I have found one whit help from a member from another forum.
the part is D8ZZ 17A553-B
just in case somebody else also need one.
Simon
PANTERA INTERNATIONAL
A DE TOMASO CAR CLUB
Presents the De Tomaso Forums
The On-Line Meeting Place for De Tomaso Owners and Enthusiasts From Around the World
Clicking on the banner will take you to the sponsor's website.