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With our unique hydraulic technology and control systems, we provide customers with the best productivity and optimum quality.
507-6560-OTTO
Caterpillar Excavator Hydraulic Motor CAT 320GC Final Drive 519-2478 507-6560 Travel Motor
This OTTO Caterpillar hydraulic travel motor with part numbers 519-2478 and 507-6560 is a premium final drive assembly specially engineered for CAT 320GC excavators. Adopting original CAT hydraulic matching standards, this travel motor features precise flow control and accurate torque output. It perfectly fits the hydraulic system parameters and mounting structure of CAT 320GC, ensuring responsive and stable traveling performance during normal excavation and transition operations.
31Q6-40030-OTTO
OTTO 31Q6-40030 Final Drive with Gearbox for Hyundai R210LC-7 R215-7 Excavator Travel Motor Ready to Ship
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.
PC200-OTTO
OTTO PC200-7 PC200-8 PC220-7 PC220-8 Travel Motor Assembly PC200 Excavator Final Drive for Komatsu Parts
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.
31Q6-10130-OTTO
OTTO 31Q610130 R210-7 R210-9 R215-7 Excavator Swing Motor 31Q6-10130 for Hyundai Hydraulic Swing Device
This OTTO excavator swing motor with part number 31Q6-10130 (31Q610130) is a professional hydraulic swing device exclusively designed for Hyundai R210-7, R210-9 and R215-7 excavators. Adopting precision hydraulic drive structure, this swing motor provides stable and accurate rotational power output. It strictly follows OEM dimensional and hydraulic parameter standards, ensuring highly matched assembly and sensitive slewing response for Hyundai medium excavator upper structure rotation.
CAT312-OTTO
OTTO 312 312B 312C 312D Excavator Hydraulic Travel Drive Motor Gearbox for CAT Excavator Parts Travel Device
This OTTO hydraulic travel drive motor gearbox is a professional travel device replacement part designed for CAT 312, 312B, 312C and 312D excavators. It adopts integrated hydraulic drive and reduction gear structure, precisely matching the original equipment installation dimensions and hydraulic parameters. The unit provides stable walking torque and sensitive hydraulic response, ensuring flexible and steady traveling, steering and climbing performance for CAT 312 series excavators in various construction scenarios.
D225-OTTO
OTTO High Quality Travel Motor SE210 SDLG LG922D DH225 Travel Reduction Gearbox R210 EC210 Excavator Final Drive
This OTTO high-quality SE210 travel motor assembly integrates a travel reduction gearbox and serves as a complete final drive unit for multiple excavator models including SDLG LG922D, DH225, R210 and EC210. Adopting precision gear transmission structure, this final drive delivers stable output torque and smooth traveling power, effectively avoiding stalling and jitter during excavator walking, climbing and heavy-load moving operations.
178-9090-OTTO
OTTO High Quality 320C 322C 325C Excavator Controller 178-9090 for Cat ECM Computer Board 1789090
This OTTO high-quality excavator controller with part number 178-9090 (1789090) is a professional ECM computer board designed for Caterpillar 320C, 322C and 325C excavators. Adopting industrial-grade core chips and original standard program calibration, this controller achieves precise engine data monitoring and power parameter adjustment. It matches the original CAT circuit and data protocol perfectly, ensuring synchronous and efficient operation of the excavator engine and hydraulic system.
PVD-1B-32P-11G5-OTTO
OTTO Durable Mini Excavator Piston Pump Wholesale PVD-1B-32P-11G5 Hydraulic Pump for Hitachi ZX38 Excavator Hydraulic System
This OTTO durable mini excavator piston pump with model number PVD-1B-32P-11G5 is a premium hydraulic pump customized for Hitachi ZX38 excavator hydraulic systems. Adopting advanced piston variable displacement structure, this hydraulic pump delivers stable oil output and precise pressure control during mini excavator operation. It maintains consistent hydraulic power output under frequent start-stop and variable load conditions, ensuring smooth and flexible overall machine action.
129A00-51000-OTTO
OTTO High Quality 3TNV88C-DYEM 4TNV88C 4TNV98CT Fuel Injection Pump 129A00-51000 for Yanmar Engine Common Rail Pump
This OTTO common rail fuel injection pump bears part number 129A00-51000, professionally matched to Yanmar 3TNV88C-DYEM, 4TNV88C and 4TNV98CT diesel engines. Its internal structure and installation dimensions comply strictly with OEM standards. The accurate assembly allows direct replacement without mechanical adjustment, perfectly matching original fuel pipeline interfaces of Yanmar engines.
