Norton Crankcase Timing Cover Mainshaft Oil Seal - 500/600/650/750cc Twins
Mainshaft oil seal - locates in the crankcase timing cover.
Correct fitment on Norton twins circa 1949 onwards including Atlas, Dominator and 750cc Commando models.
Also used on 750cc AJS and Matchless twins - G15, G15CS, G15CSR and Model 33.
OD: 1+1/16" (27.1mm)
ID: 1/2" (13.2mm)
Width: 3/16" (4.4mm)
OEM: 048023, D12/913, T2124, 04-8023