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Yanmar & Isuzu 4TNV Diesel Engine Manufacturer | B2B Wholesale Supplier

Engineering Diesel Power Systems Since 1942

Three generations of diesel engine expertise, operating across Fujian Province, China delivering factory-direct supply, OEM solutions, and bulk distribution for global industrial buyers.

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Yanmar & Isuzu 4TNV Diesel Engine Manufacturer

B2B Wholesale Supplier

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For over 80 years and across three generations, XiaMenJin HuaSen Propulsion System Co., Ltd. has been building and supplying diesel engines that global industries rely on every day. We manufacture and wholesale Yanmar 4TNV series, Isuzu diesel engines, Cummins, and Deutz power units – along with Bosch, Denso, and Delphi fuel injection systems. Whether you are a distributor, OEM partner, or bulk buyer, we offer factory-direct pricing, verified quality, and a supply chain built around your business needs.

Industries & Applications We Serve

Diesel engines do not live in showrooms – they live in mud, dust, salt water, and heat. The industries that buy from us share one common requirement: the engine has to start, run, and keep running under conditions that would expose a weak product very quickly. Over the past 80 years, our engines have found their way into some of the most demanding operating environments on the planet. Here is where they work.

Construction & Heavy Equipment

Mini excavators, full-size excavators, wheel loaders, motor graders, compactors, and tower cranes – construction machinery puts diesel engines through a punishing daily cycle.

Agriculture & Farming Machinery

From compact tractors and rice transplanters to large harvesters and irrigation pump sets, agricultural machinery runs on diesel engines that need to perform season after season without expensive breakdowns.

Power Generation

When the grid goes down, diesel generators keep hospitals, data centers, factories, and telecommunications infrastructure running. We supply diesel engines and complete generator sets for both standby and continuous-duty power applications.

Mining & Quarrying

Underground and open-pit mining operations demand engines with high torque output, strong durability in high-dust environments, and the ability to run at altitude without significant power loss. Our Deutz air-cooled engines and heavy-duty Cummins units are well-established in mining applications.

Marine & Water Applications

Marine diesel engines face a unique combination of challenges – salt air corrosion, continuous load cycles, and the practical difficulty of doing engine work at sea. Our marine engine supply includes Yanmar marine diesel units, auxiliary power systems, and water pump drives.

OEM Manufacturing & Industrial Systems

A growing number of equipment manufacturers integrate our engines directly into their own product lines under OEM supply agreements. We offer custom engine configurations, co-branded packaging, and dedicated supply programs for manufacturers who need a stable, qualified supplier behind their product.

Why Choose Us

XiaMenJin HuaSen Propulsion System Co., Ltd.

When choosing a diesel engine supplier, it’s not just about the price; quality, technical support, and reliable connections matter too. XiaMen Jin HuaSen provides direct-from-factory manufacturing and quality assurance, offering performance at a low price. And our team offers OEM-level support for customization services, allowing companies to get engines tailored to their needs. Our expert team and parts dealers have years of experience, offering advice, not guesswork. As a supplier for Yanmar, Isuzu, Cummins, and other brands, we provide original parts, easy international shipping, and guaranteed supply for B2B clients.

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+ 86 186 5926 1725

Established Legacy

Over 80 years of experience in diesel engine sales and repair, with a legacy that dates back to 1942.

Generational Expertise

A family-owned business passed down through three generations, demonstrating long-term dedication and expertise.

Commitment to Quality

Consistent focus on high-quality diesel engine supplier and repair services over decades, adapting to industry advancements.

Operational Growth

Currently operating three companies in Fujian Province, China, showcasing strong regional presence and capacity.

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Request a Free Wholesale Quote

Just let us know the model and quantity you are looking for and your country, and we will send you a detailed factory quote within 24 business hours. No vague estimates, no follow-up runaround, no pressure. Just a straightforward quote from a supplier who knows exactly what your order involves. If you have technical requirements or OEM specifications, include these as well, and our engineers will check before quoting.

Our Certifications & Quality Standards

In the industrial engine market, a supplier’s quality claims are only as good as the documentation behind them. Any trading company can put “high quality” on a webpage. What actually matters – especially for buyers importing into regulated markets – is whether the engines carry internationally recognized certifications that hold up to customs inspection, OEM audit, and end-user scrutiny. Our engines are certified to the following international standards, and we provide full compliance documentation with every shipment.

GB4

China National Standard IV

Our engines comply with China’s GB4 non-road diesel machinery emission standards – confirmed by multi-stage emission and combustion tests.

EPA

U.S. EPA Tier 4

EPA Tier 4 ensures our engines comply with the emissions standards required by the U.S. federal government – essential for customers supplying to the American market.

EC3

EU Stage IIIA / CE

EC Stage 3 is European compliance for emissions of diesel industrial engines – mandatory for import and installation in the EU.

Industrial Diesel Engine

Powering Efficiency and Reliability
for Heavy-Duty Industrial Applications

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Diesel Injection System

Enhancing Performance and Fuel Efficiency
with Advanced Diesel Injection Technology

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Marine Diesel Engine

Reliable Power and Performance for
Seamless Marine Operations

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Facility & Vehicle

State-of-the-Art Facilities and Advanced
Vehicles for Optimal Performance

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Our Products

Our Diesel Engine Product Range

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We do not carry a little bit of everything and hope for the best. Our inventory is focused, deep, and purpose-built for industrial B2B buyers who need consistent supply across multiple order cycles. Every engine we stock – whether new, rebuilt, or OEM-configured – goes through a structured multi-stage inspection before it ships. Here is what we carry:

We offer dependable diesel products across popular platforms, from Yanmar 4TNV range engines to rugged Isuzu engines to robust Cummins engines, capable of delivering consistent power, efficiency, and durability for construction, agricultural, and industrial machinery. In addition to full engine assemblies, our diesel fuel injection systems include Bosch, Denso, Delphi, and Caterpillar injectors – supplied new or remanufactured to tight tolerances for optimum fuel delivery and emission control.

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