18-3921 - Rings 39-93481A12
18-3921 Piston Ring Mercury. Two Rings ONLY as shown.
6 of 18-3921 = 1 of 39-93481A12
Sierra Marine Piston Rings Std (6) is equivalent to parts:
- 39 93481A12 Mercury Marine
- 9-54233 Mallory Marine
Additional information about this part can be found on page(s) 349 of the Sierra Marine catalog.