Piston for chain tensioner Simplex
for all 2-valve boxer models after september 1978
Compare 11311335579 / 11-31-1-335-579
Spring for chain tensioner Duplex
for all /5, /6, /7 models until...
Chain tensioner Duplex
for all /5, /6, /7 models until 9/1978
...
Duplex timing chain with chain link
/5 to /7 models
Duplex...