Bosch to make new alternator in Wales.
The new Bosch alternator can improve a vehicle's fuel economy by up to 6mpg. It is quieter than current models and more powerful.
The improvements are the result of an innovative ``flat pack'' manufacturing technique, which achieves a much higher density of copper wires in the unit's windings.
Bosch will supply the 14V LI-X alternators in three different sizes with outputs ranging from 1.9 to 3.8 kilowatts.
The model range is extremely flexible and power outputs can easily be adjusted for both diesel and petrol engines.
Bosch also plans a 4 kilowatt, 42 volt version.
The LI-X will be showcased at the Frankfurt Auto Show in September and production will start at Bosch's UK plant at Llantrisant, near Cardiff, at the beginning of next year.
The new alternator's introduction at the plant will safeguard the work of 1,000 people.
Adam Willmott, technical director at the Cardiff plant, said it was seen as a demonstration of Bosch's commitment to the plant's long-term future.
The plant is the main alternator assembly facility for Bosch in Western Europe.
It produces about four million alternators a year for a variety of car and van makers and while the new unit will initially provide additional work the company expects it will gradually replace the current series of alternators.