mini-excavators and full-size short-radius machines. With an operating weight of 8,146 kg, the 308 offers a balance of lifting capacity, reach, and transportability that positions it as a versatile choice across a range of medium-duty earthmoving applications.
Typical applicationsWhere this machine is used
Machines in this weight and power class are well suited to urban civil works, utility trenching, residential foundation excavation, and landscaping projects where site access is restricted but production demands exceed what lighter compact excavators can deliver. The 8-tonne class is also commonly deployed in road maintenance, drainage installation, and pipeline work where the combination of bucket capacity and machine stability is a practical requirement. Attachment compatibility, typically including hydraulic hammers, augers, and tilt-rotators, extends the working range of machines in this category across a full year of varied site conditions.
Used-market inspectionWhat to check before buying
Inspection of an 8-tonne class excavator should prioritise undercarriage wear, as track components including shoes, rollers, and sprockets represent a significant portion of ongoing ownership cost in this machine class. Buyers should verify hydraulic cylinder condition, checking for seal weeping and rod scoring on the boom, arm, and bucket rams. Swing bearing play and slew ring condition warrant close attention, particularly on high-hours machines used in production environments. Engine coolant and hydraulic oil samples provide useful data on internal component condition and should be requested where available. Cab condition, including HVAC function, monitor display operation, and seat integrity, reflects overall machine care. Where attachments are included, buyers should confirm compatibility of hydraulic flow and pressure settings with the host machine, and request documentation of any auxiliary line installations or modifications carried out during the machine's working life.
Current marketPrice position
The Caterpillar 308 is cross-shopped most directly against the Komatsu PC88 and the Yanmar VIO80. The Komatsu PC88 is a comparable 8-tonne class machine and competes on brand recognition, dealer network, and parts availability in many markets. The Yanmar VIO80 is a zero-tail-swing design in a similar weight range, making it a preferred alternative on confined sites where swing clearance is a primary constraint. The Caterpillar 308, at 8,146 kg operating weight and 70 hp, sits in a comparable position to both competitors on paper, meaning that brand support infrastructure, machine configuration, and regional parts supply are key differentiators for buyers. Within any price band for this class, the primary attributes that move a unit are accumulated service hours, maintenance history, cab specification, undercarriage condition, and whether the machine is offered with a quick-coupler and a complement of working attachments. Machines configured with verified service records, low undercarriage wear, and auxiliary hydraulic lines ready for attachments consistently attract stronger interest from professional buyers.