UNSPSC 25173718: Diesel exhaust fluid supply and dosing module

Module used to provide and control the flow of diesel exhaust fluid in the SCR system.

UNSPSC 25173718 Diesel exhaust fluid supply and dosing module is a Commodity code that covers aftertreatment components and fluid systems for heavy-duty vehicle exhaust compliance. State and local governments procure diesel exhaust fluid (DEF) systems, dosing modules, and related exhaust treatment parts to maintain compliance-regulated transit fleets, refuse collection vehicles, and other diesel-powered municipal equipment. The code appears primarily in transit authority and municipal fleet-service procurements rather than in standalone DEF-supply opportunities; recent activity shows state and local buyers sourcing exhaust components, catalyst assemblies, particulate filters, and oxygen sensors as part of broader bus and heavy-equipment maintenance contracts. Issuing bodies include transit authorities (metropolitan planning authorities), school districts managing bus fleets, county and municipal fleet services, and independent transportation districts. These entities typically issue IFBs or RFBs for multi-year supply agreements structured as unit-priced catalogs or firm fixed-price contracts for specified quantities, with cost evaluated as the primary award criterion and local-preference provisions sometimes applied.

Recent activity concentrates in Texas, Florida, New York, and Georgia. The Metropolitan Transit Authority of Harris County (METRO) posted an IFB in February 2026 for purchase and delivery of exhaust parts for transit buses, including diesel particulate filters, oxygen sensors, catalyst assemblies, and aftertreatment modules compatible with Cummins, MCI, NABI, and other transit-bus manufacturers, due March 11, 2026, with delivery to METRO's Central Supply Warehouse in Houston required within 30 calendar days of order. Rockwood School District (Missouri) solicited sealed bids in March 2026 for bus and fleet vehicle parts for fiscal year 2026–2027, including parts for Bluebird and All American school buses with Cummins Diesel and Ford engines, due April 9, 2026. The School Board of Sarasota County, Florida issued a one-year supply agreement in January 2026 for automotive and light truck repair parts with two optional renewals, due February 12, 2026, accepting percentage discounts off manufacturer list price. None of the recent opportunities posted under this specific code explicitly isolate DEF supply or dosing-module procurement as standalone line items; the code appears tagged to broader vehicle-parts and exhaust-system contracts where DEF components form part of the consumable or replacement-parts scope.