| Source | Target | | accionado directamente | directly operated |
| accionado manualmente | manually operated |
| accionamiento | operating mechanism |
| aceite | oil |
| aceite de hidrocarburo sintético | synthetic hydrocarbon oil |
| aceite del cárter | crankcase oil |
| aceite HD | heavy duty oil HD |
| aceite lubricante mixto | mixed lubricant oil |
| aceite mineral | mineral oil |
| aceite monogrado | monograde oil |
| aceite multigrado | multigrade oil |
| aceite pesado | heavy fuel oil |
| aceites lubricantes | oils |
| activación del tacógrafo | activation of tachograph |
| aguja del flotador del carburador | float needle valve of a carburetor |
| agujero de purga de aceite | oil drain hole |
| alimentación de combustible | supply of fuel |
| anillo de lámina | multipiece oil ring |
| anillo exterior | outer race |
| anillo hidráulico | oil ring |
| anillo obturador radial | radial shaft seal |
| anillo ranurado de aceite | slotted oil control ring |
| anillo Seeger para ejes | outer circlip |
| apertura a la presión final | opening to end pressure |
| árbol de bomba de aceite | oil pump shaft |
| árbol de levas superior (ALS) | over-head camshaft (OHC) |
| aro de engrase | lubricating oil ring |
| asiento oscilante | swivel seat |
| atornillado en tipo estándar | standard screw on type |
| banalización del personal de conducción | use of crews on all engines |
| bandeja colectora de aceite | oil drip tray |
| baño de aceite | oil bath |
| base del bastidor | foot of frame |
| boca escape | exhaust outlet |
| bomba de aceite | oil pump |
| brazo | outrigger |
| brazo oscilante de mando | control yoke |
| brazo oscilante transversal | wishbone |
| cabeza de filtro de aceite | oil filter head |
| cabeza oval | oval head |
| cadena de oruga | caterpillar track |
| caja de depósito | oddment box |
| caja de engrase | oil cup |
| cambio de sentido de rotación | change of direction of rotation |
| cambio de velocidad | change of speed |
| campo de visión | field of vision |
| cantidad de salida | output quantity |
| capacidad frigorífica volumétrica | refrigerating effect per unit of swept volume |
| cárter de aceite | oil pan |
| cárter del aceite | oil sump |
| caudal de salida | output capacity |
| centrífuga de aceite | oil centrifuge |
| chapa de salpicadero de aceite | oil deflector plate |
| chapa deflectora de aceite | oil baffle plate |
| chapa exterior | outer panel |
| chapa recolectora de aceite | oil catch plate |
| ciclo de Otto | Otto cycle |
| cilindrada de un útil neumático | swept volume of a pneumatic tool |
| cojinete exterior | outer bearing |
| colador de aceite | oil strainer |
