YUAN YI combines manufacturing, product development, sourcing, and international trade to deliver dependable automotive engine and powertrain solutions for businesses worldwide.

Our Manufacturing & Supply Capabilities

From factory-direct production to broader engine sourcing, we coordinate technical evaluation, quality control, and international delivery for standard and customized requirements.

01

Manufacturing

Precision machining, assembly, inspection, and testing support for automotive engines and powertrain products.

02

Supply & Sourcing

A wider range of gasoline and diesel engine solutions for passenger and light commercial vehicle applications.

03

OEM & ODM

Project evaluation and customized development based on samples, drawings, specifications, or detailed requirements.

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Fuji Honing Machine · Japan
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Demajuga Machining Center
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Engine Test Machine

Quality & IATF 16949

Quality control is built into our engine supply process. Depending on the engine type and project, inspections may include dimensional checks, assembly inspection, sealing tests, functional testing, and other applicable procedures.

 

✓ Dimensional Checks
✓ Assembly Inspection
✓ Sealing Tests
✓ Functional Testing

Certification Transparency

Our manufacturing facility operates under an IATF 16949 quality management system. The relevant certification belongs to the certified manufacturing entity and can be provided for verification upon request.

Global Engine Supply

We serve engine distributors, auto parts wholesalers, importers, repair networks, and other automotive businesses with compatibility support and practical international supply solutions.

Vehicle Applications

Passenger vehicles, SUVs, pickup trucks, vans, and light commercial vehicles.

Product Range

Complete engines, long blocks, short blocks, cylinder heads, cylinder blocks, and selected engine components.

Compatibility Support

Send a VIN, engine code, vehicle model, year, displacement, or original engine photos for cross-checking.

Partner Solutions

Volume pricing, market-specific product selections, customized packaging, sourcing, and OEM/ODM cooperation.

Frequently Asked Questions

Clear answers about our business model, product range, quality process, delivery, and cooperation.

We are both a manufacturer and a trading company, specializing in automotive engines and powertrain products.

By integrating manufacturing, product development, sourcing, and international trade, we can provide both factory-direct products and a wider range of engine solutions.

We also support OEM and ODM projects, enabling us to serve distributors, wholesalers, repair networks, and other automotive businesses worldwide.

We specialize in gasoline and diesel engines for passenger vehicles, SUVs, pickup trucks, vans, and light commercial vehicles.

Our product range covers complete engines, long blocks, short blocks, cylinder heads, cylinder blocks, and selected engine components for various Japanese, Korean, European, American, and Chinese vehicle applications.

If you are unsure which engine you need, simply send us the engine code, VIN, vehicle model, year, or photos of the original engine, and our team will help you verify compatibility.

Yes. We support OEM, ODM, and customized production for qualified projects.

Customers can provide original samples, technical drawings, specifications, or detailed product requirements. Our technical team and manufacturing partners will evaluate the project before sample development and production.

A typical development process is:

Requirements → Technical Evaluation → Sample Development → Testing & Confirmation → Mass Production

Quality control is an important part of our engine supply process.

Products are inspected and tested according to the applicable product requirements before shipment. Depending on the engine type and project, inspections may include dimensional checks, assembly inspection, sealing tests, functional testing, and other quality-control procedures.

Our cooperating manufacturing facility operates under an IATF 16949 quality management system. The relevant certification belongs to the certified manufacturing entity and can be provided for verification upon request.

For standard products that are available in stock, we can normally arrange shipment within 3 working days after payment confirmation.

Lead times for larger quantities, customized engines, or OEM/ODM projects depend on product specifications and production requirements. The estimated delivery schedule will be confirmed before the order is finalized.

We provide a 12-month warranty for applicable engine products, subject to the specific product and agreed sales terms.

If a problem occurs, please provide your order information, engine model or code, and clear photos or videos showing the issue. Our team will review the case and work with you to determine an appropriate solution.

Yes. Engine compatibility can vary even within the same vehicle model and model year.

To reduce the risk of ordering the wrong engine, we recommend providing as much information as possible, such as:

VIN · Engine Code · Vehicle Model · Model Year · Displacement · Original Engine Photos

Our team will cross-check the information before confirming the recommended engine.

Yes. We welcome cooperation with engine distributors, auto parts wholesalers, importers, repair networks, and automotive businesses worldwide.

For long-term partners, we can discuss volume pricing, product sourcing, market-specific engine selections, customized packaging, OEM/ODM projects, and other forms of cooperation.

Need help finding the correct engine?

Send us your VIN, engine code, vehicle details, or original engine photos.

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