• Bore - Oversize: Standard
• Cylinders: 4
• Number: 18-3937

Piston ring kits for Sierra and OEM pistons.
Model: Mercury

• SAME-DAY SHIPPING on all orders placed by 11am EST. Delivery delays may vary depending on the carrier. FREE SHIPPING on orders over $99.99
• Bore - Oversize: Standard
• Cylinders: 4
• Number: 18-3937Piston ring kits for Sierra and OEM pistons. Model: Mercury

SAME-DAY SHIPPING on all orders placed by 11am EST. Delivery delays may vary depending on the carrier. FREE SHIPPING on orders over $99.99SIERRA