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 This is a very helpful  and essential item if you are riding or racing or restoring your SC500 from 1973 1974. This kit is specific for this year only. This is new 6pc engine oil seal kit. You get both (left and right) Crank seals, primary drive (Sprocket) output shaft seal, Shift seal, Clutch seal and  Kick Start shaft seal. Teflon lip seal used as original on crank seal.  New seals that will seal up your engine perfectly not 40 year old seals. You and your bike will be happy!  We only sell the best! Top quality aftermarket item. This is an essential item if you are riding, racing or restoring one of these cool vintage Yamaha's!  We look forward to doing business. 

Please note that this set comes with the Right Side case seal that is size 38x62x10mm in size.  Most bikes used 38mm inner diameter Right side crank seal..but some did have 40mm.  We ship this set with the 38mm size seal...but if you know your bikes needs the 40x62x10 seal you can let us know at time of payment and we would be happy to substitute that seal for you.