Aluminum M20x2.5 Crankcase Cap Engine Oil Filler Screw Cover Plug Compatibility Fits motorcycles that use an M20 x 2.5 oil filler screw thread. Compatible with motorcycles that require this size for the crankcase oil filler. Key benefits Function and protection: Serves as the crankcase oil filler screw cap, protecting the filler port from dirt, dust and moisture while allowing easy access during oil checks and changes. Material and durability: Made from aluminum for light weight, strength, and corrosion resistance; 100% brand and . Performance and fit: Elegant exterior design paired with precise engineering for a secure, reliable fit on compatible bikes. Practicality: Durable and practical to use as a replacement part or an upgrade during maintenance. Specifications and attributes Size: M20 x 2.5 thread Material: Aluminum Condition: 100% brand and Function: Crankcase cap and oil filler screw cover plug Use scenarios Scenario 1: During a routine oil change on a motorcycle with M20x2.5 filler screws, a worn or missing filler cap with this plug for a proper seal. Scenario 2: Upgrade or a damaged cap to maintain a clean engine appearance and ensure correct threading fit. Scenario 3: Keep as a spare replacement part for service intervals to minimize downtime and maintain proper crankcase protection.