| The hydraulic fluid used to transmit hydraulic pressure through the brake lines in a brake system. | |
| Alternating current | |
| A magnetic, hall effect, optical or magneto resistive sensor usually mounted internally in the engine, externally to the engine are in the distributor to inform the ECM or PCM of the crankshaft position location of No. 1 piston, and crankshaft speed for ignition timing and other calculationneeded by the system where RPM is in input. | |
| Enclosure for the differential and pinion gears. Can be removable are integral part of axle housing. Also called differential housing |