Automotive Aftermarket Products / Warning / Spares and Accessories Spares and Accessories Beacon spares and accessories including lenses, rotators and DIN mounting poles. Amber Lens for Twin Beacons 390 Series Spare Lens 320 Series Spare Lens 420 390 Beacon Drive Belt HD 320 Beacon Drive Belt HD 420 Series Motor Module 390 Series Motor Module 320 Series Motor Module Pole Mount Adaptor Post Curly cord 6 feet for 394 Steel Frame ECCO Beacon Guards