Triumph Exhaust Camshaft Nut LH Thread - Unit 500/650/750cc Models - Circa 1970-87
Exhaust camshaft retaining nut on all 650/750cc twins from 1970 onwards + T100 models from 1970-74.
Also correct fitment for both cams on Trident and BSA Rocket 3 models.
3/4" x UNF 20 TPI with left hand thread.
OEM: 70-6523, E6523