Premium OEM-grade excavator preheating water tank, meticulously crafted for PC200-6 models with precision-engineered aluminum alloy housing for optimal heat conduction. Features industrial-grade corrosion-resistant coating ensuring durability in extreme temperatures (-30°C to 120°C). Direct replacement part (20Y-977-2120) with seamless compatibility for Komatsu 205-977-7110 systems. Laser-welded joints and CNC-machined fittings prevent coolant leaks during cold starts. Ideal for mining operations, construction sites, and heavy equipment maintenance in subzero climates. Includes integrated thermostat pocket for accurate temperature monitoring. Ships from global warehouses with bulk order discounts available.