This OTTO C9.3 cylinder head gasket kit with part number 480-0204 is a complete engine overhaul repair kit tailored for CAT 336E and 336F excavators. It covers all essential sealing gaskets required for cylinder head disassembly and assembly, providing comprehensive sealing protection for C9.3 engine combustion chambers, oil circuits and water circuits to ensure standardized engine overhaul procedures.

This OTTO fuel injection pump solenoid valve, part number 375‑8254 / 3758254, is a precision fuel control component for Caterpillar C4.4 and C7.1 engines. It provides fast and accurate fuel‑flow switching, maintaining stable fuel pressure during long‑time excavation work and effectively avoiding unstable engine speed or power drop caused by fuel supply failure.

This OTTO excavator water radiator with part number 11Q6-46631 is a dedicated engine cooling component for Hyundai R220LC-9S and R220-9S excavators. Adopting optimized heat dissipation structure, it can quickly and evenly take away engine heat during long-time heavy-duty operation, effectively stabilize the engine working temperature and prevent overheating shutdown and power attenuation.

This OTTO monitor display panel, part number 300426‑00049A / 30042600049A / 300426‑00202, serves as a core control display unit for Doosan Daewoo excavators. It delivers clear, stable real‑time machine data readout with high‑precision signal transmission, effectively reducing display failure and signal lag during long‑hour heavy‑duty construction work.

This OTTO engine overhaul gasket kit with part number 511-5543 / 5115543 is a complete sealing repair set designed for CAT C15 and C18 diesel engines. It includes cylinder head gaskets and matched oil seals to fully restore engine sealing performance, effectively solving common faults such as oil leakage, air leakage and unstable cylinder pressure on CAT 349D excavators during long-term heavy-duty operation.

This OTTO water tank radiator with part number 508-6290 / 5086290 is a high-quality aftermarket cooling part designed for Caterpillar excavators equipped with C4.4 and C7.1 engines. It provides efficient and stable heat dissipation circulation, effectively lowering engine operating temperature and solving common problems such as engine overheating, high water temperature and power loss during long-hour heavy-load operation of CAT 320GC, 320 and 323 excavators.

This OTTO swing internal ring gear with part number XKAQ-00998 is a core reduction gearbox part exclusively designed for Hyundai R330-9S excavators. Serving as a key meshing component of the swing reduction system, it precisely matches the gear train structure to stabilize rotary power transmission, effectively solving common faults such as excavator swing jitter, slow rotation and abnormal gear noise caused by worn or deformed original ring gears.

This OTTO C9 engine wiring harness, part number 283‑2762, is an OEM‑grade injector cable specially made for CAT excavators. It delivers stable signal transmission between the engine injector and ECU, effectively avoiding common failures such as poor ignition, unstable engine speed and circuit breakdown caused by ageing or damaged original wiring.

This OTTO swing carrier assembly with part number XKAQ-00467 / XKAQ00467 is an OEM-grade core accessory for Hyundai excavator swing reduction systems. Integrated with a precision sun gear, this component undertakes the key power transmission task of the swing mechanism, ensuring stable and uniform rotary power output during excavator operation. It effectively solves common problems such as jitter, slow rotation and abnormal noise caused by worn swing carrier parts.

This OTTO excavator controller with part number 21N632101 / 21N6-32101 is a professional ECU computer board tailored for Hyundai excavators. It adopts high-precision integrated circuit chips to achieve real-time monitoring and intelligent control of the engine and hydraulic system, effectively stabilizing the overall operating state of the equipment and avoiding common faults such as unstable speed and weak working power caused by control system failures.

This OTTO final drive with gearbox, marked with part number 31Q6-40030, is a complete travel motor assembly tailored for Hyundai R210LC-7 and R215-7 excavators. As a ready-to-ship replacement part, it adopts standard OEM structural design with precise mounting dimensions and matched hydraulic parameters. The integrated gearbox and motor unit delivers stable hydraulic power conversion, ensuring consistent and reliable traveling performance for Hyundai medium excavators in daily construction operations.

This OTTO PC200 excavator final drive travel motor assembly is a high-precision walking drive component specially designed for Komatsu PC200-7, PC200-8, PC220-7 and PC220-8 excavator models. Made strictly in accordance with Komatsu OEM standard specifications, this travel motor assembly features accurate mounting dimensions and matched hydraulic parameters. It provides stable and powerful walking torque output, ensuring flexible and smooth traveling, steering and climbing operations for Komatsu medium-sized excavators under various working conditions.