Our Warranty is 2-year/ unlimited miles beginning at the date of purchase. Subject to limitations set forth, King Cylinder Heads will replace product within the warranty period once we determine that the product is defective. The warranty covers parts replacement only. All products must be returned to King Cylinder Heads to be inspected under the warranty. No warranty determination can be made until the part is returned to and inspected by King Cylinder Heads.
This warranty does not apply to any of the following:
Installation of incorrect part. It is the installers responsibility to check all parts for correctness prior to installation. Any installed part either ordered incorrectly by the customer or ship incorrectly by King Cylinder Heads is not covered under the warranty.
Damage due to overheating, pre-ignition or detonation.
Any damage that occurs due to improper installation
Any product used for competitive racing or performance enhancements
Any product used for marine applications