SIERRA Piston Rings-Standard (2) – 18-3921.
Bore Size: 3.125
6 of 18-3921 = 1 of 39-93481A12
This is a special order item. Most special order items are shipped within 72 hours of ordering, however, some items are not in stock. We will let you know if the item is not available. Alternatively, you may call us at 1-866-473-0420.