Description Mazda Factory Race (MFR) Rotor Bearings 13B 12A Turbo & RX7 RX8 best bearings available for engine operation near or above 8500 RPM. Competition Rotor Bearing has approximately .04″/1mm deeper oil grooves and provides approximately .0005″/.012mm more clearance than stock bearings. Fits all 12A 13B engines from 1974-1991 includes: 1 rotor race bearing 100% genuine Mazda items, made in Japan . . . . . . . . . 00000000000000000000000000000000000000000000000000000000000000000000000000000 11-1110-4801 1111104801 480111111 4801-11-111 7029
