FRANKFURT, West Germany (AP) _ A neo-Nazi committed suicide in his jail cell Sunday, two days after receiving a 14-year prison term for bank robberies and for car bombings that wounded two U.S. soldiers, authorities said.

Walther Kexel, 23, hanged himself with his belt in his cell in the Frankfurt-Preungesheim prison, according to Hubert Harth, a spokesman for the Hesse state Justice Ministry.

Prison officials found a note in the cell in which Kexel said he was not willing to spend a large portion of his life behind bars to satisfy ''West German justice,'' Harth said.

A Frankfurt court sentenced Kexel and four other West German neo-Nazis on Friday to terms ranging from five to 14 years after convicting them of planting three car bombs on Dec. 14 and 15, 1982, in central part of the country.

Two U.S. Amry soldiers, a captain in Darmstadt and a specialst 5 in Butzbach, were wounded when they sat down in the driver's seats of their private cars and triggered pressure plates that set off the bombs.

A third American soldier in Frankfurt escaped injury when the bomb rigged to his car failed to detonate.

The five were also convicted of robbing five banks in 1982. The money was used to finance the group's terrorist activity, prosecutors said.

Kexel got the longest sentence as the ringleader of a right-wing group espousing neo-Nazi ideology.

Helge Blasche, 42, Hans-Peter Fraas, 24, and Dieter Sporleber, 24, were sentenced to 10, 81/2 and 7 years in jail respectively. Ulrich Tillmannn, 23, was sentenced to five years.