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Master Cylinder Reservoir Cap and Diaphragm Kit to Repair Original Master Cylinders. Kit Made in Japan. Fits: All stock 1978-84 XS650's. Kit Contains: Reservoir Cap - OEM # 1J3-25852-01-00 Diaphragm Bushing - OEM # 1J3-25855-01-00 Diaphragm - OEM # 1J3-25854-01 Cap Screws (4) - OEM # 90151-05008-00 Part #08-7000 $49.95/Kit