BSA part number 66-8092.
66-2007 Cam Pinion Spindle Bolt Timing Gear BSA B31 B33 M20 M21 Goldstar
BSA B31 B33 M20 M21 TIMING COVER OIL SEALS X2 66-1923
Genuine Lucas BSA B31 B33 M20 M21 M33 46-55 Cloth Wiring Loom Harness 865493 UK
BSA B31 B33 M20 M21 MAG DYNO STRAPS POLISHED STAINLESS UK MADE
BSA SINGLE B31 B33 M20 M21 C10 C11 1937-54 CUSH DRIVE NUT BSA O65-2520 NOS
BSA A B M GROUP FORK SPRINGS PAIR 'NEW' 89-5036 A7 A10 B31 B33 M20 M21 UK MADE