S&S replacement pinion gear for 1954 - early 1977 big twins in Harley-Davidson motorcycles are carefully machined, heat treated and then finish ground. Black color code pinion gears measure 1.4485"-1.4480" over .105" pins for cam gears that measure 2.7670"-2.7675" over .105" pins. S&S Part #: 33-4122
S&S Black Pinion Gear For Big Twin 33-4122
- Brand: S&S Cycle
- Product Code: 33-4122
- Availability: Special Order
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$142.95
Tags: S&S Cycle, Harley Davidson, Classic Pre-1984, Engine, Cam