Dethatcher blades 690-617-0, 690-521-0, & 690-618-0 are supplied with Oregon® 89-801 dethatching spring and Oregon 02-035 adapter kit. Length Center Outer 16
C to C W/T
690-617-0 690-618-0 690-521-0
18 20
1 1 1
3/8 x 1-1/2 3/8 x 1-1/2 3/8 x 1-1/2
3-1/4 2.25/.149 3-1/4 2.25/.149 3-1/4 2.25/.149
Replacement Springs for Dethatcher Blades Description 89-801
Replacement dethatcher springs (2) needed for each blade