Standard Ignition Secondary Air Injection Pipe P/N:AT168
Keep fresh air flowing to the catalytic converter with the Standard Ignition Secondary Air Injection Pipe / Manifold Air Tube, part number AT193. It is a direct-fit replacement for the 1983-1984 Ford Ranger and the 1984 Ford Bronco II. See the "Vehicles it fits" section for engine details.
This tube is part of the secondary air injection system. It routes air from that system toward the catalytic converter, where the added oxygen helps the converter process exhaust emissions. The part is listed under two names: Secondary Air Injection Pipe and Manifold Air Tube.
Signs this part may need replacing: a rusted, cracked, or leaking air tube; hissing or ticking from the area near the catalytic converter; or a failed emissions inspection. Other parts of the system can cause these symptoms, so diagnose the cause before replacing the tube.
Interchange: 2-1193 · 779-5392
21193 · 7795392 · EC4323 · E4TZ5F235B
This part cross-references / interchanges with the following part numbers:
What does the Standard Ignition AT193 do?
It is a secondary air injection pipe, also called a manifold air tube. It routes air from the air injection system toward the catalytic converter to help the converter process exhaust emissions.
Which vehicles does AT193 fit?
It is listed for the 1983-1984 Ford Ranger and the 1984 Ford Bronco II. See the "Vehicles it fits" section for engine details.
Why is this part listed under two names?
The catalog classifies it as a Secondary Air Injection Pipe. Standard Ignition's description calls it a Manifold Air Tube. Both names refer to this same part.
What are signs the air tube may need replacing?
Signs include rust, cracks, or leaks in the tube, hissing or ticking near the catalytic converter, or a failed emissions test. Other parts can cause these symptoms, so diagnose the cause first.
What part numbers does AT193 interchange with?
It cross-references 2-1193, 779-5392, EC4323, and E4TZ5F235B.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.