http://www.globalsecurity.org/military/world/china/ws13.htm
The WS13 engine is 4.14 meters long, 1.02 meters in diameter, weighing 1,135 kg. The engine will have a major repair interval of roughly 810 hrs, service life span 2200 hrs, both far exceed the RD-33 engine.
A me non pare che i motori domestici abbiano durate inferiori agli omologhi russi.