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Outstanding Product Supply Service Provider for the Petroleum Industry

Supplier of Safety Protection for Diesel Engines and Generator Sets
Diesel Engine Safety Protection Supplier, Power System Complete Unit Supplier, Original Equipment Parts Supplier
Liyuan Machinery is a comprehensive enterprise specializing in the operation and sales of diesel engine safety protection, complete power systems, and genuine parts, integrating import and export operations with equipment manufacturing.
The company has long been dedicated to the sales of genuine Caterpillar, Cummins, and Volvo engines and generator sets, Allison and KX transmission sales, as well as the design and skid-mounted installation of engine power unit assemblies. It stands as an outstanding product supplier and service provider for the petroleum industry.Over the years, we have fully integrated resources and leveraged our comprehensive strengths. With ample inventory, genuine quality, and professional high-quality service, we have continuously grown and expanded in the fiercely competitive market. Our business spans industries including petroleum machinery, marine vessels, petrochemicals, and onshore/offshore oil and gas extraction.We consistently uphold our core values of “Customer First, Integrity, Collaboration, and Innovation” and the spirit of “Pursuit of Excellence” to continuously meet our partners' needs. Moving forward, the company will develop more distinctive products to provide industry peers with increasingly competitive offerings and services.
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Project Case Studies
Company Success Stories Showcase
Overhaul of CAT engines
The company overhauled two CAT engines according to customer requirements. Customer service personnel completed the overhaul task ahead of schedule with high quality, generating significant economic benefits for the customer.
YZ08, 08A DC Motor, F-1600 Mud Pump
CAT3512 Engine + F-1000 Mud Pump
The mud pump units were expedited for export to Indonesia and successfully passed acceptance inspection.
CATC15 Engine + F-500 Mud Pump
The mud pump units were expedited for export to Indonesia and successfully passed acceptance inspection.
CAT C15 engine + Allison S5620H transmission + F-500 mud pump
Exported desert trailer pump units to Kuwait, featuring optimized heat dissipation structures and filtration efficiency tailored for desert environments, meeting the customer's operational requirements.
CAT C15 engine + Allison M5620AR transmission
Completed the design, installation, and commissioning of the power unit for Shanghai Zhongman Group's XJ550 workover rig on schedule and to high standards. Provided technical training and installation guidance to the customer upon delivery.
Outstanding Product Supply Service Provider for the Petroleum Industry
Engines & Generator Sets & Transmissions
Brand-new, factory-original Caterpillar engine generator set
All-New Cummins Engine Generator Set
Brand-new, factory-original Allison and other brand transmissions
Complete Power Unit Design and Installation Services
Power Units for Oil and Gas Field Workover Rigs (XJ350/XJ550/XJ750, etc.)
Power units for oil and gas field pump sets (F500/F1000, etc.)
Genuine Parts
Brand-new Caterpillar Genuine Parts
All-new genuine Cummins parts
All-new Allison genuine parts
Other accessories (Williams/Parker/Murphy/Hydraulic Giant, etc.)

Supplier of Safety Protection for Diesel Engines and Generator Sets
PACBRAKE China's exclusive distributor in Canada, widely used in oil and gas fields, mining, power plants, firefighting, marine, and other sectors.
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Oil and gas fields
Oil and gas fields
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Mine
Mine
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power plant
power plant
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Firefighting
Firefighting
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vessel
vessel
News & Updates
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Supplier of safety protection for diesel engines and generator sets, Outstanding product supply service provider for the petroleum industry, Supplier of safety protection for diesel engines and generator sets, Outstanding product supply service provider for the petroleum industry, Supplier of safety protection for diesel engines and generator sets, Outstanding product supply service provider for the petroleum industry.
10-30
2025
Liyuan Machinery Technology Showcase 2D and 3D Design Technology
Technical Design - 2D Design The company's technical department staff possesses extensive experience in component design, manufacturing processes, and product assembly. They are capable of addressing product power, heat dissipation, and other critical aspects during the design phase.
10-30
2025
Liyuan Machinery Service Division Brand Product Sales and Design Assembly
Service Overview Sales of CATERPILLAR full-series engines, complete generator sets, and genuine parts Sales of CUMMINS full-series engines, complete generator sets, and genuine parts...
10-30
2025
Liyuan Machinery: Premier Supplier of Safety Protection Solutions for the Petroleum Industry, Diesel Engines, and Generator Sets
Supplier of Safety Protection for Diesel Engines and Generator Sets Diesel engine safety protection to prevent runaway incidents. Applicable to diesel engines, emergency generator sets, commercial vehicles, specialized equipment, and other installations...
10-29
2025
Introduction to Liyuan Machinery Co., Ltd.
Liyuan Machinery (Tianjin) Co., Ltd., located in the Tianjin Pilot Free Trade Zone, is a company specializing in the import and export of power equipment, mechanical products, genuine imported spare parts, electronic equipment, and more...
Partner
The choice of many outstanding enterprises
Liyuan Machinery (Tianjin) Co., Ltd. sells full-series engines, complete generator sets, and genuine parts for CATERPILLAR, CUMMINS, and VOLVO; full-series transmissions and genuine parts for ALLISON and Kaixing; provides design and skid-mounted installation of engine power unit assemblies; design and assembly of pump sets for the oilfield industry; formulation and assembly of generator set design solutions; and after-sales service and maintenance for engines, generator sets, and power units.
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Bonded zone warehouses and company-owned warehouses maintain ample inventory year-round.
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Discounted pricing
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Professional Services







