0 0 Swing Arm- Boom Assembly $3,200 USD A swing arm is a hydraulically or manually controlled boom assembly mounted to the HydroVac trailer that supports the vacuum hose. It is designed to:, Extend, retract, and pivot the hose to... ConditionNew MLS Number13800599CategoryVacuum Tank Trailers Last Updated9/28/2025 LocationMexia, TX, US Sold ByLone Star Trailer & Body (844) 708-___ SHOWNUMBERCall Seller Email Seller Save More Info