First, have a qualified qualification certificate
High-quality and durable automobile engine cylinder heads have their own brands. Choosing a good brand is the guarantee of its quality. Qualified car engine cylinder heads have qualified qualification certificates. Pay attention to the completeness of the packaging seals when purchasing, and whether the serial number of the body outside the package is the same as the serial number affixed to the fuselage. In addition, it should also have a certificate of compliance and warranty card , Product specifications and other complete qualifications.
Second, there must be an intact body
In addition to having a qualified qualification certificate, the body must be inspected in conjunction with the actual situation. First of all, observe whether the appearance of the fuselage is complete. In addition, check the details. The specific method is best to check the manual. There will be descriptions of each part on the manual. Finally, after completing these inspections, install it in the car as soon as possible and put it into use. This is the most direct way to inspect the cylinder head of the car.
Third, there must be corresponding after-sales tracking
In addition to the good use of good-quality automobile engine cylinder heads, there must be corresponding after-sales tracking. For these mechanical parts, if they encounter damage, the possibility of the purchaser's own repair is very low, because they must have professional knowledge and technology. Therefore, perfect after-sales tracking is very important. Pay attention to whether there is customer service contact information and contact information to provide warranty.