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With our unique hydraulic technology and control systems, we provide customers with the best productivity and optimum quality.
396-6895-OTTO
OTTO 396-6895 3966895 Air Conditioner Control Panel for CAT 313D 320D2 E320D2 Excavator Spare Parts
Maximize your CAT excavator’s operator comfort with the OTTO Air Conditioner Control Panel (P/N: 396-6895 / 3966895), a premium aftermarket replacement designed for durability and precise fitment. This high-quality component restores reliable AC system control to your heavy equipment, offering a cost-effective alternative to OEM parts while ensuring optimal cabin temperature regulation.
158-8250-OTTO
OTTO High Quality Final Drive Foot Pedal Valve 158-8250 1588250 for CAT 312C 315C 318C 319C 320C 325C 325D 330C Excavator Parts
Maximize your CAT excavator’s operational precision with the OTTO High Quality Final Drive Foot Pedal Valve (P/N: 158-8250 / 1588250), a premium aftermarket replacement designed for durability and precise fitment. This high-quality component restores reliable hydraulic control to your heavy equipment, offering a cost-effective alternative to OEM parts while ensuring smooth foot-operated functionality.
2413J372-OTTO
OTTO SK200-3 2401P1275 YN32W01024P1 2401P1273 2413J372 Travel 2nd Carrier Assy with Sun Gear for Kobelco Excavator Parts
Maximize your excavator's travel performance with the OTTO Travel 2nd Carrier Assy with Sun Gear (P/N: 2401P1275, YN32W01024P1, 2401P1273, 2413J372), a premium aftermarket replacement designed for durability and precise fitment. This high-quality component restores reliable travel functionality to your heavy equipment, offering a cost-effective alternative to OEM parts
118-9949-OTTO
OTTO 118-9949 Oil Cooler Radiator for Caterpillar 312B Excavator Hydraulic Oil Cooler Heavy Equipment Cooling System Component
Maximize your Caterpillar 312B’s efficiency with the OTTO Oil Cooler Radiator (P/N: 118-9949), a premium aftermarket replacement designed for durability and precise fitment. This high-quality component restores reliable hydraulic oil cooling to your heavy equipment, offering a cost-effective alternative to OEM parts while protecting the cooling system.
353-6988-OTTO
OTTO E330D E336D E336D2 E340DL C9 Diesel Engine Valve Cover 3536988 353-6988 for CAT Excavator Parts
Maximize your CAT excavator’s performance with the OTTO Diesel Engine Valve Cover (P/N: 3536988 / 353-6988), a premium aftermarket replacement designed for durability and precise fitment for C9 engines. This high-quality component protects your engine’s valve train, offering a cost-effective alternative to OEM parts while ensuring reliable protection.
375-6988-OTTO
OTTO 375-6988 3756988 Fuel Pressure Sensor for CAT 320D2 323D2 330D2 336D2 C7.1 C4.4 Engine Sensor
Manufactured to OEM performance standards, this fuel pressure sensor features high-precision sensing elements and durable construction, resistant to harsh working conditions of construction machinery. It serves as a direct replacement for faulty original sensors, quickly restoring accurate fuel pressure monitoring for CAT equipment.
123-2148-OTTO
OTTO Pilot Valve 123-2148 1232148 Foot Pedal Valve for CAT 307 318B 320B 330B 312B 322B 315B 325B 345B 311B Excavator Parts
Crafted for heavy-duty construction applications, this aftermarket pilot valve meets the original equipment’s performance standards, ensuring reliable hydraulic signal transmission and durable use in harsh working conditions. It is a direct replacement part for worn or damaged foot pedal valves, restoring smooth and accurate control to the compatible CAT excavator models.
369-8491HE03-GH2-OTTO
OTTO 374F 390F Main Control Valve 369-8491HE03-GH2 Distributing Valve for Caterpillar Excavator Hydraulic Main Control
OTTO 374F 390F Main Control Valve 369-8491HE03-GH2 Distributing Valve for Caterpillar Excavator Hydraulic Main Control This used for EXCAVATOR,Original new and china could offer and With 3-12 months warranty
6d107-OTTO
OTTO Engine Rebuild Kit Gasket Set 6d107 Overhaul Gasket Kit for Cum-mins 6D107 Machinery Parts
Restore your engine’s sealing integrity with the OTTO 6D107 Overhaul Gasket Kit, a premium aftermarket engine rebuild gasket set engineered for Cummins 6D107 machinery engines. This high-quality complete gasket set ensures leak-proof performance and precise fitment, offering a cost-effective OEM alternative for full engine rebuild and maintenance.
