Fix engine light & restore performance - O2 sensor upstream designed to improve engine response, reduce rough idle and fuel usage. Helps maintain stable driving and smooth acceleration.
Direct fit for specific models - Upstream oxygen sensor for ford focus 2008-2011 2.0L and for ford transit connect 2010-2013 2.0L. Designed to match connector and thread for quick installation.
Stable signal & fast response - Oxygen sensor upstream bank 1 provides consistent data transmission to support proper engine adjustment and driving stability.
OE standard specifications - Wire Quantity: 4; Heated sensor; Threaded mounting; Male connector. Replace part numbers: 1900-543171, 234-4107, 18029 and more.
Please confirm before purchase - Check your original sensor shape, connector and vehicle details carefully to ensure compatibility and avoid incorrect orders.