640 - SKIDDER, LOG HYDRAULIC SYSTEM 0360 Parts group HYDRAULIC SYSTEM 0360 HYDRAULIC SYSTEM 0360 . TRANSMISSION OIL PUMP [01D20] TRANSMISSION CONTROL VALVE [01D21] TRANSMISSION CONTROL VALVE COVER, VALVES AND ARMS [01D23] TRANSMISSION SHIFT VALVE [01D24] TRANSMISSION OIL PRESSURE REGULATING VALVE [01E01] TRANSMISSION OIL FILTER [01E03] TRANSMISSION CLUTCH VALVE [01E04] REPLACEMENT CLUTCH VALVE HOUSING [01E05]