GU90403851 Front main crankshaft seal for Eldorado and 850GT, but also updates V700, Ambassador, and 1969-1971 V750 Special. This is the factory upgrade front main seal for these models, replacing the earlier number 90403850. This quality, Italian made Corteco seal, is made of Viton for better heat and wear properties, and has a wave form for better oil control.
Also used as the inner seal in the rear (final) drive, starting in 2003 on California EV, California Stone, Stone Touring, Aluminum, Titanium, Vintage, V11 Sport, V11 Lemans, Cafe Sport, Ballabio and Coppa Italia, under part number 90413850
This seal can be installed in all Big Twin non CARC rear drives from 1967 through 2002, also replacing 90403850. Inclusive of the following models: V700, V750 Special, Ambassador, 850GT, Eldorado, V7 Sport, 750S, S3, 850T, 850T3, 850T4, V1000 Convert, V1000 G5, 850 LeMans, LeMans II, CX100, SP1000, SP II, SP III, Strada, LeMans III, LeMans 1000 all years LeMans IV and LeMans V, 850T5, Mille GT, 1000S, California II, California III, California III injected, California 1100, EV, EV Touring, Jackal, Bassa, California Special, Special Sport, California, Stone, Stone Touring, Aluminum, Titanium, Stone Metal, Quota 1000, Quota ES1100, 1100 Sport carb, 1100 Sport injected, V11 Sport, V11 LeMans, Rosso Mandello, Nero Corsa, Scura, Tenni, Daytona 1000, 1100 Sport carb, 1100 Sport injected, V10 Centauro, Daytona RS, Daytona Racing, MGS01