NIGP 55732: Exhaust System Parts and Accessories

NIGP 55732 Exhaust System Parts And Accessories (Item) encompasses replacement and maintenance components for vehicle and industrial exhaust systems, including compensators, gaskets, flex connectors, manifold assemblies, muffler supports, and aftertreatment modules. State and local governments procure these parts for transit bus fleets, power generation facilities, and mobile equipment repair programs. Recent solicitations show transit authorities and utilities buying both engineered components for complex industrial systems and commodity spare parts for routine fleet maintenance.

Transit authorities dominate the issuing-body mix, with the Dallas Area Rapid Transit Authority (DART) and the Metropolitan Transit Authority of Harris County, Texas (METRO) posting multiple opportunities over the past five months. Broward County Transportation Department issued a comprehensive maintenance contract covering engine and chassis system repairs including exhaust components. A Georgia utility or power authority solicited specialized exhaust gas compensators for a 56.8 MW gas-fired power plant. Texas, particularly the Houston and Dallas areas, leads the recent geographic activity. Representative opportunities include METRO's IFB for 34 line items totaling approximately 448 exhaust components (diesel particulate filters, oxygen sensors, catalyst assemblies, aftertreatment modules) for transit buses, posted February 10, 2026, with sealed-bid responses due March 11, 2026; DART's purchase order for a Linkeo Flex Connector Exhaust Steel component, posted March 14, 2026, due March 18, 2026; and Broward County's open-end indefinite quantity contract for Cummins engine and chassis system repair services including exhaust system repairs, posted May 8, 2026, with bids due June 1, 2026. The Georgia gas-plant compensator procurement (posted July 17, 2026, due July 22, 2026) represents industrial-scale application with stainless-steel multi-layer bellows, AF-ST composite gaskets, and high-temperature operating specifications. Transit opportunities typically favor responsive, responsible vendor selection with local preference provisions available and brand-name restrictions to OEM-compatible components.