KMP 6136-21-8010 6138-31-3040 Main & Connecting Rod Bearing Set

This main and connecting rod bearing set is designed for Komatsu SA6D110 series diesel engines, including SA6D110-1, S6D110, and 6D110 variants. The set includes a complete main bearing set (7 pieces) and connecting rod bearing set (6 pieces) manufactured to OEM specifications using high-strength aluminum alloy tri-metal construction. Precision machining ensures proper oil clearance and load distribution for reliable crankshaft operation under heavy-duty cycles. The bearings are compatible with standard (STD) journal sizes and available in undersize options (0.25mm, 0.50mm, 0.75mm, 1.00mm) for reground crankshafts. Thrust washers are included for axial crankshaft location. Application coverage extends to Komatsu hydraulic excavators (PC280-3), wheel loaders (WA350-1, WA380-1, WA400-1), and industrial generator sets (EC210Z-1, EG150-3). Confirm fitment by engine serial number and original part number before installation.