In older vehicles this is done via an Ignition Distributor, with newer vehicles using Multi-Outlet Coils with Ignition Leads connected directly to the Spark Plugs. Connector Type: Connector Type SAE | Resistive Ignition Cable | Connector Type M4.
Genuine Intermotor Ignition Cable Kit - 73931
Genuine Intermotor Ignition Cable Kit - 73833
Genuine Intermotor Ignition Condenser - 34570
Genuine Intermotor Ignition Condenser - 33950
For Reliant Robin 850 Genuine Intermotor Ignition Condenser
Genuine Intermotor Ignition Condenser - 34600
