B31/B33 ECHAPPEMENT
!

EXHAUST COOLER
65-2890
!

Alloy, 1 5/8" diameter.

SILENCER 1954-57
D637E
!

SILENCER B31/33 PLUNGER TYPE
D637P
!

SILENCER B31/33 RIGID FRAME
D637R
!
1946-50

SILENCER 1958 UP
D637S
!

EXHAUST PIPE EARLY

XB45
!
B31/32/33/34 swinging arm  early hole lip-ex port = 31,5 cm