513-2284-OTTO
OTTO 5132284 Main Relief Valve 513-2284 Relief Valve for Cat M317F M315F Main Valve
Protect your excavator’s hydraulic system with the OTTO 5132284 Main Relief Valve (P/N: 513-2284), a premium aftermarket relief valve engineered for CAT M317F and M315F main valves. This high-quality component maintains stable hydraulic pressure, offering a cost-effective OEM alternative that ensures reliable performance and prevents system damage.
4928171-OTTO
OTTO 4928171 Fuel Injector for M11 Engine Excavator Diesel Fuel System Replacement Part for Cummins M11 Series Heavy Machinery
Optimize your diesel engine’s fuel delivery with the OTTO 4928171 Fuel Injector, a premium aftermarket replacement crafted for Cummins M11 engines in excavators and heavy machinery. This high-quality component ensures precise fuel atomization and consistent performance, offering a cost-effective alternative to OEM parts for the Cummins M11 diesel fuel system.
3066-OTTO
OTTO Excavator Spare Parts Overhaul Repair Kit Liner Kit 3066 for Cat Engine Liner Set Piston Kit
Restore your engine’s peak performance with the OTTO 3066 Overhaul Repair Kit, a premium aftermarket liner and piston kit engineered for CAT 3066 engines in excavators. This all-in-one spare part set delivers OEM-matched precision and lasting durability, offering a cost-effective solution for full engine overhaul and maintenance.
5M7739-OTTO
OTTO Construction Machinery Parts D3 D4K D6D D6C D6D D6D Idler 5M7739 Front Idler for Cat
Maximize your construction machinery’s track system performance with the OTTO Front Idler (P/N: 5M7739), a premium aftermarket construction machinery part designed for durability and precise fitment. This high-quality idler ensures smooth track operation for Cat equipment, offering a cost-effective alternative to OEM parts.
312710-OTTO
OTTO ZAX200-3 Excavator Parts HPV118 Hydraulic Pump Head Cover 312710 for Hitachi
Maximize your excavator's hydraulic system performance with the OTTO HPV118 Hydraulic Pump Head Cover (P/N: 312710), a premium aftermarket replacement designed for durability and precise fitment. This high-quality head cover is a critical excavator part for Hitachi ZAX200-3, restoring reliable sealing and protection to the HPV118 hydraulic pump, while offering a cost-effective alternative to OEM parts.
4HK1-OTTO
OTTO 4HK1 Fuel Injection Pump High Pressure Pump for Excavator Diesel Engine Fuel System Heavy Machinery Fuel Pump Component
Maximize your excavator diesel engine’s fuel efficiency with the OTTO 4HK1 Fuel Injection Pump (High Pressure Pump), a premium aftermarket replacement designed for durability and precise fitment. This high-quality fuel pump restores reliable high-pressure fuel supply to your heavy machinery, offering a cost-effective alternative to OEM parts.
6506-22-5030-OTTO
OTTO Excavator Accessories Turbocharger 6506-22-5030 for KOMATSU 6D125 Diesel Engine Spare Parts Turbo
Maximize your excavator engine’s performance with the OTTO Excavator Accessories Turbocharger (P/N: 6506-22-5030), a premium aftermarket replacement designed for durability and precise fitment. This high-quality turbocharger restores reliable power and efficiency to your KOMATSU equipment, offering a cost-effective alternative to OEM spare parts.
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
4HK1
OTTO New Original Japan 4HK1TC 4HK1 Engine Low Power Isuzu 4HK1 Engine for Sale
OTTO New Original Japan 4HK1TC 4HK1 Engine Low Power Isuzu 4HK1 Engine for Sale This used for EXCAVATOR,Original new and china could offer and With 3-12 months warranty
4jb1
OTTO Made in China 4JB1 4JB1T with Turbo Engine for Sale ISUZU
OTTO Made in China 4JB1 4JB1T with Turbo Engine for Sale ISUZU 27001This 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.
