The 138190066 Chrome Fan Shroud or Flywheel Blower Housing is designed to cover the flywheel during operation. 

The Flywheel Blower Housing has two major functions: First, prevent debris from contacting the flywheel and flywheel fan, including appendages that would result in injury. The other is to contain and direct air created by the flywheel fan to crucial areas under the block and around the jug to help cool the engine. 

Factory Chrome Blower Housings do not come with pull start recoils; they are not used. Feel free to mix and match colors for your unique style. If not using recoil to use an external electric starter, we recommend using our 620 blower housing cover to shield your flywheel from debris and to maintain the air cooling effect. 

OEM Replacement Dupor and BSP Engines but also fits 196cc 6.5hp Clone, Honda GX200, Ducar 196, Ducar/Tillotson 212E, Tillotson 196R/RS, Tillotson 212R, Ducar/Tillotson 212E, Predator 212 and BSP 196 and 212 Engines.

Imperfections are to be expected due to the manufacturing process. Mostly on the tabs and bolt holes.