3R-SSP066 is a kit consisting wear parts that may be replaced on service intervals.
A spare part kit for the following products:
3R-222.1 (requires two sets)
3R-222.2 (requires two sets)
3R-653 (requires two sets)
3R-SP5663 (requires two sets)
Note: versions before 1993, requires different spare part kit. See 19390-00.