2052953-OTTO
OTTO Genuine Quality 2052953 Wiring Harness for Hitachi ZX650-3 ZX670-3 Excavator Engine Control Wire
This OTTO wiring harness with part number 2052953 is specially developed as an engine control wire assembly for Hitachi ZX650-3 and ZX670-3 excavators. All wiring layouts strictly follow the original wiring route standards of Hitachi excavators. Each connector is precisely matched to the original plug position, enabling plug-and-play installation without wiring modification during overhaul.al changes during installation.
3788939-OTTO
OTTO High Quality ISL ISC QSL Engine Turbo Electronic Actuator 3788939 Turbo Actuator for Cummins Turbocharger Parts
This OTTO electronic turbo actuator with part number 3788939 is tailor-made replacement accessory for Cummins turbochargers. It perfectly matches Cummins ISL, ISC and QSL engines with precise size parameters consistent with OEM specifications. It realizes accurate electronic control of turbo opening angle, ensuring stable air intake adjustment during engine operation and requiring no structural changes during installation.
370-5513-OTTO
OTTO High Performance High Pressure Delivery Construction Parts Perkins C7.1 330D2 370-5513 Fuel Pipe
This OTTO high-performance high-pressure fuel pipe with OEM part number 370-5513 is a core fuel delivery component designed for Perkins C7.1 engines equipped on CAT 330D2 medium crawler excavators. Fitted between fuel injection pump and fuel injectors, it transports pressurized diesel fuel stably under strict pressure standards. It withstands long-term high fuel pressure, engine compartment high temperature and continuous mechanical vibration during all-day quarry excavation, municipal construction and heavy-load earthmoving operations, ensuring accurate fuel supply for complete combustion.
426-4986-OTTO
OTTO OEM Quality Flexible High Pressure Excavator Spares Caterpillar CAT C9 330D2 336D2 426-4986 Hydraulic Hose
This OTTO OEM-standard high-pressure hydraulic hose with OEM part number 426-4986 is a core fluid transmission spare exclusively developed for Caterpillar C9 engines fitted on CAT 330D2 and 336D2 large crawler excavators. Equipped with factory-matched metal end fittings, it transports high-pressure hydraulic oil between main pump, control valve bank and working cylinders. It withstands persistent peak system pressure, frequent bending layout and severe vibration during round-the-clock quarry mining, rock breaking and large-scale infrastructure earthmoving, maintaining stable hydraulic circulation without pipeline blockage or deformation.
216-5586-OTTO
OTTO Heavy Duty Anti Friction Engine Components Caterpillar CAT 3116 C7 C9 322C 324D 325D 216-5586 Sleeve Bearing
This OTTO heavy-duty anti-friction sleeve bearing with OEM part number 216-5586 is a vital load-bearing rotating component designed for Caterpillar 3116, C7 and C9 diesel engines, matching CAT 322C, 324D and 325D medium crawler excavators. Press-fitted into rocker arm bores and auxiliary rotating assemblies, it bears continuous radial pressure and high-frequency reciprocating friction during long-shift earthmoving, quarry work and sustained machine vibration. It maintains precise assembly clearance to stabilize the operation of valve train moving parts and avoid abnormal mechanical jitter under heavy load.
203-5805-OTTO
OTTO Premium Anti Friction Rotating Excavator Parts Caterpillar CAT C9 C9.3 330C 330D 336D 340D 203-5805 Sleeve Bearing
This OTTO premium anti-friction sleeve bearing with OEM part number 203-5805 is a core rotating assembly component engineered for Caterpillar C9 and C9.3 heavy-duty diesel engines, perfectly compatible with CAT 330C, 330D, 336D and 340D medium-large mining excavators. Press-installed on shafts, rocker arms and auxiliary rotating structures, it bears continuous radial load and high-speed reciprocating friction during long-hour rock excavation, heavy loading and high-vibration construction work. It maintains stable rotating clearance to reduce component abrasion and guarantee smooth mechanical operation of engine moving parts.
209-7290-OTTO
OTTO Durable High Temp Sealing Equipment Spares Caterpillar CAT C9 C9.3 330C 330D 336D 340D 209-7290 Gasket
This OTTO long-lasting high-temperature sealing gasket with OEM part number 209-7290 is a universal overhaul sealing spare developed for Caterpillar C9 and C9.3 heavy-duty diesel engines, matching CAT 330C, 330D, 336D and 340D medium-large crawler excavators. Installed on exhaust manifolds, turbocharger flanges and EGR component mating surfaces, it creates a fully airtight barrier to block high-temperature exhaust gas, coolant and lubricating oil leakage during round-the-clock mining, rock breaking and large-scale earthmoving with frequent hot-cold thermal cycling.
