/live/media/O2/O2_25025174_Fro.jpg)
OE Quality
60-Day Returns
/live/media/O2/O2_25025174_Fro.jpg)
/live/media/O2/O2_25025174_Ac2.jpg)
/live/media/O2/O2_25025174_Ac3.jpg)
/live/media/O2/O2_25025174_Ac4.jpg)
WalkerPart #: 250-25174
Walker 250-25174 Oxygen Sensor - Upstream, Upstream Left or Upstream Right
⚙️ 25 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$103.32Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship
Most orders ship same-day if ordered before 1pm CST.
✅OE Direct Replacement — Bolt-on fit, no modifications needed
📦OE Base Sensor, Upstream, Upstream Left, and Upstream Right
🚗Fitment: Ford and Lincoln, Edge, Mustang, Nautilus, Transit-150, Transit-250, Transit-350, and Transit-350 HD
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST
Not what you need? Click here for all Oxygen Sensor options
Walker 250-25174 Oxygen Sensor - Upstream, Upstream Left or Upstream Right
| Brand | Walker |
| Part Number | 250-25174 |
| Position | OE Base Sensor, Upstream, Upstream Left, and Upstream Right |
| Heated | Yes |
| Sensor Type | Wide-band |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 5 |
| Connector Shape | Oblong |
| Terminal Quantity | 5 |
| Connector Gender | Female |
| Terminal Gender | Male |
| Wrench Size | 22 |
| Thread Size | M18 - 1.5 |
This part fits 25 vehicles. Search below:
| Year | Make | Model | Drive Type | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 2024 | Ford | Edge | 2.0L | L4 | Upstream | OE Base Sensor | ||
| 2024 | Ford | Transit-150 | RWD | 3.5L | V6 | FLEX | Upstream Right | OE Base Sensor |
| 2024 | Ford | Transit-250 | RWD | 3.5L | V6 | FLEX | Upstream Right | OE Base Sensor |
| 2024 | Ford | Transit-350 | RWD | 3.5L | V6 | FLEX | Upstream Right | OE Base Sensor |
| 2024 | Ford | Transit-350 HD | RWD | 3.5L | V6 | FLEX | Upstream Right | OE Base Sensor |
| 2023 | Ford | Edge | 2.0L | L4 | Upstream | OE Base Sensor | ||
| 2023 | Ford | Transit-150 | 3.5L | V6 | FLEX | Upstream Right | OE Base Sensor | |
| 2023 | Ford | Transit-250 | 3.5L | V6 | FLEX | Upstream Right | OE Base Sensor | |
| 2023 | Ford | Transit-350 | RWD | 3.5L | V6 | FLEX | Upstream Right | OE Base Sensor |
| 2023 | Ford | Transit-350 HD | RWD | 3.5L | V6 | FLEX | Upstream Right | OE Base Sensor |
| 2023 | Lincoln | Nautilus | 2.0L | L4 | Upstream | OE Base Sensor | ||
| 2022 | Ford | Edge | 2.0L | L4 | Upstream | OE Base Sensor | ||
| 2022 | Ford | Mustang | 5.2L | V8 | Upstream Left | OE Base Sensor | ||
| 2022 | Ford | Transit-150 | 3.5L | V6 | FLEX | Upstream Right | OE Base Sensor | |
| 2022 | Ford | Transit-250 | 3.5L | V6 | FLEX | Upstream Right | OE Base Sensor | |
| 2022 | Ford | Transit-350 | RWD | 3.5L | V6 | FLEX | Upstream Right | OE Base Sensor |
| 2022 | Ford | Transit-350 HD | RWD | 3.5L | V6 | FLEX | Upstream Right | OE Base Sensor |
| 2021 | Ford | Edge | 2.0L | L4 | Upstream | OE Base Sensor | ||
| 2021 | Ford | Mustang | 5.2L | V8 | Upstream Left | OE Base Sensor | ||
| 2021 | Ford | Transit-350 | RWD | 3.5L | V6 | FLEX | Upstream Right | OE Base Sensor |
| 2021 | Ford | Transit-350 HD | RWD | 3.5L | V6 | FLEX | Upstream Right | OE Base Sensor |
| 2020 | Ford | Edge | 2.0L | L4 | Upstream | OE Base Sensor | ||
| 2020 | Ford | Mustang | 5.2L | V8 | Upstream Left | OE Base Sensor | ||
| 2020 | Ford | Transit-350 | RWD | 3.5L | V6 | FLEX | Upstream Right | OE Base Sensor |
| 2020 | Ford | Transit-350 HD | RWD | 3.5L | V6 | FLEX | Upstream Right | OE Base Sensor |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.