Mahle Rings Performance Napier Steel 2nd Ring 4.045in x 1.0MM .136in RW Plain Ring Set - 3021239

Mahle Rings Performance Napier Steel 2nd Ring 4.045in x 1.0MM .136in RW Plain Ring Set helps you improve engine compression and reduce oil consumption.

• Made from durable Napier steel for long-lasting performance
• Fits 4.045-inch bore engines, ensuring precise compatibility
• 1.0MM thickness balances sealing and ring gap control
• Plain ring design reduces friction for smoother operation
• Part #3021239 from Mahle Rings, trusted OEM quality

Upgrade your engine’s efficiency today.