This OTTO Durable HPV0102 hydraulic pump regulator is professionally engineered as a precise replacement part for Hitachi EX200-5 excavators. Equipped with a high-precision sensor, it delivers real-time and accurate hydraulic pressure monitoring and flow regulation, effectively stabilizing the overall hydraulic system operation. It adopts premium industrial-grade materials and exquisite manufacturing technology, featuring excellent pressure resistance and structural stability to adapt to harsh construction working conditions.

This OTTO engine wiring harness with part number 20Y-0671620 / 20Y-06-71620 adopts professional heat-resistant insulating material customized for Komatsu PC210LC-7K excavators. It perfectly restores the original wiring layout, plug position and wire length of the original factory harness, realizing direct plug-and-play installation without cutting or modifying cables. High-temperature resistant outer sleeve effectively isolates engine heat radiation, avoiding wire melting, short circuit and signal failure under long-time high-load operation.

This OTTO heavy-duty O-ring seal with OEM part number 228-7096 is a universal sealing replacement spare designed for Caterpillar C4.4 and C6.6 diesel engines, perfectly suited for CAT M313D and M315D wheeled excavators. It is widely fitted on engine lubrication passages, cooling joints, fuel connectors and hydraulic valve ports, forming a complete sealed barrier to prevent oil, coolant and hydraulic fluid leakage under long-hour municipal road maintenance, urban construction and frequent mobile operation conditions.

This OTTO premium O-ring seal with OEM part number 238-5082 is a critical universal sealing spare designed for Caterpillar C9 diesel engines, perfectly matching CAT 330C, 330D and 336D medium-large crawler excavators. It is installed on engine fuel injectors, oil passages, cooling joints and hydraulic component ports, forming a tight closed barrier to stop leakage of high-pressure fuel, lubricating oil and coolant under continuous heavy-load quarrying, mining and large-scale earthmoving operations.

This OTTO high cooling efficiency radiator with part number 13G51000A is a standard replacement water tank specially designed for Doosan Solar 75-V excavators. All mounting brackets, water inlet and outlet positions and overall dimensions strictly follow OEM standards, realizing accurate installation and perfect matching with the original engine cooling system without any cutting or modification.

This OTTO rotary throttle position sensor with OEM part number 266-2337 is produced under strict OEM quality standards for CAT 320D, 324D and 329D excavators. Its mounting dimension, 3-pin sealed connector and signal output curve fully match original factory standards, enabling direct plug-and-play replacement without rewiring or calibration during engine electrical system repair.

This OTTO excavator fuse box with OEM part number 14683238 is a direct replacement electrical component exclusively made for Volvo EC210B and EC240B excavators. Its plug pin layout, mounting hole spacing and outer shell size fully match original OEM standards, supporting plug-and-play replacement without wire modification during cab electrical system maintenance.

This OTTO Operator Seat Assembly with OEM part number 20Y-57-41502 is manufactured strictly following OEM standard dimensions for perfect replacement on Komatsu PC200-8 and PC220-8 excavators. The base mounting holes, slide rail position and connecting structure are fully consistent with original specifications, enabling precise fit and hassle-free direct installation without modification during cab refurbishment.

This OTTO hydraulic gear pump with part number 7052230150 / 705-22-30150 is a professional pilot pump replacement designed for Komatsu PC75-3, PC75UU-3 and PC110R-1 excavators. Strictly manufactured according to OEM standard dimensions, it features identical shaft diameter, gear structure and mounting interface, ensuring precise assembly and perfect compatibility with the original hydraulic pilot system without any modification.

This OTTO water radiator with OEM part number 11Q6-40630 is a direct-fit engine cooling tank designed for Hyundai R210LC-9, R210-9 and R250LC-9 excavators. Manufactured strictly according to original installation standards, it features identical mounting holes, water pipe interfaces and overall size, supporting plug-and-play replacement without any modification and ensuring perfect compatibility with the original cooling system.

This OTTO tight-sealing cap cover with OEM part number 225-6461 is an essential maintenance component engineered for Caterpillar 3054C and 3054E diesel engines, compatible with CAT 312D2, 313D2, 315C and 318D2 small-medium excavators. It covers engine inspection ports, oil filling openings and auxiliary cavity openings, cooperating with built-in sealing gaskets to form a fully closed protective structure, blocking engine oil leakage, dust, muddy water and debris from entering internal assemblies during long-term municipal and earthmoving operations.

This OTTO premium rotary shaft oil seal with OEM part number 228-7092 is a core rotary sealing fitting customized for Caterpillar C7 and C9 diesel engines, applicable to CAT 320D, 324D, 325D and 329D medium crawler excavators. It is installed on rotating shafts of crankshaft, hydraulic pumps and engine auxiliary components, forming a dynamic isolation barrier to lock internal lubricating oil inside assemblies while blocking external dust, muddy water and impurities from invading bearing chambers under long-hour continuous digging and quarrying working conditions.