Crankshaft keys (also called woodruff keys) are semicircular shaped, removable keys that fit into matching keyways cut into the crankshaft leaving protruding tabs. These tabs mate with matching slots on the harmonic balancer flush upon the shaft. It is impossible for them to roll over in the seat which in turn helps guide the harmonic balancer and prevents the harmonic balancer from freely rotating about the shaft.
Application
20R, 22R/RE Three Required 2RZ Two Required 3RZ Two Required 4AG One Required 3VZ One Required 5VZ One Required
This part is sold as each that means one. If you're working on the 20R, 22RE, 22RET order three.
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