Arlen Ness Oil Pressure Gauge Kit - Twin CamProduct Overview A clean, stylish way to mount an oil pressure gauge on Harley Davidson Big Twin and Sportster engines. This kit not only enhances engine monitoring but also adds a custom touch to your bikes look. Key Features Clean Mounting Solution Provides a perfect view of your oil pressure gauge while complementing your engines style. Premium Construction CNC machined aluminum bracket and cone assembly, paired with a high quality USA made