| A material that provides a path for the flow of electrical current or heat. | |
| A flexible coupling between two shafts that allows each shaft to maintain the same speed regardless of operating angle. | |
| Part of the distributor ignition system that triggers the spark and directs it through the wires to the spark plugs. | |
| The lower half of the bearing the saddle. It is removable, as in main cap or rod cap. |