1996 Ford Bronco Secondary Air Injection (Thermactor) System Parts Diagram

This is a scanned exploded-view parts illustration of the secondary air injection (Thermactor/air pump emission) system components and hose routing on a Ford V8 engine, filed by the uploader for a 1996 Ford Bronco. The drawing shows the belt-driven air pump (9A486/9A447 area) at the lower right, the air bypass/diverter valves (9B289, 9F491), check valves, air supply tubes and hoses routed across the intake manifold and exhaust manifolds, plus a canister/filter assembly (9H438 hose, 9H467 assembly). Numerous Ford base part number callouts are given, including 9A474, 68B90, 6A664, 9A466, 9K466, 9G459, 9A487, 5F235, 9H300, 9J433, 9F451, 95449, 9F287, and hardware such as clamp/screw part numbers 388497-S8, 390007-S, 38374-S, 386951-S, 383527-S, 45334, 34657-S, and 9G427. Footnote symbols indicate which small parts are also serviced within the 9H300 or 9H467 assemblies, or serviced only in 9H467. The sheet is marked "Page A, cont'd on Page B" and carries drawing number P-21187, indicating it is the first page of a two-page parts breakdown. Readers can use it to identify air injection system component locations, hose routing, and Ford base part numbers for ordering replacements.