Mahle MS 3.937in+.005in 1.0mm 1.0mm 2.0mm File Fit Rings - 3942MS-112

Mahle MS 3.937in+.005in 1.0mm 1.0mm 2.0mm File Fit Rings - 3942MS-112 help you restore engine compression with precision-fit piston rings.

• Exact 3.937in+.005in size ensures precise cylinder fit for reliable sealing
• 1.0mm top and second rings reduce oil consumption and improve efficiency
• Durable materials provide long-lasting wear resistance and engine protection
• Compatible with various engine rebuilds, supporting smooth installation

Upgrade your engine’s performance with these quality fit rings today.