The plan, known as CAP DPR, is part of the group’s CAP 2010 cost-cutting plan announced last year.
The introduction of a “complementary” range of spare parts to the existing range of original parts aims to regain customers among owners of older Peugeot and Citroen vehicles.
There are around 75 million vehicles aged between 4 and 9 years in Europe, of which around 10 million are Peugeots or Citroens.
The new range of parts will be sold under the European brand, the name of a repair network traditionally linked to Citroen, for the two carmakers.
The range of European parts will rise to 6,000 or 7,000 during 2008 and 15,000 in 2009 from its current level of 3,000. It will be launched initially in France, Germany, Italy, Spain and the UK before being expanded to 25 European countries.
The group is aiming to increase spare parts sales by 3-5 percent.
Last year, the group posted 4 billion euros of spare parts sales, a 3.5 percent increase on the previous year.
The CAP DPR plan is also targeting a reduction in stock management and logistics costs