Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.
Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.
⛽ Drive smarter, cleaner, and longer with Walker’s precision air/fuel sensor!
The Walker Products 250-54007 4-Wire Air/Fuel Ratio Sensor is a high-quality, 100% OE-based oxygen sensor designed for precise measurement of exhaust oxygen content. Engineered with durable stainless steel, laser-welded components, and corrosion-resistant coatings, it ensures reliable performance and easy installation. This sensor optimizes fuel economy and lowers emissions, making it a trusted choice for a wide range of North American vehicles. Professionally approved and performance-tested in the USA, it offers a cost-effective, professional-grade solution for maintaining your vehicle’s efficiency and environmental compliance.
| ASIN | B000C8ZJN8 |
| Best Sellers Rank | #2,140,307 in Automotive ( See Top 100 in Automotive ) #12,181 in Automotive Replacement Oxygen Sensors |
| Brand Name | Walker Products |
| Customer Reviews | 4.2 4.2 out of 5 stars (39) |
| Global Trade Identification Number | 00724620043963 |
| Included Components | Sensor^Anti-Seize Compound^Instruction Sheet |
| Item Dimensions | 5.75 x 1.85 x 2.13 inches |
| Item Type Name | Oxygen Sensor, (4-W Air Fuel Ratio) |
| Item Weight | 3.63 ounces |
| Manufacturer | Walker Products |
| Material Type | Stainless Steel |
| Measurement Accuracy | 12.5 - 18.0% |
| Measuring Range | 12.5 - 18.0 |
| Model | 250-54007 |
| Mounting Type | Flange Mount |
| Output Type | electrical signal |
| Specific Uses For Product | Oxygen Sensor |
| Style Name | Durable |
| UPC | 724620043963 |
| Unit Count | 1.0 Count |
| Warranty Description | 90 Day Warranty |
D**N
Worked great, easy fix for much cheaper than dealer
06 Scion TC, upper oxygen sensor replacement. Worked instantly and the check engine light turned off. Changing it out does require a special socket, but you can rent them from AutoZone if you don't want to purchase it. The mechanic quoted me about $350 to change this out, and took me 20 minutes after finding the part here on Amazon.
D**R
Works like it should...
I tried some off ebay and while the unit worked, the Fuel Air module did not. Tried two from that seller... This was what was actually needed. It is both a Fuel/Air and Oxygen sensor as required by my vehicle - a 2006 Toyota Highlander. With the right tool, change out is quite simple. Without it... what a pain in the ..... Any way, if this is what you need, This is a good buy.
D**N
07 scion tc
07 scion tc up stream air fuel ⛽ sensor. I tried the ebay sensors and they did not work two of them and plus the wire was short I was about to give up when I saw this one on here I sed let's give it a try and I did it fit it has lenth and it works its working perfect for my scion tc.
J**L
Sensor failed almost immediately. dont waste your time or money
Sensor failed almost immediately. dont waste your time or money.
A**J
Plug and play
Worked great as an upstream AF sensor on an 07 es350. No more check engine light. Plug and play
R**S
Five Stars
Install on a 06 Toyota Solara 4 cyl. engine, check engine light went out instantly. Saved many $$.
J**N
Great Upstream O2 Sensor!
I installed this upstream O2 sensor on my Scion tC. Installation was a bit of a pain-- but that's the due to the build of the car. After installation, my CEL went off. My car is running great! I have regained all horsepower and standard gas mileage! Steal for under $100.
D**K
I have not contact the seller, that will come next
I purchased this as a replacement to the Denso factory unit. However as soon as i put this unit in i started having problems it almost seems like the sensor is not calibrated. It got worse and worse with running rich. After 6 days of having it in now it reads 0volts 50% of the time, changes very sluggish and gets worse the warmer the sensor gets. It is making me run a 9.0AFR at idle (0Volts) I have to take off my whole down pipe 3 hours of work to switch this unit out and now am forced to go buy one from the local stealership because my car is not drivable at the moment. my 2 cents, stick with factory parts aka denso they may be more money but apparently worth it. To give a little bit more info i have a 2008 Scion XB Automatic
D**D
Perfect fit
S**T
tres bon produit presque pareil a celui d' origine et fonctionne tres bien
A**D
Hhuh
Trustpilot
1 month ago
1 week ago