Filter Element Base Gasket - Replaces Yamaha OEM 256-13445-00. This cylinder base gasket seals the cylinder-to-crankcase joint and must align with the bore opening, studs, and oil passages.Replace this filter element base gasket whenever the old gasket is crushed, torn, oil-soaked, leaking, or the joint has been opened for service.Fitment / CompatibilityFits Yamaha: Yamaha TX650 (1973-74) Yamaha XS1 1970 Yamaha XS1B 1971 Yamaha XS2 1972 Yamaha XS650 (1975-81) Yamaha XS650S (1978-83) Product Details Gasket / sealing part Replaces Yamaha OEM 256-13445-00 Sold individually XS650Direct part number: 18-0857 Before Ordering Confirm bolt-hole alignment, passage openings, gasket material, and the exact joint being sealed before ordering. Clean the mating faces carefully and avoid gouging aluminum during removal.