One new Beck brand wheel bearing (made in Japan), part number 051-3608.
This is a rear wheel bearing for:
Mazda RX4 1974 - 1978
Mazda RX7 1984 - 1985
Mazda Cosmo 1976 - 1978
This is a rear wheel outer bearing for:
Nissan 300ZX, 300ZX Turbo, and 200SX Turbo 1984 - 1986