Buying Guide
How To Read an OE Number and Match a Replacement Part
A practical method for reading the reference number on a used component and matching it to a replacement listing without guesswork.
Knowledge Center
Practical guides on identifying, diagnosing and specifying the components we supply. Written for workshops, distributors and buyers rather than for search engines.
Technical Guide
How an Air Suspension System Works
The parts that make up an air suspension system, what each one does, and why a failure in one component quickly loads the others.
Troubleshooting
Signs an Air Strut or Compressor Is Failing
The symptoms that point to a leaking air spring, a worn compressor or a valve block fault, and how to tell them apart before ordering parts.
Buying Guide
Choosing the Right Air Conditioning Compressor
Pulley type, groove count, refrigerant, connector and displacement — the details that decide whether an A/C compressor will actually fit.
Troubleshooting
Diagnosing Control Arm and Tie Rod Wear
How to tell a worn ball joint from a failed bush, and why replacing suspension links in the wrong order wastes an alignment.
Troubleshooting
Ignition Coil Failure and How To Confirm It
Misfire symptoms, the cylinder swap test, and the secondary causes that destroy a new coil within weeks.
Technical Guide
Water Pump and Thermostat Replacement Explained
How coolant pumps and thermostats fail, why they are replaced together, and what to check before ordering.
Procurement Guide
How To Buy Replacement Auto Parts From a Chinese Supplier
A working process for distributors and workshops: what to ask, what to check, how to pack and how to keep repeat orders straightforward.
FAQ
Frequently Asked Questions
Are these guides about your own products
They are general technical and buying guides for the component groups we supply. They are written to help you diagnose and specify correctly, and each one links to the matching listings in our catalogue.
Do you publish specifications for individual parts
Dimensions, materials and certification data are confirmed per reference on request rather than published for every listing, because our catalogue records do not hold that data for every item.
Can you help me diagnose a fault
We can help you identify a part from a photograph and a VIN. For a diagnosis, work with a qualified technician — then send us the reference. WhatsApp +86 135 3142 1489.
Next Step
Still Not Sure Which Part You Need
Send a photograph and the VIN and we will identify it for you.