4635922-OTTO
OTTO ZX27U-2 ZX30U-2 Excavator Engine 3TNV88-SHB 3TNV88 Diesel Engine Assembly 4635922 for Hitachi Mini Excavator Repairing
This OTTO full diesel engine assembly with OEM number 4635922 adopts Yanmar original 3TNV88-SHB three-cylinder water-cooled power structure, specially made as replacement repair parts for Hitachi ZX27U-2 and ZX30U-2 compact mini excavators. The whole unit comes pre-assembled with cylinder block, cylinder head, fuel injection system, cooling pump, lubrication components and flywheel, offering one-stop power replacement to restore full machine performance for landscaping, indoor demolition and narrow-site municipal work.
4JG1-OTTO
OTTO Japan Brand New Excavator Engine Repairing 4JG1 Diesel Engine Assembly for Isuzu Complete Engine Replacement
This OTTO Japan-grade brand new 4JG1 full diesel engine assembly is a complete engine replacement unit tailored for Isuzu mini excavator overhaul projects. It adopts original Isuzu inline four-cylinder four-stroke water-cooled structure, equipped with full matching accessories including cylinder block, cylinder head, fuel injection pump, turbocharger, water pump, oil pump and flywheel assembly. It delivers stable, low-vibration power output for 6–8 ton small excavators, perfectly replacing worn-out original engines to restore full machine working performance at construction, landscaping and municipal sites.
C7.1-OTTO
OTTO Industrial High Quality Machinery Assembly C7.1 Diesel Engine Assembly for Excavator Drilling Rig Complete Engine
OTTO Industrial High Quality Machinery Assembly C7.1 Diesel Engine Assembly for Excavator Drilling Rig Complete Engine This used for EXCAVATOR,Original new and china could offer and With 3-12 months warranty
C9-OTTO
OTTO Industrial High Quality Machinery Engines C9 Engine Assembly for Caterpillar CAT Diesel Engine C9
OTTO Industrial High Quality Machinery Engines C9 Engine Assembly for Caterpillar CAT Diesel Engine C9 This used for EXCAVATOR,Original new and china could offer and With 3-12 months warranty
C13-OTTO
OTTO 345D 349D 349D2 Excavator Engine Assembly C13 Complete Diesel Engine Assy for Caterpillar CAT Engine Assembly C13
OTTO 345D 349D 349D2 Excavator Engine Assembly C13 Complete Diesel Engine Assy for Caterpillar CAT Engine Assembly C13 This used for EXCAVATOR,Original new and china could offer and With 3-12 months warranty
C9-OTTO
OTTO Complete Engine Assembly C9 Diesel Engine for Caterpillar CAT 336D2 Machinery Engines
OTTO Complete Engine Assembly C9 Diesel Engine for Caterpillar CAT 336D2 Machinery Engines This used for EXCAVATOR,Original new and china could offer and With 3-12 months warranty
6WG1
OTTO 6WG1 Excavator Isuzu Diesel Motor Assembly 6WG1T Engine for Sale
OTTO 6WG1 Excavator Diesel Motor Assembly 6WG1T Engine for Sale  This used for EXCAVATOR,Original new and china could offer and With 3-12 months warranty
6BG1-313413-FDJZC
OTTO 6 Cylinders Diesel Isuzu 6BG1 6BG1T Engine for Sale Excavator
OTTO 6 Cylinders Diesel Isuzu 6BG1 6BG1T Engine for Sale Excavator This used for EXCAVATOR,Original new and china could offer and With 3-12 months warranty
2001
company established
ABOUT OTTO
OTTO EXCAVATOR PARTS CO., LIMITED
OTTO EXCAVATOR PARTS CO.,LIMITED is a leading manufacturer and distributor of earthmoving parts for Hitachi Komatsu Caterpillar Isuzu Cummins in Guangzhou China. It consistes of 3 branches , isuzu authorized dealer,  Korea TongMyung Hydraulic Dealer, And Office in HongKong. And OTTO have distributors in the worlds, Such as Russia, Canada, Mexico, Brazil, Colombia, Ecuador, Turkey, Philippines, Ghana, South Africa, New Zealand, Australia, South Korea..etc.  OTTO also selling parts to chinese market, 90% supply to Guangzhou market trading company. OTTO service many well know brand dealer Isuzu ,Hitachi, JCB, Sumitomo, Komatsu, Sany in China and abroad. With many years experience in production and distribution, the OTTO has cultivated a team of highly skilled sales engineers and professional sales team who are able to ensure the highest quality, competitive prices and timely delivery. OTTO also actively participates in every exhibition, and will visit customers' companies, in-depth understanding of customer needs, personalized customized services. This is a part of the warehouse. If you need accessories, you can send an email or call to help you get more orders locally.
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24H service online+86-15302269990

