The 10-400405 kit distributor gear is an OEM ignition system gear kit used in Continental S-1200 series magnetos. It drives the internal distributor mechanism that routes high-voltage output to the correct spark plug towers in the correct firing order for 4-cylinder and 8-cylinder engine configurations.

The gear is part of the magneto timing and distribution system and is critical for maintaining correct ignition sequencing and engine operation.

Key features include:

OEM Continental magneto distributor gear kit
Used in 4-cylinder and 8-cylinder engine configurations
Precision-machined steel gear components
Ensures correct ignition timing and spark distribution
Installed inside S-1200 series magnetos
Designed for continuous high-RPM operation
Oil-lubricated internal magneto environment
Maintains correct firing order and synchronization
Compatible with specific Continental ignition systems (model-dependent use)
Used in certified aircraft magneto overhaul and maintenance procedures