NIGP 55912: Bogie Assemblies

NIGP 55912 Bogie Assemblies, an Item code, encompasses the overhaul, maintenance, and refurbishment of streetcar and transit vehicle truck assemblies—the wheel-bearing and suspension components that support vehicle bodies and enable safe rolling stock operation. State and local transit authorities solicit work under this code to restore bogie assemblies to original equipment manufacturer specifications at prescribed maintenance intervals, extending fleet service life and ensuring reliability and safety through end-of-life operation. The work involves disassembly, inspection, component replacement, and reassembly of trucks, axles, wheelsets, hydraulic systems, and braking components according to OEM standards and manufacturer recommendations.

Charlotte Area Transit System (CATS) posted an RFP on August 18, 2026 (solicitation 26920272117) seeking proposals for CATS IV Streetcar Truck Overhauls due October 20, 2026, the most recent posted opportunity under this code. The scope encompasses overhaul of Siemens truck assemblies at 15-year / 270,000-mile intervals, low-floor axles and wheelsets at 300,000-mile intervals, and journal bearing equipment at 6-year / 310,000-mile intervals, with vendor performance to OEM specifications. CATS's internal teams will remove and prepare equipment for shipment and coordinate transport, while the selected vendor will perform all maintenance and reassembly work in-house. No contract value or term length is disclosed.