  • vision
    vision
    To be NO. 1 on excavator parts
  • sense of worth
    sense of worth
    O-Open/T-Target/T-Team/ T-Team
  • 210+

    Has 1,135 professional and technical employees

  • 1210+

    The products are exported to Asia, South America and other countries and regions.

  • 71428570+

    Total Annual Sales Volume(dollars)

  • 10000+

    Our factory covers an area of more than 1000 square meters

Latest News
With our unique hydraulic technology and control systems, we provide customers with the best productivity and optimum quality.
Isuzu 6WG1 Renewed Engine — Bring Your Hitachi ZX450/470 Back to Life
August 03. 2026 Isuzu 6WG1 Renewed Engine — Bring Your Hitachi ZX450/470 Back to Life
Isuzu 6WG1 Renewed Engine — Bring Your Hitachi ZX450/470 Back to Life OTTO-PARTS.COM offers expertly renewed Isuzu 6WG1 engine assemblies — the cost-effective alternative to a new engine for your Hitachi ZX450 & ZX470-5G excavators. Our 6-Step Renewal Process Genuine Isuzu Parts — only OEM components used for every rebuild Block Flatness Precision Inspection — dial-indicator verified to factory specs Strict Standards Adherence — every tolerance checked against OEM engineering data Crankshaft STD Dimension Verification — micrometer-measured to ensure spec compliance Comprehensive Quality Measurement — multi-point inspection across all critical surfaces Fully Renewed Assembly — complete engine delivered ready to install, with turbo, manifolds, and cooling fan Why Choose Renewed? Significant cost savings vs. brand-new OEM engine Premium quality — rebuilt to OEM standards, not just patched up Rigorously tested for peak performance before shipment Maximum reliability for heavy-duty applications
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Hino J08E-TM Engine — The Perfect Match for Your Kobelco SK350-8
August 03. 2026 Hino J08E-TM Engine — The Perfect Match for Your Kobelco SK350-8
Hino J08E-TM Engine — The Perfect Match for Your Kobelco SK350-8   OTTO-PARTS.COM introduces the J08E-TM diesel engine — a precision-engineered power unit delivering OEM-grade performance for the Kobelco SK350-8 excavator series. Key Highlights 197kW / 271HP @ 2100RPM — powerful output tailored for heavy digging and lifting Turbocharged & Intercooled for enhanced combustion efficiency and cooler operation Direct Injection fuel system ensuring superior fuel economy and lower emissions High Torque, Low-End Grunt — optimized torque curve for demanding excavation cycles Perfect OEM Fit for Kobelco SK350-8, with verified flywheel housing dimensions included Precision You Can Measure We provide full mounting dimensions for hassle-free installation: Center-to-mounting edge: 12.15 cm Inner bolt circle diameter: 46.75 cm Outer housing diameter: 49.99 cm Central hub: 12 mounting holes Manufactured by Hino Motors, Ltd., this J08E-TM engine combines Japanese engineering precision with field-proven durability.
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Cummins NTA855-C280 Engine — Legendary Power, Built to Outlast
August 03. 2026 Cummins NTA855-C280 Engine — Legendary Power, Built to Outlast
Cummins NTA855-C280 Engine — Legendary Power, Built to Outlast OTTO-PARTS.COM proudly presents the Cummins NTA855-C280 industrial diesel engine — a proven workhorse engineered for the toughest jobsites on earth. Key Highlights 280HP @ 2100RPM with massive 14.0L displacement — relentless power for heavy-duty performance Turbocharged & Aftercooled for superior thermal efficiency and lower fuel consumption under sustained loads Cummins PT™ Self-Adjusting Fuel System — iconic precision injection that eliminates manual tune-ups and maximizes uptime In-Line 6-Cylinder architecture delivering legendary smoothness and durability Manufactured by Chongqing Cummins Engine Co., Ltd. (2022 production), rated for altitudes up to 3,600 m Built for Multiple Fronts From construction excavators and mining dump trucks to marine propulsion, power generation, and oil & gas rigs — the NTA855-C280 adapts seamlessly across industries.
