Geniune Mazda Rear Stationary O ring. Suits: O-ring compatible with all 12A, 13B, and 20B engines. Designed to suit all RX- models from 1972 to 2002. Ideal for rebuilds and ensuring a proper seal. (NOT RX-8)Rear Stationary O RingSKU: 0813-10-555A$13.28PriceQuantity*Add to CartBuy Now