OTTO Turbocharger 6745-81-8040 (6745818040) is a high-performance turbo assembly for Isuzu excavator diesel engines. It boosts intake air volume to improve combustion efficiency, lifting engine power and torque for heavy-duty excavation and mining operations.

OTTO Crankshaft Bearing Kit 1-11510074-3 (1115100743) is a core engine wearable set designed for Isuzu 6BG1 engine equipped on ZX200 excavator. It serves as the main rotating friction pair for crankshaft operation, reducing metal friction and ensuring smooth and stable crankshaft rotation during long-time construction work.

OTTO Turbocharger Control Unit 8-98133124-1 (8981331241) is an electronic controller for Isuzu excavator turbocharger. It dynamically adjusts boost pressure according to engine load, optimizes air intake and maintains stable engine power output during heavy-duty operation.

OTTO Thermostat 1-13770089-1 (1137700891) is a core temperature control component designed for Isuzu 6WG1 and 6UZ1 engines equipped on ZX450 excavator. It precisely controls the circulation of engine cooling water, realizing rapid cold start warm-up and avoiding excessive temperature fluctuation during heavy load operation.

OTTO Supply Pump Overhaul Kit 8-98043687-0 (8980436870) is a full set of maintenance accessories tailored for Isuzu 4HK1 engine fuel supply pump of Hitachi ZX200-3 excavator. It contains complete sealing and wearing parts to repair worn fuel supply pumps, restore standard fuel delivery pressure and ensure consistent engine fuel feeding performance.

OTTO Fuel Leak-Off Pipe 8-97362840-2 (8973628402) is a fuel return line for Isuzu 4HK1 engine on Hitachi ZX200-3 excavator. It guides excess leaked fuel back to the fuel tank, stabilizes fuel rail pressure and prevents fuel overflow inside the engine compartment.

OTTO Oil Cooler Thermo Valve 1-21770004-0 (1217700040) is a key temperature control component for Isuzu 6WG1 engine installed on Hitachi ZX450-3 excavator. It automatically controls the opening and closing of the oil cooler circuit according to oil temperature, realizing fast engine warm-up and stable lubricating oil temperature balance during equipment operation.

OTTO Injection Pump Gear 8-97601698-1 (8976016981) is a power transmission component for Isuzu 4HK1 engine on Hitachi ZX200-3 excavator. It transfers rotational power to drive the fuel injection pump, synchronizing injection timing to ensure stable engine fuel supply and normal power output.

OTTO Injection Pump Bracket 8-97601699-0 (8976016990) is a sturdy mounting support for Isuzu 4HK1 engine fuel injection pump on excavators. It firmly holds the injection pump in place, absorbing vibration during engine operation and keeping accurate pump positioning to guarantee stable fuel delivery.

OTTO Cylinder Block Water Pipe 8-97363866-0 (8973638660) is a dedicated cooling system component for Isuzu 4HK1 engine equipped on Hitachi ZX200-3 excavator. It undertakes the circulation of engine cooling water, ensuring continuous and stable heat dissipation of the cylinder block to avoid engine overheating during long-hour heavy-duty operation.

OTTO Fuel Filter Cartridge 1-13240044-1 (1132400441) is a filtration component for Isuzu engines fitted on Hitachi excavators. It effectively traps impurities, water and particles in fuel, protecting fuel injectors and high-pressure pump from abrasive damage during engine operation.

OTTO Engine Speed Sensor 8-98019024-0 (8980190240) is a core electronic component for Isuzu 4HK1 and 6HK1 engines. It accurately captures engine rotational speed signals and transmits real-time data to ECU to support fuel injection control and stable engine operation.