Ford 5.0L Secondary Air (Thermactor) System Exploded Parts Diagram - 1990 Bronco

This document is an exploded parts diagram of a Ford secondary air injection (Thermactor) system, uploaded to accompany a 1990 Ford Bronco with the 5.0L engine. The line drawing shows an EFI V8 engine assembly with routing of air hoses and tubes, the air pump (9A486), pump pulley (9B447), check valves, bypass/diverter valve components, mounting brackets (9H467), hoses (9B458, 9B466), tubes (9F451, 9F287, 9G424, 9G459, 9D449-series), a bracket/pulley tensioner area (10A313, 6B209), and numerous hose clamps (388497-S8) and fasteners (56543-S36, 56563-S2, 390300-S2, 389483-S36, N802493-S2, 34656-S, 386951-S, 57648-S, 56192-S, 56124-S2, 34976-S2). Each component is identified by its Ford base part number or hardware standard part number, some with suffix codes in parentheses (e.g., B-320-F, M-89-CD, AU-9-P, BB-187-EC). Arrows indicate assembly orientation of hose routings to the engine. The diagram carries the drawing reference P-20661 with a print date of 09/26/2008. A reader can use this figure to identify part numbers for ordering replacement Thermactor/secondary air components, clamps, and mounting hardware, and to see how the air pump, hoses, and tubes route and attach on the engine.