S197 Mustang Oxygen Sensors and Catalytic Converters by Application
2005-2014 Mustang oxygen-sensor and catalyst systems. Engine, bank, upstream/downstream position, transmission and emissions certification determine the part.
WHERE TO BUY
Open an exact listing, then confirm fitment, stock, price, and shipping with the seller before ordering.
Seller links checked . Prices and availability can change.
Read the emissions label and confirm engine, bank, sensor position, connector, production and transmission. Diagnose wiring, exhaust leaks and catalyst efficiency before replacing a sensor or converter. Verify EPA/CARB/state legality for the installation location.
OEM numbers
2011-2014 examples include downstream BR3Z-9G444-A and 5.0L upstream applications such as NTK 24348/Bosch 17321 with production qualifiers. Catalysts vary by engine, side, transmission and emissions certification.Supersession
No universal sensor or catalyst chain is asserted. Upstream wideband and downstream monitoring sensors are different, and catalyst legality/application cannot be inferred from flange appearance.
Fitment
Read the emissions label and confirm engine, bank, sensor position, connector, production and transmission. Diagnose wiring, exhaust leaks and catalyst efficiency before replacing a sensor or converter. Verify EPA/CARB/state legality for the installation location.
Aftermarket options
Genuine Ford, NTK/Bosch direct-fit sensors and certified replacement catalysts exist. Off-road/delete pipes are excluded from public-road replacement recommendations.
Before you buy
Match engine, bank, upstream/downstream position, production, transmission and emissions label. Diagnose wiring and exhaust leaks before buying. Verify current federal/state emissions legality; off-road delete parts are not street-repair options.
Research and fitment sources
Supersede reviewed 9 unique research sources for this guide. 4 also appear above as a seller or official action and are not repeated here; 5 additional citations follow.
Research last verified .
