Suzuki Holder Assy,BRU - 31173-90J01. Genuine OEM Brush Holder Assembly for Reliable Starter Motor Function. The Suzuki Holder assy,bru - 31173-90J01 is an original equipment replacement part designed to maintain proper alignment and contact of the starter motor brushes in Suzuki outboard engines. A critical component for initiating smooth engine starts, this holder assembly ensures secure brush seating and consistent electrical flow during motor engagement.. Key Features. OEM Precision - Manufa