2026 Spring Festival holiday arrangement:
January 08. 2026 2026 Spring Festival holiday arrangement:
Dear Friend, It is here by notified that the coming Spring Festival holiday arrangement: 10th Feb. 2026 to 23rd Feb. 2026.We will resume work on 24th Feb. Sorry for any inconveniences caused. Wish you and your family happiness and health!
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Merry Christmas!
December 23. 2025 Merry Christmas!
Merry Christmas and Happy New Year! Wishing you and your team a joyful holiday season and continued business success ahead.
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OTTO Excavator ISUZU ENGINE: EU Delivery in 7 Days
November 27. 2025 OTTO Excavator ISUZU ENGINE: EU Delivery in 7 Days
Attention EU customers! OTTO’s Italy warehouse is fully stocked—core excavator parts (including engines) ship to ALL EU countries and arrive in just 7 days! Covered nations: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden. In-stock, stable inventory, quality guaranteed! Livraison UE sous 7 jours, entrepôt en Italie Dentro de los 7 días de entrega en la UE, el almacén está en Italia Inquire now: otto-parts.com
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OTTO CATERPILLAR C9 ENGINE 100% BRAND-NEW CAT C9
November 25. 2025 OTTO CATERPILLAR C9 ENGINE 100% BRAND-NEW CAT C9
Grab Your Brand-New CAT C9 Engine – Limited Discount! Power your heavy machinery (like the iconic CAT excavator) with the 100% new Caterpillar C9 engine: built for rugged worksites, reliable performance, and long-haul durability. Perfect for mining, construction, or industrial fleets – this engine delivers the torque and efficiency CAT is famous for. Don’t miss our exclusive price cut: upgrade your equipment today to keep projects running strong. Shop now at otto-parts.com (OTTO) – your trusted source for premium CAT parts. Stock is limited – act fast!
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Isuzu 4HK1 Engine 8-98005631-0 starter relay fits
October 31. 2025 Isuzu 4HK1 Engine 8-98005631-0 starter relay fits
This 8-98005631 starter relay fits 4HK1 —tough enough for mine work.  Keeps starters firing right up, slashes downtime. Clients love the reliability, no fuss at all. Sells easy, perfect for your heavy-duty orders!
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Isuzu 6BG1 6HK1 6WG1 Engine 8-98341397-0 Generator
October 31. 2025 Isuzu 6BG1 6HK1 6WG1 Engine 8-98341397-0 Generator
This 8-98341397 generator fits 6BG1, 6HK1, 6WG1 —tough for mine work. Keeps power steady, slashes downtime. Clients love the reliability, sells easy. No hassle, just solid performance.
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P/N:386-3444  CAT Original ECU 200PCS
September 29. 2025 P/N:386-3444 CAT Original ECU 200PCS
We are offering 200 pieces of the CAT Original ECU with Part Number 386-3444 at a special promotional price. This ECU is compatible with models such as 323D2, 329D2, 330D2, 336D2, 374F, 390F, 320D2, and 336E, featuring engines like C4.4, C7.1, C9.3, C13, C15, and C18.  Hurry, only 200 units expected to arrive!
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National Day holiday arrangement 2025
September 11. 2025 National Day holiday arrangement 2025
Dear Friend, It is here by notified that the coming National Day holiday arrangement: 1st Oct, 2025 to 8th Oct, 2025. We will resume work on 9th Oct. Sorry for any inconveniences caused. Wish you and your family happiness and health!
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The 25th Jakarta International Expo
July 31. 2025 The 25th Jakarta International Expo
Dear Sir, It is hereby noticed that the coming The 25th Jakarta International Expo ,10~13th September. 2025.Booth No.: HALL A1-1004 Address:Concrete Show SEA – Indonesia, Water Indonesia, ADEXCO Opening hours (Week 1): 10.00 – 18.00 / 10-11 Sep (Wed – Thu) 09.30 – 18.00 / 12 Sep (Fri) 10.00 – 17.00 / 13 Sep (Sat) Welcome to cooperate,get rich together,and achieve a win-win situation. Best Regard! OTTO
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Dragon Boat Festival holiday 2025
May 15. 2025 Dragon Boat Festival holiday 2025
Dear Friend, It is here by notified that the coming Dragon Boat Festival holiday arrangement: 31st May. 2025 to 2nd June. 2025.We will resume work on 3rd June. Sorry for any inconveniences caused. Wish you and your family happiness and health!
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