Genuine Briggs & Stratton ignition module / Coil / Ignition Armature 595554.
Current part number is 595554 (the previous part numbers were 796499 and 595959)
This is the Ignition Armature Ignition armature for Briggs & Stratton Professional, 800E, 850E, 850EX, 875EX and 950 engines
The exhaust is on right of the engine when viewed from behind
Coil mounting hole centres are approximately 59mm apart