Piston Ring
Timing Kit
Seal ring
Cylinder Head
Cylinder Liner


Company Profile

Changsha HaoChang Machinery Co.,Ltd is a Company of Manufacturing and trading engine parts of diesel and gasoline engine including Crankshaft,Piston ring,Cylinder Liner,Cylinder Head and Timing Chain Kit.

Diesel engine parts are applicable to ship,generator set, haulage motor,engineering machinery,truck,bus,auto-bus,tractor and so on, and we provide more than 200 models including serieses of America,Germany,Japan and Korea.

Gasoline engine parts are applicable to Jeep,SUV,commercial vehicle and sedan car.Our company provides 600 more models including series of America,Europe,Japan and Korea.
We started to export crankshaft since 1999. The first crankshaft we developed has been exported more than 200,000 pieces, which has made us the Excellent Supplier for its flawless craft and Zero-negative feedback during the past 18 years.

Models of timing chain kit are increasing from dozens to Six Hundreds more, which cover the most among all domestic suppliers,supplied for some international companies of North and South America and Europe, and also completed for Huachen and Dongan of Harbin.

We are capable to manufacture iron and steel piston rings from different materials, of which diameters are from 30mm to 500mm. Our piston rings are completed for Yuchai and Shanghai Volkswagen, and industrial seal rings are also developed, such as hydro-cylinder,air compressor,gear case and air blower, which are supplied 30,000 pieces annually for Thailand auto manufacturing companies. We have established several brands, such as Dieseltek,Telford,Diesel,Sammitr, Dynagear and so on.

So far, we have our own manufacturing base for crankshaft,piston ring,cylinder liner and timing chain kit, and have established a stable business relationships with 20 more supporting manufacturers. We also have a high-effective team to develop new products and provide more kinds of engine parts.

Our Advantages

Strictly according to ISO9000/TS16949 
One Year Quality Guarantee after installing 
Experiences of completing for domestic main engine manufacturers and cooperating with international brands

Prompt ad flexible solutions

Sample/Trial Order Accepted

Our Values

Team work
Professional skills

Our Aim

Be the first class supplier of the industry.



 Culture of HC Company

Customer Show