Primary Case Plugs

10 products

Our range of Primary Case Plugs for Harley-Davidson covers Sportster models from 1954–1990 and modern Twin Cam applications including 1999–2025 Twin Cam, 2018–2025 Softail, 2017–2025 FLT/Touring, and Trikes. These essential primary plugs provide secure sealing for inspection and drain points on your primary drive system, preventing leaks while allowing convenient access for maintenance. As an authorised Harley-Davidson dealer, Iron City Motorcycles offers primary plugs from leading brands including Colony, Feuling, Gardner-Westcott, and MCS, ensuring you find the perfect fit for your specific model. Whether you are restoring a vintage Harley-Davidson Sportster or maintaining a modern Twin Cam, proper primary case plugs are essential for protecting your primary drive and keeping your bike clean. Available in various styles from stock-look to custom finishes. Browse the full range below.

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