What is the base part number for the Thermactor air pump shown in this diagram?

The air pump assembly is labeled 9A486, shown in two mounting configurations with brackets 9B447, 9B450, and 9B452.

What part numbers are shown for the air hoses and clamps?

Hoses are labeled 9B466, 9C433, and 9C475, with hose clamps labeled 8287 used at multiple locations.

What are the air distribution tube/manifold part numbers?

The diagram calls out 9F287, 9B289, and 9B290 for the air distribution tubes/manifolds, noted as connecting to 'PART OF 12226'.

Are the numbers in this diagram usable for ordering parts directly?

The footer states 'Numbers For Reference Use Only, COPYRIGHT FoMoCo,' meaning they are basic reference numbers, not complete service part numbers.

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1974 Ford Bronco Thermactor Air Pump & Emissions Hose Exploded Parts Diagram

Exploded diagram of air pump and bracket assembly with Ford part numbers

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Exploded parts diagram of an air injection pump, brackets, hoses, and fasteners labeled with Ford part numbers.

AI caption April 2006 · Photo 74 of 206

This is a scanned Ford factory (FoMoCo) exploded parts diagram, page reference P.11229, showing the Thermactor air injection (emissions) pump system and related plumbing on a V8 engine. The illustration depicts the air pump assembly (base part 9A486) in two mounting configurations, with associated brackets (9B447, 9B450, 9B452), pulleys, hoses (9B466, 9C433, 9C475), hose clamps (8287), air distribution manifolds/tubes (9F287, 9B289, 9B290), check valves/fittings (9A484, 9A487, 9B445, 9B471), and portions of the intake manifold assembly (PART OF 12226). Numerous hardware standard part numbers with size codes are called out, including 57494-S (B-330/BB-330), 57658-S, 57719(-S), 57723-S, 58650-S, 300902-S, 34807-S (X-66), 351440-S, 355432-S (BB-149), 356382-S, 370585-S, 375527-S (BB-429-E), 375836-S (11-104-G), 381649-S (BB-563-AH), and 45562-S (B-69). Arrows indicate hose routing from the pump to the air injection tubes on both cylinder banks. The footer notes the numbers are for reference use only and the drawing is copyright Ford Motor Company. A reader can use this page to identify base part numbers and attaching hardware for the emissions air pump system and its hose routing.

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Frequently asked questions

What is the base part number for the Thermactor air pump shown in this diagram?: The air pump assembly is labeled 9A486, shown in two mounting configurations with brackets 9B447, 9B450, and 9B452.
What part numbers are shown for the air hoses and clamps?: Hoses are labeled 9B466, 9C433, and 9C475, with hose clamps labeled 8287 used at multiple locations.
What are the air distribution tube/manifold part numbers?: The diagram calls out 9F287, 9B289, and 9B290 for the air distribution tubes/manifolds, noted as connecting to 'PART OF 12226'.
What attaching hardware part numbers are listed for the pump brackets?: Hardware callouts include 57494-S (B-330/BB-330), ★57719(-S), ★57723-S, ★57658-S, ★58650-S, ★300902-S, 34807-S (X-66), ★351440-S, 355432-S (BB-149), ★356382-S, ★370585-S, 375527-S (BB-429-E), 375836-S (11-104-G), 381649-S (BB-563-AH), and 45562-S (B-69).
Are the numbers in this diagram usable for ordering parts directly?: The footer states 'Numbers For Reference Use Only, COPYRIGHT FoMoCo,' meaning they are basic reference numbers, not complete service part numbers.