The Catalina factory did not record when the Catalina 22 equipped with kick-up rudder pintles changed from the original 3/8" diameter to the stronger 1/2" diameter. We know that the Catalina 22 equipped with standard rudders used 1/2" pintles beginning in 1987 with hull #14489. Hulls 14488 and earlier with standard rudders used 3/8" diameter.

Catalina 22's with kick-up rudders changed to 1/2" diameter at a later, unknown date.

An additional hint: All gudgeons from Catalina Yachts that mount with four bolts are 3/8" diameter. Gudgeons that mount with three bolts are 1/2". Measure your hardware to determine diameter before ordering if you are unsure.