Komatsu PC78 Excavators for Sale

Komatsu PC78 · Excavators

Komatsu PC78

Tier 4 Final compact excavator with tight tail swing, ideal for urban construction and utility applications requiring maneuverability with strong digging performance.

Key specifications

Engine (PC78US-11): Komatsu SAA3D95E-1 (3-cyl, turbocharged, aftercooled, cooled EGR)
Net Power (PC78US-11): 50.6 kW / 67.9 HP @ 1,850 rpm
Operating Weight (PC78US-11): 7,910 - 8,250 kg (17,438 - 18,188 lbs)
Bucket Capacity (PC78US-11): 0.09 - 0.20 m³ (0.12 - 0.26 yd³)
Max Digging Depth (PC78US-11): 4,660 mm (15'3")
Max Digging Reach (PC78US-11): 6,920 mm (22'8")

Model overview

The Komatsu PC78 series encompasses compact excavators in the 8-tonne class designed for confined space operation. The PC78US-11, the latest North American variant, features EPA Tier 4 Final compliance with innovative KDOC emissions technology that eliminates the need for DPF or DEF fluid. Its short tail swing design (4'7" radius) enables work in tight areas while delivering 68 HP and six selectable working modes for optimal performance.

At a glance

Weight Class7.9 - 8.3 tonnes

Design TypeShort/tight tail swing

Hydraulic SystemHydrauMind CLSS with load sensing

Working Modes6 modes (P, E, L, B, ATT/P, ATT/E)

13555 machines · €250 - €1,700,000 · 1970 to 2026 · China, Germany, Netherlands

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Specifications sourced from komatsu.com (official manufacturer page).