Aftermarket replacement part
Downstream O2 Oxygen Sensor for Ford F-150 2018-2020, Expedition 2018-2021, Mustang 2018-2022, Lincoln Navigator 2019-2021, 3.5L 2.3L
Free shipping within the US. Orders ship within 1 business day and arrive in 1 to 3 business days.
- Part type
- Electrical & Switches
Product overview
A heated 4-wire downstream oxygen (O2) sensor for the Ford F-150, Expedition, Mustang and Transit Connect and the Lincoln Navigator. It sits after the catalytic converter and reports how well the converter is working. A failing downstream sensor often triggers a check engine light and catalyst efficiency codes and can cause a failed emissions test.
Vehicle Fitment
- Ford Expedition 2018-2021, V6 3.5L
- Ford F-150 2018-2020, V6 3.5L, from 07/17/2017; 2021, V6 3.5L, turbocharged gas (B2S2, B1S2)
- Ford Mustang 2018-2019, L4 2.3L, EcoBoost, EcoBoost Premium (B1S2); 2020-2021, L4 2.3L (B1S2); 2022, L4 2.3L
- Ford Transit Connect 2019-2021, L4 2.0L, flex fuel, built to 02/23/2021 (B1S2)
- Lincoln Navigator 2019-2021, V6 3.5L
Position: Downstream (after the catalytic converter).
Replaces Part Numbers
250-241199, 250241199
Specifications
- Wires: 4
- Sensor type: heated
- Mounting: threaded
- Connector gender: female
Before You Order
Match the part number above with the one on your old sensor, or send us your VIN and we will confirm fitment for you. Use an oxygen sensor socket and install on a cool exhaust.
Shipping & Returns
Ships within the United States. Orders are processed within 1 business day. 30-day returns with free return shipping and no restocking fee. Questions? Email info@getorvexa.com or text +1 (252) 705-1212.
Vehicle applications
Listed applicationsVehicles this part is listed for. Match your engine and original part number, or send us your VIN and we will confirm fitment for you.
| Make | Model | Years | Engine / notes |
|---|---|---|---|
| Ford | Expedition | 2018–2021 | V6 3.5L |
| Ford | F-150 | 2017–2020 | V6 3.5L, from 07/17/ |
| Ford | F-150 | 2021 | V6 3.5L, turbocharged gas (B2S2, B1S2) |
| Ford | Mustang | 2018–2019 | L4 2.3L, EcoBoost, EcoBoost Premium (B1S2) |
| Ford | Mustang | 2020–2021 | L4 2.3L (B1S2) |
| Ford | Mustang | 2022 | L4 2.3L |
| Ford | Transit Connect | 2019–2021 | L4 2.0L, flex fuel, built to 02/23/ (B1S2) |
| Lincoln | Navigator | 2019–2021 | V6 3.5L |
Scroll to see all application details
Fitment verification is the buyer's responsibility. A matching year and model alone does not confirm compatibility.
Before installation
Before installation
Professional installation is recommended. Confirm the part, engine code and installation requirements before work begins.
Parts-only liability
Liability is limited to the price paid for the part. Labor, towing, rental vehicles and engine damage are excluded.
Free US shipping
Free shipping within the US. Orders ship within 1 business day and arrive in 1 to 3 business days.