UNSPSC 25171727: Drum brake wheel cylinder

In a drum brake system, the Wheel Cylinder puts pressure on the brake shoes, which when pressed against the drum, slows down and stops the vehicle. The cylinder is connected to the shoes by small rods.

UNSPSC 25171727 Drum brake wheel cylinder is a Commodity code that covers replacement brake components for fleet and transit vehicles. State and local governments procure these parts primarily as consumables in ongoing maintenance of public transit buses, municipal fleets, and county vehicle inventories. Recent solicitations show demand concentrated in brake system overhauls, repower programs, and routine fleet repair operations where drum brakes remain the standard for heavy-duty vehicles. The mix of issuing bodies includes transit authorities (Broward County Transportation, Charlotte Area Transit System, City of Gainesville), county fleet management departments (Brevard County, San Bernardino County), school districts (Sarasota County Schools), and municipal departments (City of Atlanta). Transit agencies and county fleet operations appear as repeat solicitors, reflecting ongoing replacement cycles for brake systems on 35- to 60-foot buses and commercial truck fleets.

Geographic activity spans Florida (Broward County, Charlotte, Gainesville, Brevard County, Sarasota County Schools), California (San Bernardino County), Georgia (City of Atlanta), and North Carolina (Charlotte Area Transit System), with additional cooperative purchasing frameworks extending reach nationwide through Sourcewell. Representative recent opportunities include the City of Charlotte CATS Bus Brakes and Suspension Parts ITB (solicitation 269-2026-2041, due May 13, 2026) seeking over 600 line items of brake and suspension components for 246 buses and 95 paratransit vehicles; the City of Gainesville Heavy-Duty Bus Parts ITB (RTSX270003DS, due May 12, 2026) across eight lots including HD Brake Kits with fourteen-day delivery guarantees; and Broward County Transportation's mid-life rolling stock repower overhaul services contract (TRN2131187B1, due February 23, 2026) encompassing complete brake system renewal for approximately 198 buses. Sourcewell cooperative contracts such as the Illinois aftermarket vehicle parts master agreement (26-416CMS-BOSS4-B-51821, awarded to Genuine Parts Company / NAPA Auto Parts for $7,500,000 over three years effective May 20, 2026) establish framework pricing available to thousands of public entities. Part sourcing typically requires OEM specifications or equivalent, delivery within 48 hours to two weeks, and compliance with federal funding requirements where FTA dollars apply.