An Export Business Built Around Engine Cooling
Hunan Woojin Autoparts Co., Ltd is an export enterprise supplying automotive parts, mainly engine cooling system components — water flanges, thermostat assemblies, sensors, rubber hoses and tubes, engine mountings and related parts, more than 4000 types, covering German, French, Japanese, American and Korean vehicles, with customers in Europe, the Middle East and South America.

Cooling System Parts for the Independent Aftermarket
The range concentrates on one system rather than spreading across a whole vehicle. That is a deliberate choice: cooling parts are bought by reference, and depth inside a family is worth more to a buyer than breadth across unrelated ones.
Focused on one system
Water flanges, thermostat assemblies, sensors, rubber hoses and tubes, engine mountings and related cooling parts.
Built for export
Packing and carton marking set up for sea freight into Europe, the Middle East and South America rather than for domestic distribution.
Sample-based production
Parts produced from samples supplied by the customer, with mould development where the tooling no longer exists.
What Is on This Site
Published figures below are counted from the catalogue itself rather than rounded up for effect.
| Part family | Published references |
|---|---|
| Thermostat Housing Assembly | 59 |
| Turbo and Intercooler Hose | 43 |
| Air Intake Hose | 38 |
| Radiator Hose | 19 |
| Water Flange | 11 |
| Coolant Hose | 6 |
| Crankcase Vent Hose | 2 |
| Total published | 178 |
- 4000+Types in the full range
- 12Vehicle makes published
- 5Vehicle origins covered
- 3Export regions
Company age, factory size, production capacity, headcount and certification status are not stated on the source catalogue and are therefore not claimed here. They are available directly on request.
What a Customer Actually Gets
A written quotation, not a portal
References, quantities, packing details and carton counts in one document. There is no form on this website and no account to create.
Questions before guesses
Where a reference splits across model years, the question comes back before the quotation rather than after the delivery.
Inspection before despatch
Concentrated on the features that decide fitment: sealing faces, sensor bosses, connector geometry and cuff dimensions.
A stable internal reference
So reordering does not mean searching the OEM number again.
Mould development when the part is gone
An obsolete reference is a tooling question, not the end of the conversation.
Markets and Vehicle Coverage
Export markets
Europe, the Middle East and South America.
Packing, carton marking and documentation are built around sea freight and around goods-in checks at the far end.
Vehicle coverage
German, French, Japanese, American and Korean vehicles. The deepest published coverage is BMW (62 references), Mercedes-Benz (53 references) and Audi (30 references).
About Hunan Woojin Autoparts
Who is Hunan Woojin Autoparts
An export enterprise based in Changsha, Hunan Province, China, supplying automotive parts with the focus on engine cooling system components: water flanges, thermostat assemblies, sensors, rubber hoses and tubes and engine mountings.
How large is the range
More than 4000 types, covering German, French, Japanese, American and Korean vehicles. 178 references are published on this site.
Which markets do you sell into
Europe, the Middle East and South America are the established markets for the range.
Do you make parts to a customer's sample
Yes. Production from customer-supplied samples and mould development are part of the service, which is how obsolete references are brought back.
What certifications do you hold
Certification documents are not published on this site. Ask by email for the documentation that applies to your market and the references you are buying.
Do you have a factory or are you a trading company
The business describes itself as an export enterprise offering mould development and production from supplied samples. Ask for specifics on a particular reference and you will get a direct answer.
Start With a Reference List
Send the numbers and quantities and the quotation comes back in writing.


