What are the good ways to buy auto parts?

How to buy the most suitable and cost-effective auto parts? Here, I recommend the following tips to help you choose the best auto parts: Lost parts should be returned or replaced.

1. Look at the packaging. The packaging of original accessories is generally standardized, with unified standard specifications and clear and regular printing, while the packaging of counterfeit products is relatively crude and it is often easy to find flaws in the packaging;

2. Look at the color. Some original accessories have a certain color specified on the surface. If other colors are encountered, they are counterfeit and inferior parts;

3. Look at the appearance. The printing or casting and markings on the surface of original accessories are clear and regular, while the appearance of counterfeit products is rough;

4. Look at the paint. Illegal merchants will simply process the waste accessories, such as disassembly, assembly, splicing, assembling, painting, etc., and then sell them as qualified products to illegally obtain high profits;

5. Look at the texture. The materials of original accessories are qualified materials according to design requirements, while counterfeit products are mostly made of cheap and inferior materials;

6. Look at the craftsmanship. Although the appearance of inferior products is sometimes good, due to poor manufacturing technology, cracks, sand holes, slag inclusions, burrs or bumps are prone to occur;

7. Look at "storage" If auto parts have problems such as cracking, oxidation, discoloration or aging, it may be caused by poor storage environment, long storage time, poor material itself, etc.;

8. Check "joint" If the clutch plate rivet is loose, the brake hose is debonded, the electrical parts joint is desoldered, and the paper filter element joint is detached, it cannot be used;

9. Check the logo Some regular parts are marked with certain marks, such as the gear mark, the piston top mark and other assembly marks to ensure the correct installation of the parts. Those without them cannot be purchased;

10. Check for missing parts Regular assembly parts must be complete and intact to ensure smooth installation and normal operation. Some small parts on some assembly parts are missing, which are generally "parallel imports", which makes installation difficult. Often due to the shortage of individual small parts, the entire assembly parts are scrapped;

11. Check the protective layer In order to facilitate storage and prevent parts from bumping, parts have a protective layer before leaving the factory. For example, bushings, large and small bearings, pistons, valves, etc. are generally protected with paraffin to prevent their surface damage. If these important accessories do not have a protective layer on the surface, they are mostly "parallel imports";

12. Check the certificates. Some important parts, especially assemblies, such as carburetors, distributors, generators, etc., are generally accompanied by instructions and certificates of conformity when leaving the factory to guide users in installation, use and maintenance. If they do not have these, they are mostly counterfeit and shoddy products;

13. Check the specifications. When purchasing auto parts, it is necessary to find out the main technical parameters, and special technologies must meet the requirements of use. Some counterfeit and shoddy products look almost the same as the real ones, but they are not suitable when installed, either too big or too small, and they are always not satisfactory to use, and leave potential accidents.

14. The test report issued by a third party can not only prove the authenticity, but also show its quality.