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OTTO Mitsubishi D04FR/D06FR Fuel Injector
June 30. 2026 OTTO Mitsubishi D04FR/D06FR Fuel Injector
OTTO Mitsubishi D04FR/D06FR Fuel Injector Part No.:32G61-00020 / 32R61-10010 Bosch-level quality with Mitsubishi packing Large stock, quick delivery for bulk orders Perfect match for Mitsubishi diesel engines  Durable, cost-effective injector replacement parts.
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Dragon Boat Festival arrangement 2026
June 06. 2026 Dragon Boat Festival arrangement 2026
Dear Friend, It is here by notified that the coming Dragon Boat Festival arrangement: 19th June 2026 to 21th June 2026. Sorry for any inconveniences caused. Wish you and your family happiness and health!
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OTTO HYDRAULIC PARTS — ABUNDANT STOCK, READY TO SHIP!
May 21. 2026 OTTO HYDRAULIC PARTS — ABUNDANT STOCK, READY TO SHIP!
OTTO HYDRAULIC PARTS — ABUNDANT STOCK, READY TO SHIP! We keep a full range of hydraulic pump parts, including pistons, valve plates, cylinder blocks, and seals. ✅ OEM quality ✅ Fast worldwide shipping ✅ Ready stock for major excavator brands Your equipment never has to wait.
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OTTO Komatsu SAA6D125E-5 Engine Assembly for PC450-8 Excavators
May 08. 2026 OTTO Komatsu SAA6D125E-5 Engine Assembly for PC450-8 Excavators
OTTO Komatsu SAA6D125E-5 Engine Assembly for PC450-8 Excavators OTTO Parts introduces its factory-grade Komatsu SAA6D125E-5 engine assembly, purpose-built for the PC450-8 excavator. Delivering OEM-level quality, this 263 kW power unit offers drop-in fit, high performance, and proven durability for heavy-duty construction and mining operations. ✅ Original Quality & Perfect Fit ✅ High Power & Fuel Efficiency ✅ Reliable & Long-Lasting Performance ✅ Ready-to-Use, Complete Assembly In stock now with global shipping and dedicated after-sales support. Learn more at otto-parts.com
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Hitachi Hydraulic Solutions: Pumps, Travel & Swing Motors
April 30. 2026 Hitachi Hydraulic Solutions: Pumps, Travel & Swing Motors
Hitachi Hydraulic Solutions: Pumps, Travel & Swing Motors Immediate Stock: Forget the 4-8 week wait from official dealers. We ship in 24 hours KPM Original Price: 30%-40% lower than your local dealer's price. Warranty: We provide a full technical guarantee for mining-grade performance. EXW HONGKONG
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No More Downtime – Yanmar Engines In Stock & Ready
April 30. 2026 No More Downtime – Yanmar Engines In Stock & Ready
No More Downtime – Yanmar Engines In Stock & Ready OTTO delivers 100% genuine, brand-new Yanmar engines – factory quality, massive stock, fast delivery, guaranteed. Your excavator is down, and you need a replacement fast? We keep genuine Yanmar engines in stock, so you don’t lose days waiting for parts. Fast dispatch, reliable delivery – get your machine back to work in no time. 100% original quality, factory-tested, guaranteed to perform like new.
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GENUINE ISUZU 4HK1 ENGINE | READY FOR YOUR EXCAVATOR
April 30. 2026 GENUINE ISUZU 4HK1 ENGINE | READY FOR YOUR EXCAVATOR
GENUINE ISUZU 4HK1 ENGINE | READY FOR YOUR EXCAVATOR ✅ 100% Genuine Isuzu 4HK1 Engine Original Isuzu craftsmanship & quality, factory-tested for excavator use ✅ Reliable & Durable Performance Built to withstand harsh construction conditions, engineered for long service life ✅ Fuel Efficient & High Productivity Lower fuel consumption with consistent power output, boosting your work efficiency ✅ Easy Maintenance & Proven Design Service-friendly structure with widely available genuine parts ✅ Ready-to-Ship & Fast Delivery In-stock units for quick dispatch, backed by OTTO’s 20 years of industry experience
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